Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

Holesky Deployment #6

Merged
merged 6 commits into from
Sep 26, 2024
Merged

Holesky Deployment #6

merged 6 commits into from
Sep 26, 2024

Conversation

preston4896
Copy link
Collaborator

No description provided.

@github-actions GitHub Actions
Copy link

github-actions bot commented Sep 26, 2024 •
edited
Loading

Slither report

Click me to view the full report Summary - [encode-packed-collision](#encode-packed-collision) (4 results) (High) - [incorrect-shift](#incorrect-shift) (1 results) (High) - [uninitialized-local](#uninitialized-local) (27 results) (Medium) - [unused-return](#unused-return) (3 results) (Medium) - [missing-zero-check](#missing-zero-check) (2 results) (Low) - [calls-loop](#calls-loop) (1 results) (Low) - [timestamp](#timestamp) (4 results) (Low) - [assembly](#assembly) (10 results) (Informational) - [cyclomatic-complexity](#cyclomatic-complexity) (4 results) (Informational) - [dead-code](#dead-code) (1 results) (Informational) - [solc-version](#solc-version) (2 results) (Informational) - [low-level-calls](#low-level-calls) (1 results) (Informational) - [missing-inheritance](#missing-inheritance) (1 results) (Informational) - [naming-convention](#naming-convention) (20 results) (Informational) - [too-many-digits](#too-many-digits) (2 results) (Informational) - [immutable-states](#immutable-states) (5 results) (Optimization) ## encode-packed-collision Impact: High Confidence: High - [ ] ID-0 [X509CRLHelper._getSignature(bytes,uint256)](https://github.com/automata-network/automata-on-chain-pccs/blob/3c00165d31be27b30a93e73bf9a6bc32c6f2861d/src/helpers/X509CRLHelper.sol#L200-L210) calls abi.encodePacked() with multiple dynamic arguments: - [sig = abi.encodePacked(sigX,sigY)](https://github.com/automata-network/automata-on-chain-pccs/blob/3c00165d31be27b30a93e73bf9a6bc32c6f2861d/src/helpers/X509CRLHelper.sol#L209)

automata-on-chain-pccs/src/helpers/X509CRLHelper.sol

Lines 200 to 210 in 3c00165

function _getSignature(bytes calldata der, uint256 sigPtr) private pure returns (bytes memory sig) {
sigPtr = der.rootOfBitStringAt(sigPtr);
sigPtr = der.firstChildOf(sigPtr);
bytes memory sigX = _trimBytes(der.bytesAt(sigPtr), 32);
sigPtr = der.nextSiblingOf(sigPtr);
bytes memory sigY = _trimBytes(der.bytesAt(sigPtr), 32);
sig = abi.encodePacked(sigX, sigY);
}

automata-on-chain-pccs/src/bases/PckDao.sol

Lines 375 to 389 in 3c00165

function _validatePckTcb(bytes2 pceid, bytes18 tcbm, bytes memory der, uint256 pckExtensionPtr) private view {
(uint16 pcesvn, uint8[] memory cpusvns,, bytes memory pceidBytes) =
pckLib.parsePckExtension(der, pckExtensionPtr);
bool pceidMatched = bytes2(pceidBytes) == pceid;
bytes memory encodedPceSvn = _littleEndianEncode(abi.encodePacked(pcesvn));
bytes memory encodedCpuSvn;
for (uint256 i = 0; i < cpusvns.length; i++) {
encodedCpuSvn = abi.encodePacked(encodedCpuSvn, cpusvns[i]);
}
bytes memory encodedTcbmBytes = abi.encodePacked(encodedCpuSvn, encodedPceSvn);
bool tcbIsValid = tcbm == bytes18(encodedTcbmBytes);
if (!pceidMatched || !tcbIsValid) {
revert TCB_Mismatch();
}
}

automata-on-chain-pccs/src/helpers/X509Helper.sol

Lines 209 to 219 in 3c00165

function _getSignature(bytes calldata der, uint256 sigPtr) private pure returns (bytes memory sig) {
sigPtr = der.rootOfBitStringAt(sigPtr);
sigPtr = der.firstChildOf(sigPtr);
bytes memory sigX = _trimBytes(der.bytesAt(sigPtr), 32);
sigPtr = der.nextSiblingOf(sigPtr);
bytes memory sigY = _trimBytes(der.bytesAt(sigPtr), 32);
sig = abi.encodePacked(sigX, sigY);
}

automata-on-chain-pccs/src/helpers/X509CRLHelper.sol

Lines 163 to 193 in 3c00165

function _getRevokedSerialNumbers(bytes calldata der, uint256 revokedParentPtr, bool breakIfFound, uint256 filter)
private
pure
returns (uint256[] memory serialNumbers)
{
uint256 revokedPtr = der.firstChildOf(revokedParentPtr);
if (der[revokedPtr.ixs()] == 0xA0) {
uint256 crlExtensionPtr = der.firstChildOf(revokedPtr);
require(BytesUtils.compareBytes(der.bytesAt(crlExtensionPtr), CRL_NUMBER_OID), "invalid CRL");
} else {
bytes memory serials;
while (revokedPtr.ixl() <= revokedParentPtr.ixl()) {
uint256 serialPtr = der.firstChildOf(revokedPtr);
bytes memory serialBytes = der.bytesAt(serialPtr);
uint256 serialNumber = _parseSerialNumber(serialBytes);
serials = abi.encodePacked(serials, serialNumber);
if (breakIfFound && filter == serialNumber) {
serialNumbers = new uint256[](1);
serialNumbers[0] = filter;
return serialNumbers;
}
revokedPtr = der.nextSiblingOf(revokedPtr);
}
uint256 count = serials.length / 32;
// ABI encoding format for a dynamic uint256[] value
serials = abi.encodePacked(abi.encode(0x20), abi.encode(count), serials);
serialNumbers = new uint256[](count);
serialNumbers = abi.decode(serials, (uint256[]));
}
}

incorrect-shift

Impact: High
Confidence: High

automata-on-chain-pccs/src/bases/DaoBase.sol

Lines 28 to 50 in 3c00165

function _parseUintFromHex(string memory s) internal pure returns (uint256 result) {
/// @solidity memory-safe-assembly
assembly {
let n := mload(s)
// Skip two if starts with '0x' or '0X'.
let i := shl(1, and(eq(0x3078, or(shr(240, mload(add(s, 0x20))), 0x20)), gt(n, 1)))
for {} 1 {} {
i := add(i, 1)
let c :=
byte(
and(0x1f, shr(and(mload(add(s, i)), 0xff), 0x3e4088843e41bac000000000000)),
0x3010a071000000b0104040208000c05090d060e0f
)
n := mul(n, iszero(or(iszero(c), shr(252, result))))
result := add(shl(4, result), sub(c, 1))
if iszero(lt(i, n)) { break }
}
if iszero(n) {
mstore(0x00, 0x10182796) // `ParsingFailed()`.
revert(0x1c, 0x04)
}
}
}

uninitialized-local

Impact: Medium
Confidence: Medium

automata-on-chain-pccs/src/helpers/FmspcTcbHelper.sol

Line 110 in 3c00165

bool fmspcFound;

automata-on-chain-pccs/src/helpers/FmspcTcbHelper.sol

Line 109 in 3c00165

bool tcbTypeFound;

automata-on-chain-pccs/src/helpers/FmspcTcbHelper.sol

Line 182 in 3c00165

bool tcbLevelsFound;

automata-on-chain-pccs/src/helpers/FmspcTcbHelper.sol

Line 183 in 3c00165

JSONParserLib.Item[] memory tcbLevelsObj;

automata-on-chain-pccs/src/helpers/FmspcTcbHelper.sol

Line 217 in 3c00165

bool versionFound;

automata-on-chain-pccs/src/utils/DateTimeUtils.sol

Line 16 in 3c00165

uint16 yrs;

automata-on-chain-pccs/src/utils/DateTimeUtils.sol

Line 20 in 3c00165

uint8 mins;

automata-on-chain-pccs/src/utils/DateTimeUtils.sol

Line 21 in 3c00165

uint8 secs;

automata-on-chain-pccs/src/bases/PcsDao.sol

Line 208 in 3c00165

bool sigVerified;

automata-on-chain-pccs/src/bases/FmspcTcbDao.sol

Line 174 in 3c00165

TDXModuleIdentity[] memory moduleIdentities;

automata-on-chain-pccs/src/helpers/FmspcTcbHelper.sol

Line 116 in 3c00165

bool idFound;

automata-on-chain-pccs/src/helpers/FmspcTcbHelper.sol

Line 113 in 3c00165

bool nextUpdateFound;

automata-on-chain-pccs/src/bases/PckDao.sol

Line 337 in 3c00165

string memory expectedIssuer;

automata-on-chain-pccs/src/utils/DateTimeUtils.sol

Line 22 in 3c00165

uint8 offset;

automata-on-chain-pccs/src/helpers/FmspcTcbHelper.sol

Line 218 in 3c00165

bool idFound;

automata-on-chain-pccs/src/helpers/FmspcTcbHelper.sol

Line 220 in 3c00165

bool tdxModuleIdentitiesFound;

automata-on-chain-pccs/src/bases/FmspcTcbDao.sol

Line 173 in 3c00165

TDXModule memory module;

automata-on-chain-pccs/src/bases/PcsDao.sol

Line 171 in 3c00165

string memory expectedSubject;

automata-on-chain-pccs/src/helpers/FmspcTcbHelper.sol

Line 181 in 3c00165

bool versionFound;

automata-on-chain-pccs/src/utils/DateTimeUtils.sol

Line 19 in 3c00165

uint8 hrs;

automata-on-chain-pccs/src/helpers/FmspcTcbHelper.sol

Line 115 in 3c00165

bool evaluationFound;

automata-on-chain-pccs/src/helpers/FmspcTcbHelper.sol

Line 117 in 3c00165

bool allFound;

automata-on-chain-pccs/src/utils/DateTimeUtils.sol

Line 18 in 3c00165

uint8 dys;

automata-on-chain-pccs/src/helpers/FmspcTcbHelper.sol

Line 219 in 3c00165

bool tdxModuleFound;

automata-on-chain-pccs/src/helpers/FmspcTcbHelper.sol

Line 112 in 3c00165

bool issueDateFound;

automata-on-chain-pccs/src/helpers/FmspcTcbHelper.sol

Line 111 in 3c00165

bool versionFound;

automata-on-chain-pccs/src/helpers/FmspcTcbHelper.sol

Line 114 in 3c00165

bool pceidFound;

unused-return

Impact: Medium
Confidence: Medium

automata-on-chain-pccs/src/bases/PckDao.sol

Lines 375 to 389 in 3c00165

function _validatePckTcb(bytes2 pceid, bytes18 tcbm, bytes memory der, uint256 pckExtensionPtr) private view {
(uint16 pcesvn, uint8[] memory cpusvns,, bytes memory pceidBytes) =
pckLib.parsePckExtension(der, pckExtensionPtr);
bool pceidMatched = bytes2(pceidBytes) == pceid;
bytes memory encodedPceSvn = _littleEndianEncode(abi.encodePacked(pcesvn));
bytes memory encodedCpuSvn;
for (uint256 i = 0; i < cpusvns.length; i++) {
encodedCpuSvn = abi.encodePacked(encodedCpuSvn, cpusvns[i]);
}
bytes memory encodedTcbmBytes = abi.encodePacked(encodedCpuSvn, encodedPceSvn);
bool tcbIsValid = tcbm == bytes18(encodedTcbmBytes);
if (!pceidMatched || !tcbIsValid) {
revert TCB_Mismatch();
}
}

automata-on-chain-pccs/src/bases/PckDao.sol

Lines 319 to 324 in 3c00165

function _upsertTcbm(bytes16 qeid, bytes2 pceid, bytes18 tcbm) private {
bytes32 k = keccak256(abi.encodePacked(qeid, pceid));
if (!_tcbmHSets[k].contains(bytes32(tcbm))) {
_tcbmHSets[k].add(bytes32(tcbm));
}
}

automata-on-chain-pccs/src/bases/FmspcTcbDao.sol

Lines 163 to 180 in 3c00165

function _buildAttestationData(string memory tcbInfoStr, bytes memory signature)
private
view
returns (bytes memory attestationData, TcbInfoBasic memory tcbInfo)
{
(, TCBLevelsObj[] memory tcbLevels) = FmspcTcbLib.parseTcbLevels(tcbInfoStr);
tcbInfo = FmspcTcbLib.parseTcbString(tcbInfoStr);
if (tcbInfo.version < 3) {
attestationData = abi.encode(tcbInfo, tcbLevels, tcbInfoStr, signature);
} else {
TDXModule memory module;
TDXModuleIdentity[] memory moduleIdentities;
if (tcbInfo.id == TcbId.TDX) {
(module, moduleIdentities) = FmspcTcbLib.parseTcbTdxModules(tcbInfoStr);
}
attestationData = abi.encode(tcbInfo, module, moduleIdentities, tcbLevels, tcbInfoStr, signature);
}
}

missing-zero-check

Impact: Low
Confidence: Medium

automata-on-chain-pccs/src/automata_pccs/AutomataPckDao.sol

Line 17 in 3c00165

function updateDeps(address _pcs, address _x509, address _crl) external onlyOwner {

automata-on-chain-pccs/src/automata_pccs/AutomataPcsDao.sol

Line 14 in 3c00165

function updateDeps(address _x509, address _crl) external onlyOwner {

calls-loop

Impact: Low
Confidence: Medium

automata-on-chain-pccs/src/automata_pccs/shared/AutomataDaoBase.sol

Lines 22 to 24 in 3c00165

function getAttestedData(bytes32 attestationId) public view override returns (bytes memory attestationData) {
attestationData = pccsStorage.readPccs(attestationId);
}

timestamp

Impact: Low
Confidence: Medium

automata-on-chain-pccs/src/helpers/X509CRLHelper.sol

Lines 66 to 75 in 3c00165

function crlIsNotExpired(bytes calldata der) external view returns (bool isValid) {
uint256 root = der.root();
uint256 tbsParentPtr = der.firstChildOf(root);
uint256 tbsPtr = der.firstChildOf(tbsParentPtr);
tbsPtr = der.nextSiblingOf(tbsPtr);
tbsPtr = der.nextSiblingOf(tbsPtr);
tbsPtr = der.nextSiblingOf(tbsPtr);
(uint256 validityNotBefore, uint256 validityNotAfter) = _getValidity(der, tbsPtr);
isValid = block.timestamp > validityNotBefore && block.timestamp < validityNotAfter;
}

automata-on-chain-pccs/src/helpers/X509Helper.sol

Lines 70 to 80 in 3c00165

function certIsNotExpired(bytes calldata der) external view returns (bool isValid) {
uint256 root = der.root();
uint256 tbsParentPtr = der.firstChildOf(root);
uint256 tbsPtr = der.firstChildOf(tbsParentPtr);
tbsPtr = der.nextSiblingOf(tbsPtr);
tbsPtr = der.nextSiblingOf(tbsPtr);
tbsPtr = der.nextSiblingOf(tbsPtr);
tbsPtr = der.nextSiblingOf(tbsPtr);
(uint256 validityNotBefore, uint256 validityNotAfter) = _getValidity(der, tbsPtr);
isValid = block.timestamp > validityNotBefore && block.timestamp < validityNotAfter;
}

automata-on-chain-pccs/src/bases/EnclaveIdentityDao.sol

Lines 128 to 154 in 3c00165

function _buildEnclaveIdentityAttestationRequest(
uint256 id,
uint256 version,
EnclaveIdentityJsonObj calldata enclaveIdentityObj
) private view returns (AttestationRequest memory req) {
bytes32 predecessorAttestationId = _getAttestationId(id, version);
IdentityObj memory identity = EnclaveIdentityLib.parseIdentityString(enclaveIdentityObj.identityStr);
if (id != uint256(identity.id)) {
revert Enclave_Id_Mismatch();
}
if (block.timestamp < identity.issueDateTimestamp || block.timestamp > identity.nextUpdateTimestamp) {
revert Enclave_Id_Expired();
}
bytes memory attestationData =
abi.encode(identity, enclaveIdentityObj.identityStr, enclaveIdentityObj.signature);
AttestationRequestData memory reqData = AttestationRequestData({
recipient: msg.sender,
expirationTime: uint64(identity.nextUpdateTimestamp),
revocable: true,
refUID: predecessorAttestationId,
data: attestationData,
value: 0
});
req = AttestationRequest({schema: enclaveIdentitySchemaID(), data: reqData});
}

automata-on-chain-pccs/src/bases/FmspcTcbDao.sol

Lines 140 to 161 in 3c00165

function _buildTcbAttestationRequest(TcbInfoJsonObj calldata tcbInfoObj)
private
view
returns (AttestationRequest memory req, TcbInfoBasic memory tcbInfo)
{
bytes memory attestationData;
(attestationData, tcbInfo) = _buildAttestationData(tcbInfoObj.tcbInfoStr, tcbInfoObj.signature);
bytes32 predecessorAttestationId = _getAttestationId(uint8(tcbInfo.id), tcbInfo.fmspc, tcbInfo.version);
if (block.timestamp < tcbInfo.issueDate || block.timestamp > tcbInfo.nextUpdate) {
revert TCB_Expired();
}
AttestationRequestData memory reqData = AttestationRequestData({
recipient: msg.sender,
expirationTime: uint64(tcbInfo.nextUpdate),
revocable: true,
refUID: predecessorAttestationId,
data: attestationData,
value: 0
});
bytes32 schemaId = tcbInfo.version < 3 ? fmpscTcbV2SchemaID() : fmpscTcbV3SchemaID();
req = AttestationRequest({schema: schemaId, data: reqData});
}

assembly

Impact: Informational
Confidence: High

automata-on-chain-pccs/src/utils/BytesUtils.sol

Lines 178 to 183 in 3c00165

function readUint32(bytes memory self, uint256 idx) internal pure returns (uint32 ret) {
require(idx + 4 <= self.length);
assembly {
ret := and(mload(add(add(self, 4), idx)), 0xFFFFFFFF)
}
}

automata-on-chain-pccs/src/utils/BytesUtils.sol

Lines 204 to 210 in 3c00165

function readBytes20(bytes memory self, uint256 idx) internal pure returns (bytes20 ret) {
require(idx + 20 <= self.length);
assembly {
ret :=
and(mload(add(add(self, 32), idx)), 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF000000000000000000000000)
}
}

automata-on-chain-pccs/src/bases/DaoBase.sol

Lines 28 to 50 in 3c00165

function _parseUintFromHex(string memory s) internal pure returns (uint256 result) {
/// @solidity memory-safe-assembly
assembly {
let n := mload(s)
// Skip two if starts with '0x' or '0X'.
let i := shl(1, and(eq(0x3078, or(shr(240, mload(add(s, 0x20))), 0x20)), gt(n, 1)))
for {} 1 {} {
i := add(i, 1)
let c :=
byte(
and(0x1f, shr(and(mload(add(s, i)), 0xff), 0x3e4088843e41bac000000000000)),
0x3010a071000000b0104040208000c05090d060e0f
)
n := mul(n, iszero(or(iszero(c), shr(252, result))))
result := add(shl(4, result), sub(c, 1))
if iszero(lt(i, n)) { break }
}
if iszero(n) {
mstore(0x00, 0x10182796) // `ParsingFailed()`.
revert(0x1c, 0x04)
}
}
}

automata-on-chain-pccs/src/utils/BytesUtils.sol

Lines 165 to 170 in 3c00165

function readUint16(bytes memory self, uint256 idx) internal pure returns (uint16 ret) {
require(idx + 2 <= self.length);
assembly {
ret := and(mload(add(add(self, 2), idx)), 0xFFFF)
}
}

automata-on-chain-pccs/src/utils/BytesUtils.sol

Lines 15 to 20 in 3c00165

function keccak(bytes memory self, uint256 offset, uint256 len) internal pure returns (bytes32 ret) {
require(offset + len <= self.length);
assembly {
ret := keccak256(add(add(self, 32), offset), len)
}
}

automata-on-chain-pccs/src/utils/BytesUtils.sol

Lines 259 to 273 in 3c00165

function substring(bytes memory self, uint256 offset, uint256 len) internal pure returns (bytes memory) {
require(offset + len <= self.length);
bytes memory ret = new bytes(len);
uint256 dest;
uint256 src;
assembly {
dest := add(ret, 32)
src := add(add(self, 32), offset)
}
memcpy(dest, src, len);
return ret;
}

automata-on-chain-pccs/src/utils/BytesUtils.sol

Lines 47 to 92 in 3c00165

function compare(
bytes memory self,
uint256 offset,
uint256 len,
bytes memory other,
uint256 otheroffset,
uint256 otherlen
) internal pure returns (int256) {
uint256 shortest = len;
if (otherlen < len) {
shortest = otherlen;
}
uint256 selfptr;
uint256 otherptr;
assembly {
selfptr := add(self, add(offset, 32))
otherptr := add(other, add(otheroffset, 32))
}
for (uint256 idx = 0; idx < shortest; idx += 32) {
uint256 a;
uint256 b;
assembly {
a := mload(selfptr)
b := mload(otherptr)
}
if (a != b) {
// Mask out irrelevant bytes and check again
uint256 mask;
if (shortest > 32) {
mask = type(uint256).max; // aka 0xffffff....
} else {
mask = ~(2 ** (8 * (32 - shortest + idx)) - 1);
}
uint256 diff = (a & mask) - (b & mask);
if (diff != 0) {
return int256(diff);
}
}
selfptr += 32;
otherptr += 32;
}
return int256(len) - int256(otherlen);
}

automata-on-chain-pccs/src/utils/BytesUtils.sol

Lines 191 to 196 in 3c00165

function readBytes32(bytes memory self, uint256 idx) internal pure returns (bytes32 ret) {
require(idx + 32 <= self.length);
assembly {
ret := mload(add(add(self, 32), idx))
}
}

automata-on-chain-pccs/src/utils/BytesUtils.sol

Lines 219 to 226 in 3c00165

function readBytesN(bytes memory self, uint256 idx, uint256 len) internal pure returns (bytes32 ret) {
require(len <= 32);
require(idx + len <= self.length);
assembly {
let mask := not(sub(exp(256, sub(32, len)), 1))
ret := and(mload(add(add(self, 32), idx)), mask)
}
}

automata-on-chain-pccs/src/utils/BytesUtils.sol

Lines 228 to 251 in 3c00165

function memcpy(uint256 dest, uint256 src, uint256 len) private pure {
// Copy word-length chunks while possible
for (; len >= 32; len -= 32) {
assembly {
mstore(dest, mload(src))
}
dest += 32;
src += 32;
}
// Copy remaining bytes
uint256 mask;
if (len == 0) {
mask = type(uint256).max; // Set to maximum value of uint256
} else {
mask = 256 ** (32 - len) - 1;
}
assembly {
let srcpart := and(mload(src), not(mask))
let destpart := and(mload(dest), mask)
mstore(dest, or(destpart, srcpart))
}
}

cyclomatic-complexity

Impact: Informational
Confidence: High

automata-on-chain-pccs/src/helpers/FmspcTcbHelper.sol

Lines 105 to 170 in 3c00165

function parseTcbString(string calldata tcbInfoStr) external pure returns (TcbInfoBasic memory tcbInfo) {
JSONParserLib.Item memory root = JSONParserLib.parse(tcbInfoStr);
JSONParserLib.Item[] memory tcbInfoObj = root.children();
bool tcbTypeFound;
bool fmspcFound;
bool versionFound;
bool issueDateFound;
bool nextUpdateFound;
bool pceidFound;
bool evaluationFound;
bool idFound;
bool allFound;
for (uint256 y = 0; y < root.size(); y++) {
JSONParserLib.Item memory current = tcbInfoObj[y];
string memory decodedKey = JSONParserLib.decodeString(current.key());
string memory val = current.value();
if (decodedKey.eq("tcbType")) {
tcbInfo.tcbType = uint8(JSONParserLib.parseUint(val));
tcbTypeFound = true;
} else if (decodedKey.eq("id")) {
string memory idStr = JSONParserLib.decodeString(val);
if (idStr.eq("SGX")) {
tcbInfo.id = TcbId.SGX;
} else if (idStr.eq("TDX")) {
tcbInfo.id = TcbId.TDX;
} else {
revert TCBInfo_Invalid();
}
idFound = true;
} else if (decodedKey.eq("fmspc")) {
tcbInfo.fmspc = bytes6(uint48(JSONParserLib.parseUintFromHex(JSONParserLib.decodeString(val))));
fmspcFound = true;
} else if (decodedKey.eq("version")) {
tcbInfo.version = uint32(JSONParserLib.parseUint(val));
versionFound = true;
} else if (decodedKey.eq("issueDate")) {
tcbInfo.issueDate = uint64(DateTimeUtils.fromISOToTimestamp(JSONParserLib.decodeString(val)));
issueDateFound = true;
} else if (decodedKey.eq("nextUpdate")) {
tcbInfo.nextUpdate = uint64(DateTimeUtils.fromISOToTimestamp(JSONParserLib.decodeString(val)));
nextUpdateFound = true;
} else if (decodedKey.eq("pceId")) {
tcbInfo.pceid = bytes2(uint16(JSONParserLib.parseUintFromHex(JSONParserLib.decodeString(val))));
pceidFound = true;
} else if (decodedKey.eq("tcbEvaluationDataNumber")) {
tcbInfo.evaluationDataNumber = uint32(JSONParserLib.parseUint(val));
evaluationFound = true;
}
if (versionFound) {
allFound =
(tcbTypeFound && fmspcFound && issueDateFound && nextUpdateFound && pceidFound && evaluationFound);
if (tcbInfo.version >= 3) {
allFound = allFound && idFound;
}
if (allFound) {
break;
}
}
}
if (!allFound) {
revert TCBInfo_Invalid();
}
}

automata-on-chain-pccs/src/bases/PcsDao.sol

Lines 158 to 224 in 3c00165

function _validatePcsCert(CA ca, bytes calldata cert) private view returns (bytes32 hash) {
X509Helper x509Lib = X509Helper(x509);
// Step 1: Check whether cert has expired
bool notExpired = x509Lib.certIsNotExpired(cert);
if (!notExpired) {
revert Certificate_Expired();
}
// Step 2: Check issuer and subject common names are valid
string memory issuerName = x509Lib.getIssuerCommonName(cert);
string memory subjectName = x509Lib.getSubjectCommonName(cert);
string memory expectedIssuer = ROOT_CA_COMMON_NAME;
string memory expectedSubject;
if (ca == CA.PLATFORM) {
expectedSubject = PCK_PLATFORM_CA_COMMON_NAME;
} else if (ca == CA.PROCESSOR) {
expectedSubject = PCK_PROCESSOR_CA_COMMON_NAME;
} else if (ca == CA.SIGNING) {
expectedSubject = SIGNING_COMMON_NAME;
} else if (ca == CA.ROOT) {
expectedSubject = ROOT_CA_COMMON_NAME;
}
if (!LibString.eq(issuerName, expectedIssuer)) {
revert Invalid_Issuer_Name();
}
if (!LibString.eq(subjectName, expectedSubject)) {
revert Invalid_Subject_Name();
}
// Step 3: Check Revocation Status
bytes memory rootCrlData = getAttestedData(pcsCrlAttestations[CA.ROOT]);
if (ca == CA.ROOT) {
bytes memory pubKey = x509Lib.getSubjectPublicKey(cert);
if (keccak256(pubKey) != ROOT_CA_PUBKEY_HASH) {
revert Root_Key_Mismatch();
}
} else if (rootCrlData.length > 0) {
uint256 serialNum = x509Lib.getSerialNumber(cert);
bool revoked = crlLib.serialNumberIsRevoked(serialNum, rootCrlData);
if (revoked) {
revert Certificate_Revoked(ca, serialNum);
}
}
// Step 4: Check signature
bytes memory rootCert = _getIssuer(CA.ROOT);
(bytes memory tbs, bytes memory signature) = x509Lib.getTbsAndSig(cert);
bytes32 digest = sha256(tbs);
bool sigVerified;
if (ca == CA.ROOT) {
// the root certificate is issued by its own key
sigVerified = verifySignature(digest, signature, cert);
} else if (rootCert.length > 0) {
sigVerified = verifySignature(digest, signature, rootCert);
} else {
// all other certificates should already have an iusuer configured
revert Missing_Issuer();
}
if (!sigVerified) {
revert Invalid_Signature();
}
hash = keccak256(tbs);
}

automata-on-chain-pccs/src/helpers/EnclaveIdentityHelper.sol

Lines 68 to 118 in 3c00165

function _parseIdentity(string calldata identityStr) private pure returns (IdentityObj memory identity) {
JSONParserLib.Item memory root = JSONParserLib.parse(identityStr);
JSONParserLib.Item[] memory identityObj = root.children();
for (uint256 i = 0; i < root.size(); i++) {
JSONParserLib.Item memory current = identityObj[i];
string memory decodedKey = JSONParserLib.decodeString(current.key());
if (decodedKey.eq("issueDate")) {
identity.issueDateTimestamp =
uint64(DateTimeUtils.fromISOToTimestamp(JSONParserLib.decodeString(current.value())));
} else if (decodedKey.eq("nextUpdate")) {
identity.nextUpdateTimestamp =
uint64(DateTimeUtils.fromISOToTimestamp(JSONParserLib.decodeString(current.value())));
} else if (decodedKey.eq("id")) {
string memory idStr = JSONParserLib.decodeString(current.value());
if (LibString.eq(idStr, "QE")) {
identity.id = EnclaveId.QE;
} else if (LibString.eq(idStr, "QVE")) {
identity.id = EnclaveId.QVE;
} else if (LibString.eq(idStr, "TD_QE")) {
identity.id = EnclaveId.TD_QE;
} else {
revert Invalid_ID();
}
} else if (decodedKey.eq("version")) {
identity.version = uint32(JSONParserLib.parseUint(current.value()));
} else if (decodedKey.eq("tcbEvaluationDataNumber")) {
identity.tcbEvaluationDataNumber = uint32(JSONParserLib.parseUint(current.value()));
} else if (decodedKey.eq("miscselect")) {
uint256 val = JSONParserLib.parseUintFromHex(JSONParserLib.decodeString(current.value()));
identity.miscselect = bytes4(uint32(val));
} else if (decodedKey.eq("miscselectMask")) {
uint256 val = JSONParserLib.parseUintFromHex(JSONParserLib.decodeString(current.value()));
identity.miscselectMask = bytes4(uint32(val));
} else if (decodedKey.eq("attributes")) {
uint256 val = JSONParserLib.parseUintFromHex(JSONParserLib.decodeString(current.value()));
identity.attributes = bytes16(uint128(val));
} else if (decodedKey.eq("attributesMask")) {
uint256 val = JSONParserLib.parseUintFromHex(JSONParserLib.decodeString(current.value()));
identity.attributesMask = bytes16(uint128(val));
} else if (decodedKey.eq("mrsigner")) {
uint256 val = JSONParserLib.parseUintFromHex(JSONParserLib.decodeString(current.value()));
identity.mrsigner = bytes32(val);
} else if (decodedKey.eq("isvprodid")) {
identity.isvprodid = uint16(JSONParserLib.parseUint(current.value()));
} else if (decodedKey.eq("tcbLevels")) {
identity.tcb = _parseTcb(current.value());
}
}
}

automata-on-chain-pccs/src/helpers/FmspcTcbHelper.sol

Lines 390 to 448 in 3c00165

function _parseTdxModuleIdentities(JSONParserLib.Item[] memory tdxModuleIdentitiesArr)
private
pure
returns (TDXModuleIdentity[] memory identities)
{
uint256 n = tdxModuleIdentitiesArr.length;
identities = new TDXModuleIdentity[](n);
for (uint256 i = 0; i < n; i++) {
JSONParserLib.Item[] memory currIdentity = tdxModuleIdentitiesArr[i].children();
for (uint256 j = 0; j < tdxModuleIdentitiesArr[i].size(); j++) {
string memory key = JSONParserLib.decodeString(currIdentity[j].key());
if (key.eq("id")) {
string memory val = JSONParserLib.decodeString(currIdentity[j].value());
identities[i].id = val;
}
if (key.eq("mrsigner")) {
string memory val = JSONParserLib.decodeString(currIdentity[j].value());
identities[i].mrsigner = _getMrSignerHex(val);
}
if (key.eq("attributes")) {
string memory val = JSONParserLib.decodeString(currIdentity[j].value());
identities[i].attributes = bytes8(uint64(JSONParserLib.parseUintFromHex(val)));
}
if (key.eq("attributesMask")) {
string memory val = JSONParserLib.decodeString(currIdentity[j].value());
identities[i].attributesMask = bytes8(uint64(JSONParserLib.parseUintFromHex(val)));
}
if (key.eq("tcbLevels")) {
JSONParserLib.Item[] memory tcbLevelsArr = currIdentity[j].children();
uint256 x = tcbLevelsArr.length;
identities[i].tcbLevels = new TDXModuleTCBLevelsObj[](x);
for (uint256 k = 0; k < x; k++) {
JSONParserLib.Item[] memory tcb = tcbLevelsArr[k].children();
for (uint256 l = 0; l < tcb.length; l++) {
key = JSONParserLib.decodeString(tcb[l].key());
if (key.eq("tcb")) {
JSONParserLib.Item[] memory isvsvnObj = tcb[l].children();
key = JSONParserLib.decodeString(isvsvnObj[0].key());
if (key.eq("isvsvn")) {
identities[i].tcbLevels[k].isvsvn =
uint8(JSONParserLib.parseUint(isvsvnObj[0].value()));
} else {
revert TCBInfo_Invalid();
}
}
if (key.eq("tcbDate")) {
identities[i].tcbLevels[k].tcbDateTimestamp =
uint64(DateTimeUtils.fromISOToTimestamp(JSONParserLib.decodeString(tcb[l].value())));
}
if (key.eq("tcbStatus")) {
identities[i].tcbLevels[k].status =
_getTcbStatus(JSONParserLib.decodeString(tcb[l].value()));
}
}
}
}
}
}
}

dead-code

Impact: Informational
Confidence: Medium

automata-on-chain-pccs/src/bases/PckDao.sol

Lines 221 to 225 in 3c00165

function _checkPckIsRevocable(CA ca, bytes memory pck) internal view pckCACheck(ca) returns (bool revocable) {
uint256 serialNumber = pckLib.getSerialNumber(pck);
bytes memory crlData = getAttestedData(Pcs.pcsCrlAttestations(ca));
revocable = crlLib.serialNumberIsRevoked(serialNumber, crlData);
}

solc-version

Impact: Informational
Confidence: High

  • ID-57
    Version constraint >=0.8.0 contains known severe issues (https://solidity.readthedocs.io/en/latest/bugs.html)
    • FullInlinerNonExpressionSplitArgumentEvaluationOrder
    • MissingSideEffectsOnSelectorAccess
    • AbiReencodingHeadOverflowWithStaticArrayCleanup
    • DirtyBytesArrayToStorage
    • DataLocationChangeInInternalOverride
    • NestedCalldataArrayAbiReencodingSizeValidation
    • SignedImmutables
    • ABIDecodeTwoDimensionalArrayMemory
    • KeccakCaching.
      It is used by:
    • >=0.8.0

automata-on-chain-pccs/src/bases/DaoBase.sol

Line 2 in 3c00165

pragma solidity >=0.8.0;

automata-on-chain-pccs/src/Common.sol

Line 2 in 3c00165

pragma solidity ^0.8.0;

low-level-calls

Impact: Informational
Confidence: High

automata-on-chain-pccs/src/utils/P256Verifier.sol

Lines 14 to 30 in 3c00165

function ecdsaVerify(bytes32 messageHash, bytes memory signature, bytes memory key)
internal
view
returns (bool verified)
{
bytes memory args = abi.encode(
messageHash,
uint256(bytes32(signature.substring(0, 32))),
uint256(bytes32(signature.substring(32, 32))),
uint256(bytes32(key.substring(0, 32))),
uint256(bytes32(key.substring(32, 32)))
);
(bool success, bytes memory ret) = P256_VERIFIER.staticcall(args);
assert(success); // never reverts, always returns 0 or 1
verified = abi.decode(ret, (uint256)) == 1;
}

missing-inheritance

Impact: Informational
Confidence: High

automata-on-chain-pccs/src/automata_pccs/shared/AutomataDaoStorage.sol

Lines 6 to 49 in 3c00165

contract AutomataDaoStorage is Ownable {
mapping(address => bool) _authorized;
mapping(bytes32 attId => bytes attData) _pccsData;
modifier onlyAuthorized(address dao) {
require(_authorized[dao], "Unauthorized caller");
_;
}
constructor() {
_initializeOwner(msg.sender);
}
function updateDao(address _pcsDao, address _pckDao, address _fmspcTcbDao, address _enclaveIdDao)
external
onlyOwner
{
_updateDao(_pcsDao, _pckDao, _fmspcTcbDao, _enclaveIdDao);
}
function revokeDao(address revoked) external onlyOwner {
_authorized[revoked] = false;
}
function writeToPccs(bytes32 attId, bytes memory attData) external onlyAuthorized(msg.sender) {
_pccsData[attId] = attData;
}
function deleteData(bytes32 attId) external onlyAuthorized(msg.sender) {
delete _pccsData[attId];
}
function readPccs(bytes32 attId) external view returns (bytes memory attData) {
attData = _pccsData[attId];
}
function _updateDao(address _pcsDao, address _pckDao, address _fmspcTcbDao, address _enclaveIdDao) private {
_authorized[_pcsDao] = true;
_authorized[_pckDao] = true;
_authorized[_fmspcTcbDao] = true;
_authorized[_enclaveIdDao] = true;
}
}

naming-convention

Impact: Informational
Confidence: High

automata-on-chain-pccs/src/automata_pccs/shared/AutomataDaoStorage.sol

Line 20 in 3c00165

function updateDao(address _pcsDao, address _pckDao, address _fmspcTcbDao, address _enclaveIdDao)

automata-on-chain-pccs/src/automata_pccs/AutomataFmspcTcbDao.sol

Line 17 in 3c00165

function setPcs(address _pcs) external onlyOwner {

automata-on-chain-pccs/src/bases/FmspcTcbDao.sol

Line 27 in 3c00165

PcsDao public Pcs;

automata-on-chain-pccs/src/automata_pccs/shared/AutomataDaoStorage.sol

Line 20 in 3c00165

function updateDao(address _pcsDao, address _pckDao, address _fmspcTcbDao, address _enclaveIdDao)

automata-on-chain-pccs/src/automata_pccs/AutomataPcsDao.sol

Line 14 in 3c00165

function updateDeps(address _x509, address _crl) external onlyOwner {

automata-on-chain-pccs/src/utils/Asn1Decode.sol

Line 27 in 3c00165

function getPtr(uint256 _ixs, uint256 _ixf, uint256 _ixl) internal pure returns (uint256) {

automata-on-chain-pccs/src/bases/EnclaveIdentityDao.sol

Line 22 in 3c00165

EnclaveIdentityHelper public EnclaveIdentityLib;

automata-on-chain-pccs/src/utils/Asn1Decode.sol

Line 27 in 3c00165

function getPtr(uint256 _ixs, uint256 _ixf, uint256 _ixl) internal pure returns (uint256) {

automata-on-chain-pccs/src/bases/PckDao.sol

Line 37 in 3c00165

PcsDao public Pcs;

automata-on-chain-pccs/src/bases/FmspcTcbDao.sol

Line 28 in 3c00165

FmspcTcbHelper public FmspcTcbLib;

automata-on-chain-pccs/src/utils/BytesUtils.sol

Lines 277 to 278 in 3c00165

bytes constant base32HexTable =
hex"00010203040506070809FFFFFFFFFFFFFF0A0B0C0D0E0F101112131415161718191A1B1C1D1E1FFFFFFFFFFFFFFFFFFFFF0A0B0C0D0E0F101112131415161718191A1B1C1D1E1F";

automata-on-chain-pccs/src/bases/EnclaveIdentityDao.sol

Line 21 in 3c00165

PcsDao public Pcs;

automata-on-chain-pccs/src/automata_pccs/AutomataPckDao.sol

Line 17 in 3c00165

function updateDeps(address _pcs, address _x509, address _crl) external onlyOwner {

automata-on-chain-pccs/src/utils/Asn1Decode.sol

Line 27 in 3c00165

function getPtr(uint256 _ixs, uint256 _ixf, uint256 _ixl) internal pure returns (uint256) {

automata-on-chain-pccs/src/automata_pccs/AutomataPckDao.sol

Line 17 in 3c00165

function updateDeps(address _pcs, address _x509, address _crl) external onlyOwner {

automata-on-chain-pccs/src/automata_pccs/AutomataPckDao.sol

Line 17 in 3c00165

function updateDeps(address _pcs, address _x509, address _crl) external onlyOwner {

automata-on-chain-pccs/src/automata_pccs/AutomataEnclaveIdentityDao.sol

Line 17 in 3c00165

function setPcs(address _pcs) external onlyOwner {

automata-on-chain-pccs/src/automata_pccs/shared/AutomataDaoStorage.sol

Line 20 in 3c00165

function updateDao(address _pcsDao, address _pckDao, address _fmspcTcbDao, address _enclaveIdDao)

automata-on-chain-pccs/src/automata_pccs/AutomataPcsDao.sol

Line 14 in 3c00165

function updateDeps(address _x509, address _crl) external onlyOwner {

automata-on-chain-pccs/src/automata_pccs/shared/AutomataDaoStorage.sol

Line 20 in 3c00165

function updateDao(address _pcsDao, address _pckDao, address _fmspcTcbDao, address _enclaveIdDao)

too-many-digits

Impact: Informational
Confidence: Medium

automata-on-chain-pccs/src/bases/DaoBase.sol

Lines 28 to 50 in 3c00165

function _parseUintFromHex(string memory s) internal pure returns (uint256 result) {
/// @solidity memory-safe-assembly
assembly {
let n := mload(s)
// Skip two if starts with '0x' or '0X'.
let i := shl(1, and(eq(0x3078, or(shr(240, mload(add(s, 0x20))), 0x20)), gt(n, 1)))
for {} 1 {} {
i := add(i, 1)
let c :=
byte(
and(0x1f, shr(and(mload(add(s, i)), 0xff), 0x3e4088843e41bac000000000000)),
0x3010a071000000b0104040208000c05090d060e0f
)
n := mul(n, iszero(or(iszero(c), shr(252, result))))
result := add(shl(4, result), sub(c, 1))
if iszero(lt(i, n)) { break }
}
if iszero(n) {
mstore(0x00, 0x10182796) // `ParsingFailed()`.
revert(0x1c, 0x04)
}
}
}

automata-on-chain-pccs/src/utils/BytesUtils.sol

Lines 204 to 210 in 3c00165

function readBytes20(bytes memory self, uint256 idx) internal pure returns (bytes20 ret) {
require(idx + 20 <= self.length);
assembly {
ret :=
and(mload(add(add(self, 32), idx)), 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF000000000000000000000000)
}
}

immutable-states

Impact: Optimization
Confidence: High

automata-on-chain-pccs/src/bases/FmspcTcbDao.sol

Line 28 in 3c00165

FmspcTcbHelper public FmspcTcbLib;

automata-on-chain-pccs/src/bases/PckDao.sol

Line 38 in 3c00165

PCKHelper public pckLib;

automata-on-chain-pccs/src/automata_pccs/shared/AutomataDaoBase.sol

Line 16 in 3c00165

IAutomataDaoStorage pccsStorage;

automata-on-chain-pccs/src/bases/SigVerifyBase.sol

Line 12 in 3c00165

address public x509;

automata-on-chain-pccs/src/bases/EnclaveIdentityDao.sol

Line 22 in 3c00165

EnclaveIdentityHelper public EnclaveIdentityLib;

@preston4896 preston4896 merged commit 3a4063d into main Sep 26, 2024
2 checks passed
@preston4896 preston4896 deleted the holesky branch September 26, 2024 09:56
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Reviewers
No reviews
Assignees
No one assigned
Labels
None yet
Projects
None yet
Milestone
No milestone
Development

Successfully merging this pull request may close these issues.
1 participant
@preston4896