Path traversal in GNU Xymon

1) Path traversal

EUVDB-ID: #VU42471

Risk: Medium

CVSSv3.1: 4.9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:U/RC:C]

CVE-ID: CVE-2013-4173

CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform directory traversal attacks.

The vulnerability exists due to input validation error when processing directory traversal sequences in the trend-data daemon (xymond_rrd) in Xymon 4.x before 4.3.12. A remote authenticated attacker can send a specially crafted HTTP request and remote attackers to delete arbitrary files via a . (dot dot) in the host name in a "drophost" command.

Mitigation

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

Xymon: 4.0 - 4.3.0

External links

http://sourceforge.net/projects/xymon/files/Xymon/4.3.12/
http://www.mandriva.com/security/advisories?name=MDVSA-2013:213
http://www.openwall.com/lists/oss-security/2013/07/27/3

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.