SB2018010211 - Symlink traversal in Syncthing
Published: January 2, 2018 Updated: August 21, 2023
Security Bulletin ID
SB2018010211
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Link following (CVE-ID: CVE-2017-1000420)
CWE-ID: CWE-59 - Improper Link Resolution Before File Access ('Link Following')
CVSSv4: 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/E:U/U:Green
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.
Remediation
Install update from vendor's website.