Debian DSA-3495-1 : xymon - security update

High Nessus Plugin ID 89046


The remote Debian host is missing a security-related update.


Markus Krell discovered that xymon, a network- and applications-monitoring system, was vulnerable to the following security issues :

- CVE-2016-2054 The incorrect handling of user-supplied input in the 'config' command can trigger a stack-based buffer overflow, resulting in denial of service (via application crash) or remote code execution.

- CVE-2016-2055 The incorrect handling of user-supplied input in the 'config' command can lead to an information leak by serving sensitive configuration files to a remote user.

- CVE-2016-2056 The commands handling password management do not properly validate user-supplied input, and are thus vulnerable to shell command injection by a remote user.

- CVE-2016-2057 Incorrect permissions on an internal queuing system allow a user with a local account on the xymon master server to bypass all network-based access control lists, and thus inject messages directly into xymon.

- CVE-2016-2058 Incorrect escaping of user-supplied input in status webpages can be used to trigger reflected cross-site scripting attacks.


Upgrade the xymon packages.

For the stable distribution (jessie), these problems have been fixed in version 4.3.17-6+deb8u1.

See Also

Plugin Details

Severity: High

ID: 89046

File Name: debian_DSA-3495.nasl

Version: 2.5

Type: local

Agent: unix

Published: 2016/03/01

Updated: 2019/07/15

Dependencies: 12634

Risk Information

Risk Factor: High

CVSS v2.0

Base Score: 7.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS v3.0

Base Score: 9.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:xymon, cpe:/o:debian:debian_linux:8.0

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2016/02/29

Vulnerability Publication Date: 2016/04/13

Exploitable With

Metasploit (Xymon useradm Command Execution)

Reference Information

CVE: CVE-2016-2054, CVE-2016-2055, CVE-2016-2056, CVE-2016-2057, CVE-2016-2058

DSA: 3495