CVE-2020-26233
7.3 · HIGHOverview
CVE-2020-26233 is a high-severity vulnerability affecting microsoft git_credential_manager_core. It was published on December 8, 2020 and has a CVSS 3.1 base score of 7.3 (HIGH).
This vulnerability has a CVSS 3.1 base score of 7.3, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
Technical Description
Git Credential Manager Core (GCM Core) is a secure Git credential helper built on .NET Core that runs on Windows and macOS. In Git Credential Manager Core before version 2.0.289, when recursively cloning a Git repository on Windows with submodules, Git will first clone the top-level repository and then recursively clone all submodules by starting new Git processes from the top-level working directory. If a malicious git.exe executable is present in the top-level repository then this binary will be started by Git Credential Manager Core when attempting to read configuration, and not git.exe as found on the %PATH%. This only affects GCM Core on Windows, not macOS or Linux-based distributions. GCM Core version 2.0.289 contains the fix for this vulnerability, and is available from the project's GitHub releases page. GCM Core 2.0.289 is also bundled in the latest Git for Windows release; version 2.29.2(3). As a workaround, users should avoid recursively cloning untrusted repositories with t
Remediation
Check the references section for vendor advisories and patches from microsoft. Update git_credential_manager_core to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| microsoft | git_credential_manager_core | >= 0, < 2.0.289 | Affected |
References
Frequently Asked Questions
What is CVE-2020-26233?
CVE-2020-26233 is a high-severity vulnerability affecting microsoft git_credential_manager_core. It was published on December 8, 2020 and has a CVSS 3.1 base score of 7.3 (HIGH).
How severe is CVE-2020-26233?
This vulnerability has a CVSS 3.1 base score of 7.3, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2020-26233?
Check the references section for vendor advisories and patches from microsoft. Update git_credential_manager_core to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2020-26233?
CyberStrike's AI-powered security agents can automatically detect CVE-2020-26233 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
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