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XWiki vulnerable to Denial of Service attack through attachments

High severity GitHub Reviewed Published Jan 8, 2024 in xwiki/xwiki-platform • Updated Jan 9, 2024

Package

maven org.xwiki.platform:xwiki-platform-distribution-war (Maven)

Affected versions

>= 14.10, < 14.10.18
>= 15.0-rc-1, < 15.5.3
>= 15.6-rc-1, < 15.8-rc-1

Patched versions

14.10.18
15.5.3
15.8-rc-1

Description

Impact

A user able to attach a file to a page can post a malformed TAR file by manipulating file modification times headers, which when parsed by Tika, could cause a denial of service issue via CPU consumption.

Patches

This vulnerability has been patched in XWiki 14.10.18, 15.5.3 and 15.8 RC1.

Workarounds

The workaround is to download commons-compress 1.24 and replace the one located in XWiki WEB-INF/lib/ folder.

References

https://jira.xwiki.org/browse/XCOMMONS-2796

For more information

If you have any questions or comments about this advisory:

References

@tmortagne tmortagne published to xwiki/xwiki-platform Jan 8, 2024
Published to the GitHub Advisory Database Jan 8, 2024
Reviewed Jan 8, 2024
Published by the National Vulnerability Database Jan 9, 2024
Last updated Jan 9, 2024

Severity

High

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS score

0.046%
(18th percentile)

Weaknesses

CVE ID

CVE-2024-21651

GHSA ID

GHSA-8959-rfxh-r4j4

Source code

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