CyberRota Analysis
AI-GeneratedThe built-in HTTP transport in libgit2 versions prior to 1.8.6 and 1.9.5 is vulnerable to credential disclosure due to improper handling of redirects, allowing attackers to exploit this flaw if they control a trusted Git host or an open redirect. This vulnerability can lead to the exposure of sensitive HTTP Basic credentials and personal access tokens. Organizations using affected versions of libgit2 should prioritize upgrading to the patched versions to mitigate the risk of credential leakage.
Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
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Original NVD Description
libgit2 is a portable C implementation of the Git core methods provided as a linkable library with a solid API, allowing to build Git functionality into your application. Prior to 1.8.6 and 1.9.5, the built-in HTTP transport in src/libgit2/transports/http.c follows an offsite initial redirect, and handle_remote_auth and handle_auth pass transport->owner->url instead of transport->server.url to the credential callback when the redirected host returns 401 Unauthorized. A callback that scopes credentials to the original trusted URL can therefore return GIT_CREDENTIAL_USERPASS_PLAINTEXT credentials that libgit2 stores in transport->server.cred and sends as an Authorization header to the redirected host. An attacker who controls a trusted Git host or an open redirect on that host can disclose HTTP Basic credentials, personal access tokens, or equivalent credentials. This issue is fixed in versions 1.8.6 and 1.9.5.