Authenticated command execution via git fetch arguments
Published Mar 21, 2022 · Updated Sep 16, 2024
Argument injection in Ungit before 1.5.20 allows remote authenticated users to execute arbitrary commands through the /api/fetch endpoint. The handler passes remote and ref request-body values as git fetch arguments without an option terminator, allowing a crafted --upload-pack value to select an attacker-controlled command. Access to an authenticated Ungit session and a valid repository path is required, and commands run with the Ungit server process's privileges.
Summary
What happened
Argument injection in Ungit before 1.5.20 allows remote authenticated users to execute arbitrary commands through the /api/fetch endpoint. The handler passes remote and ref request-body values as git fetch arguments without an option terminator, allowing a crafted --upload-pack value to select an attacker-controlled command. Access to an authenticated Ungit session and a valid repository path is required, and commands run with the Ungit server process's privileges.
The record
- CVE
- CVE-2022-25766
- Published
- Mar 21, 2022
- Updated
- Sep 16, 2024
- Vendor
- Ungit Project
- Product
- Ungit
- Classifications
- CWE-88, T1059
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Mar 21, 2022CVE publishedPublication date reported by the CVE source.
- Sep 16, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=unspecified <1.5.20
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- Snyk /api/fetch argument-injection proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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