Vulnerability Monitor

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CVE-2022-36064

Shescape is a shell escape package for JavaScript. An Inefficient Regular Expression Complexity vulnerability impacts users that use Shescape to escape arguments for the Unix shells `Bash` and `Dash`, or any not-officially-supported Unix shell; and/or using the `escape` or `escapeAll` functions with the `interpolation` option set to `true`. An attacker can cause polynomial backtracking or quadratic runtime in terms of the input string length due to two Regular Expressions in Shescape that are vulnerable to Regular Expression Denial of Service (ReDoS). This bug has been patched in v1.5.10. For `Dash` only, this bug has been patched since v1.5.9. As a workaround, a maximum length can be enforced on input strings to Shescape to reduce the impact of the vulnerability. It is not recommended to try and detect vulnerable input strings, as the logic for this may end up being vulnerable to ReDoS itself.

Published

2022-09-06T21:15:08.697

Last Modified

2024-11-21T07:12:18.067

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 5.9 (MEDIUM)

Weaknesses

Type: Secondary
CWE-400
CWE-1333
Type: Primary
CWE-1333

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	shescape_project	shescape	< 1.5.10	Yes

References

https://github.com/ericcornelissen/shescape/pull/373 Issue Tracking, Patch, Third Party Advisory ([email protected])
https://github.com/ericcornelissen/shescape/releases/tag/v1.5.10 Release Notes, Third Party Advisory ([email protected])
https://github.com/ericcornelissen/shescape/security/advisories/GHSA-gp75-h7j6-5pv3 Exploit, Issue Tracking, Mitigation, Third Party Advisory ([email protected])
https://github.com/ericcornelissen/shescape/pull/373 Issue Tracking, Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/ericcornelissen/shescape/releases/tag/v1.5.10 Release Notes, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/ericcornelissen/shescape/security/advisories/GHSA-gp75-h7j6-5pv3 Exploit, Issue Tracking, Mitigation, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)