Link following in syncthing - CVE-2017-1000420
Published: August 21, 2023
Vulnerability identifier: #VU79773
CSH Severity: Medium
CVSS v4: 7.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2017-1000420
CWE-ID: CWE-59
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to overwrite arbitrary files on the system.
The vulnerability exists due to a symlink following issue. A remote user can pass a specially crafted file to the application and overwrite arbitrary files on the system.
Affected software
syncthing
How to mitigate CVE-2017-1000420
Install updates from vendor's website.
syncthing - update to 0.14.34