#VU23554 Path traversal in Git - CVE-2019-1348

Vulnerability identifier: #VU23554

Vulnerability risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2019-1348

CWE-ID: CWE-22

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Git
Client/Desktop applications / Software for system administration

Vendor: Git

Description

The vulnerability allows a remote attacker to perform directory traversal attacks.

The vulnerability exists due to input validation error when the export-marks option of git fast-import is exposed also via the in-stream command feature. A remote attacker can send a specially crafted HTTP request and overwrite arbitrary paths on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Git: 2.14.0 - 2.19.2, 2.20.0 - 2.24.0

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External links
https://groups.google.com/forum/?fromgroups#!topic/git-packagers/AWRBO_5gqa4

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.