Vulnerability Report

CVE-2022-35954

Title: Arbitrary variable assignment in GitHub Actions ToolKit

Arbitrary Variable Assignment

Proof Of Concept

No public PoC currently indexed for CVE-2022-35954.

CWE Category CWE-74
Published Date Aug 15, 2022
Modified Date Nov 21, 2024
Exploit Status Not Found
Score 5.0 CVSS v3.1
Exploit Probability (EPSS)
0.65%

Vulnerability Summary

CVE-2022-35954: The GitHub Actions ToolKit provides a set of packages to make creating actions easier. The `core.exportVariable` function uses a well known delimiter that attackers can use to break out of that specific variable and assign values to other arbitrary variables. Workflows that write untrusted values to the `GITHUB_ENV` file may cause the path or other environment variables to be modified without the intention of the workflow or action author. Users should upgrade to `@actions/core v1.9.1`. If you are unable to upgrade the `@actions/core` package, you can modify your action to ensure that any user input does not contain the delimiter `_GitHubActionsFileCommandDelimeter_` before calling `core.exportVariable`.

Impacted Vendors

P
percona 1
G
github 1

Reference Links

https://github.com/actions/toolkit/commit/4beda9cbc00ba6eefe387a937c21087ccb8ee9df https://github.com/actions/toolkit/security/advisories/GHSA-7r3h-m5j6-3q42 https://github.com/actions/toolkit/commit/4beda9cbc00ba6eefe387a937c21087ccb8ee9df https://github.com/actions/toolkit/security/advisories/GHSA-7r3h-m5j6-3q42
CVSS v3.1
Source Entity [email protected]
Severity MEDIUM
5.0
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
CHANGED
RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:N
CVSS v3.1
Source Entity [email protected]
Severity MEDIUM
5.0
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
CHANGED
RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:N

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2022-35954 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

MODIFIED

Vulnerability data or affected products updated.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector NETWORK
Complexity LOW
Privileges N/A
Interaction NONE
CVSS Vector String CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:N

Affected Stack

No specific products linked.