Link following in Mercurial - CVE-2017-1000115

 

Link following in Mercurial - CVE-2017-1000115

Published: October 5, 2017 / Updated: July 18, 2020


Vulnerability identifier: #VU31407
CSH Severity: Medium
CVSS v4.0: 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-2017-1000115
CWE-ID: CWE-59
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: Mercurial
Affected software:
Mercurial

Detailed vulnerability description

The vulnerability allows a remote non-authenticated attacker to manipulate data.

Mercurial prior to version 4.3 is vulnerable to a missing symlink check that can malicious repositories to modify files outside the repository


How to mitigate CVE-2017-1000115

Install update from vendor's website.

Sources