Input validation error in Pure-FTPd - CVE-2017-12170
Published: September 21, 2017 / Updated: August 8, 2020
Vulnerability identifier: #VU38215
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2017-12170
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: PureFTPd.org
Affected software:
Pure-FTPd
Pure-FTPd
Detailed vulnerability description
The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.
Downstream version 1.0.46-1 of pure-ftpd as shipped in Fedora was vulnerable to packaging error due to which the original configuration was ignored after update and service started running with default configuration. This has security implications because of overriding security-related configuration. This issue doesn't affect upstream version of pure-ftpd.
How to mitigate CVE-2017-12170
Install update from vendor's website.