CVE-2022-31179 : Shescape is a simple shell escape package for JavaScript. Versions prior to 1.5.

Shescape is a simple shell escape package for JavaScript. Versions prior to 1.5.8 were found to be subject to code injection on windows. This impacts users that use Shescape (any API function) to escape arguments for cmd.exe on Windows An attacker can omit all arguments following their input by including a line feed character (`'\n'`) in the payload. This bug has been patched in [v1.5.8] which you can upgrade to now. No further changes are required. Alternatively, line feed characters (`'\n'`) can be stripped out manually or the user input can be made the last argument (this only limits the impact).

Published 2022-08-01 20:15:08

Updated 2022-08-09 13:30:41

Source GitHub, Inc.

View at NVD, CVE.org

Products affected by CVE-2022-31179

Shescape Project » Shescape
Versions before (<) 1.5.8
cpe:2.3:a:shescape_project:shescape:*:*:*:*:*:*:*:*
Matching versions
When used together with: Microsoft » Windows » Version: N/A

Exploit prediction scoring system (EPSS) score for CVE-2022-31179

EPSS FAQ

0.27%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 68 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2022-31179

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
9.8	CRITICAL	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	3.9	5.9	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: High
8.1	HIGH	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:H	2.2	5.3	GitHub, Inc.
Attack Vector: Network Attack Complexity: High Privileges Required: None User Interaction: None Scope: Changed Confidentiality: Low Integrity: Low Availability: High

CWE ids for CVE-2022-31179

CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component.

Assigned by: security-advisories@github.com (Primary)

References for CVE-2022-31179

https://github.com/ericcornelissen/shescape/pull/332

Don't ignore newlines when fuzzing by ericcornelissen · Pull Request #332 · ericcornelissen/shescape · GitHub
Patch;Third Party Advisory
https://github.com/ericcornelissen/shescape/security/advisories/GHSA-jjc5-fp7p-6f8w

Insufficient escaping of line feeds for CMD · Advisory · ericcornelissen/shescape · GitHub
Exploit;Patch;Third Party Advisory
https://github.com/ericcornelissen/shescape/releases/tag/v1.5.8

Release Release v1.5.8 · ericcornelissen/shescape · GitHub
Release Notes;Third Party Advisory

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Vulnerability Details : CVE-2022-31179

Products affected by CVE-2022-31179

Exploit prediction scoring system (EPSS) score for CVE-2022-31179

CVSS scores for CVE-2022-31179

CWE ids for CVE-2022-31179

References for CVE-2022-31179