Vulnerability identifier: #VU48175
Vulnerability risk: High
CVSSv3.1: 9.2 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:F/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-20
Exploitation vector: Network
Exploit availability: Yes
Vulnerable software:
Git LFS
Client/Desktop applications /
Software for system administration
Vendor: Git
Description
The vulnerability allows a remote user to compromise the affected system.
The vulnerability exists due to insufficient validation of files. A remote user can upload a specially crafted binary to the repository and execute arbitrary code on the system.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
Git LFS: 2.12.0
External links
http://seclists.org/fulldisclosure/2020/Nov/1
http://github.com/git-lfs/git-lfs/releases
http://legalhackers.com
http://legalhackers.com/advisories/Git-LFS-RCE-Exploit-CVE-2020-27955.html
http://exploitbox.io/vuln/Git-Git-LFS-RCE-Exploit-CVE-2020-27955.html
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability. However, a fully functional exploit for this vulnerability is available.