CVE-2021-21237 – Git LFS can execute a Git binary from the current directory on Windows
https://notcve.org/view.php?id=CVE-2021-21237
Git LFS is a command line extension for managing large files with Git. On Windows, if Git LFS operates on a malicious repository with a git.bat or git.exe file in the current directory, that program would be executed, permitting the attacker to execute arbitrary code. This does not affect Unix systems. This is the result of an incomplete fix for CVE-2020-27955. This issue occurs because on Windows, Go includes (and prefers) the current directory when the name of a command run does not contain a directory separator. • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-27955 https://github.com/git-lfs/git-lfs/commit/fc664697ed2c2081ee9633010de0a7f9debea72a https://github.com/git-lfs/git-lfs/releases/tag/v2.13.2 https://github.com/git-lfs/git-lfs/security/advisories/GHSA-cx3w-xqmc-84g5 • CWE-426: Untrusted Search Path •
CVE-2017-17831
https://notcve.org/view.php?id=CVE-2017-17831
GitHub Git LFS before 2.1.1 allows remote attackers to execute arbitrary commands via an ssh URL with an initial dash character in the hostname, located on a "url =" line in a .lfsconfig file within a repository. GitHub Git LFS en versiones anteriores a la 2.1.1 permite que los atacantes remotos ejecuten comandos arbitrarios mediante una URL ssh con un carácter guión inicial en el nombre del host, que se encuentra en una línea "url =" en un archivo .lfsconfig dentro de un repositorio. • http://blog.recurity-labs.com/2017-08-10/scm-vulns http://www.securityfocus.com/bid/102926 https://confluence.atlassian.com/sourcetreekb/sourcetree-security-advisory-2018-01-24-942834324.html https://github.com/git-lfs/git-lfs/pull/2242 https://github.com/git-lfs/git-lfs/releases/tag/v2.1.1 • CWE-20: Improper Input Validation •