Vulnerability identifier: #VU31198

Vulnerability risk: Low

CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-16586

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
OTRS
Web applications / Other software

Vendor: otrs.org

Description

The vulnerability allows a remote non-authenticated attacker to manipulate data.

In Open Ticket Request System (OTRS) 4.0.x before 4.0.32, 5.0.x before 5.0.30, and 6.0.x before 6.0.11, an attacker could send a malicious email to an OTRS system. If a logged in user opens it, the email could cause the browser to load external image or CSS resources.

Mitigation
Install update from vendor's website.

Vulnerable software versions

OTRS: 6.0.0 - 6.0.10

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External links
http://community.otrs.com/security-advisory-2018-05-security-update-for-otrs-framework/
http://github.com/OTRS/otrs/commit/09e80c7752b0d9080688e4597c7495dd109e0963
http://github.com/OTRS/otrs/commit/a808859a75c59ae3b7568f5cc4708c53462aa4c7
http://github.com/OTRS/otrs/commit/baa92df09145b8ae2702a3a0e85d8ba55ec96302
http://lists.debian.org/debian-lts-announce/2018/09/msg00033.html
http://www.debian.org/security/2018/dsa-4317

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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.