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Switcher Client contains Regular Expression Denial of Service (ReDoS)

High severity GitHub Reviewed Published Feb 2, 2023 in switcherapi/switcher-client-js • Updated Apr 21, 2023

Package

npm switcher-client (npm)

Affected versions

< 3.1.4

Patched versions

3.1.4

Description

Impact

Unsanitized input flows into Strategy match operation (EXIST), where it is used to build a regular expression. This may result in a Regular expression Denial of Service attack (reDOS).

Patches

Patched in 3.1.4

Workarounds

Avoid using Strategy settings that use REGEX in conjunction with EXIST and NOT_EXIST operations.

References

@petruki petruki published to switcherapi/switcher-client-js Feb 2, 2023
Published to the GitHub Advisory Database Feb 2, 2023
Reviewed Feb 2, 2023
Published by the National Vulnerability Database Feb 3, 2023
Last updated Apr 21, 2023

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

0.101%
(42nd percentile)

Weaknesses

CVE ID

CVE-2023-23925

GHSA ID

GHSA-wqxw-8h5g-hq56

Source code

Credits

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