#VU21060 Stack-based buffer overflow in Xymon
Vulnerability identifier: #VU21060
Vulnerability risk: Medium
CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-121
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
Xymon
Web applications /
Remote management & hosting panels
Vendor: GNU
Description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error when processing a long hostname or service parameter in history.c within the in the history viewer component. A remote authenticated attacker can trigger stack-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Mitigation
Install update from vendor's website.
Vulnerable software versions
Xymon: 4.3.0 - 4.3.28
External links
http://github.com/svn2github/xymon/blob/master/branches/4.3.28/web/history.c
http://lists.debian.org/debian-lts-announce/2019/08/msg00032.html
http://lists.xymon.com/archive/2019-July/046570.html
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
