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Git CMD erroneously executes `doskey.exe` in the current directory, if it exists

High
vdye published GHSA-gq5x-v87v-8f7g Apr 25, 2023

Package

git-for-windows (-)

Affected versions

<2.40.1

Patched versions

2.40.1

Description

Impact

Any user of Git CMD who starts the command in an untrusted directory is impacted: Maliciously-placed doskey.exe would be executed silently upon running Git CMD.

Patches

The problem has been patched in Git for Windows v2.40.1.

Workarounds

Avoid using Git CMD. If using Git CMD, avoid starting it in an untrusted directory.

References

Similar vulnerabilities:

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
Local
Attack complexity
High
Privileges required
High
User interaction
Required
Scope
Changed
Confidentiality
High
Integrity
High
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:L/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H

CVE ID

CVE-2023-29012

Weaknesses

Uncontrolled Search Path Element

The product uses a fixed or controlled search path to find resources, but one or more locations in that path can be under the control of unintended actors. Learn more on MITRE.

Credits