CVE-2023-40267 in GitPython
Summary
by MITRE • 08/11/2023
GitPython before 3.1.32 does not block insecure non-multi options in clone and clone_from. NOTE: this issue exists because of an incomplete fix for CVE-2022-24439.
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Analysis
by VulDB Data Team • 10/30/2024
GitPython versions prior to 3.1.32 contain a security vulnerability that fails to properly block insecure non-multi options during repository cloning operations. This vulnerability represents a regression in security controls that were previously implemented to address CVE-2022-24439, demonstrating the challenges of maintaining robust security measures in version control systems. The flaw specifically affects the clone and clone_from methods within the GitPython library, which are commonly used to create local copies of remote repositories. When users attempt to clone repositories using these methods, the library does not adequately validate or sanitize command-line options that could potentially introduce security risks.
The technical implementation of this vulnerability stems from incomplete input validation mechanisms within the GitPython codebase. The library's handling of git clone parameters fails to properly filter or reject certain non-multi options that could be exploited to execute arbitrary commands or access unauthorized resources. This occurs because the security controls introduced to address CVE-2022-24439 were not sufficiently comprehensive to cover all potential attack vectors, leaving gaps in the protection mechanism. The vulnerability allows attackers to pass malicious options through the clone process that could potentially lead to command injection or other privilege escalation scenarios.
The operational impact of this vulnerability extends beyond simple repository cloning operations and could affect any application that relies on GitPython for version control management. Attackers could exploit this weakness to execute unauthorized commands on systems where GitPython is used, particularly in environments where automated cloning operations occur. The vulnerability is particularly concerning in continuous integration/continuous deployment pipelines where repository cloning is a routine operation, as it could provide attackers with opportunities to compromise build systems or access sensitive code repositories. Organizations using GitPython in production environments may face risks to their software supply chain security and code integrity.
Security mitigations for this vulnerability require immediate upgrading to GitPython version 3.1.32 or later, which includes the comprehensive fix for both CVE-2022-24439 and the current issue. System administrators and developers should conduct thorough inventory checks to identify all systems using vulnerable GitPython versions and implement patch management procedures to ensure timely updates. The vulnerability aligns with CWE-78 and CWE-88 categories, representing command injection risks and improper neutralization of special elements used in argument lists. From an ATT&CK framework perspective, this vulnerability could be leveraged for initial access through supply chain compromise or privilege escalation techniques. Organizations should also consider implementing additional security controls such as code scanning for vulnerable dependencies and monitoring for suspicious cloning operations within their development environments.