CVE-2024-52005

CVE-2024-52005 is a vulnerability in Git, a widely used source code management tool, stemming from improper handling of informational and error messages transmitted via the sideband channel during operations like cloning, fetching, or pushing from a remote server. These messages, prefixed with "remote:", are printed directly to the client's standard error output, which is typically connected to a terminal supporting ANSI escape sequences. Git previously lacked protections against these sequences, allowing malicious control sequences to be embedded in the messages.

The vulnerability can be exploited by an attacker controlling a remote Git server or repository. A victim running Git commands against this malicious remote would receive crafted "remote:" messages on their terminal, enabling the attacker to hide or misrepresent information or trick the user into executing untrusted scripts. Exploitation requires user interaction (UI:R), occurs over the network with low complexity and no privileges (AV:N/AC:L/PR:N), and results in high confidentiality, integrity, and availability impacts (C:H/I:H/A:H), as scored at CVSS 3.1 8.8. It is associated with CWE-116 (Improper Encoding or Escaping of Output) and CWE-150 (Improper Neutralization of Escape, Meta, or Control Sequences).

The Git security advisory (GHSA-7jjc-gg6m-3329) and related public mailing list discussions note that patches are under review on the git-security mailing list as requested for transparency. Users should update Git as soon as patches are available. Those unable to upgrade are advised to avoid recursive clones unless from trusted sources.