#VU18413 Out-of-bounds read in Tildeslash Monit - CVE-2019-11455

Vulnerability identifier: #VU18413

Vulnerability risk: Low

CVSSv4.0: 1.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2019-11455

CWE-ID: CWE-125

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Tildeslash Monit
Web applications / Remote management & hosting panels

Vendor: Atlassian

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition when processing parameters passed via HTTP GET or POST requests within the Util_urlDecode() function in util.c. A remote authenticated attacker can send a specially crafted HTTP request to the affected application, trigger out-of-bounds read error and read contents of memory.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Tildeslash Monit: 5.7 - 5.25.2

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External links
https://bitbucket.org/tildeslash/monit/commits/f12d0cdb42d4e74dffe1525d4062c815c48ac57a
https://github.com/dzflack/exploits/blob/master/macos/monit_dos.py
https://github.com/dzflack/exploits/blob/master/unix/monit_buffer_overread.py
https://lists.debian.org/debian-lts-announce/2019/04/msg00028.html
https://usn.ubuntu.com/3971-1/

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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.