Path traversal in Sympa - CVE-2018-1000550
Published: September 10, 2018
Vulnerability identifier: #VU14737
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2018-1000550
CWE-ID: CWE-22
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: sympa.org
Affected software:
Sympa
Sympa
Detailed vulnerability description
The vulnerability allows a remote attacker to create or modify files on the filesystem.
The vulnerability exists due to input validation error when processing directory traversal sequences in wwsympa.fcgi when editing templates. A remote authenticated attacker can send a specially crafted HTTP GET or POST request and edit or create files on the system outside the webroot directory.
How to mitigate CVE-2018-1000550
Install updates from vendor's website.