#VU51863 Input validation error in OTRS - CVE-2020-1765

Vulnerability identifier: #VU51863

Vulnerability risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2020-1765

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.

An improper control of parameters allows the spoofing of the from fields of the following screens: AgentTicketCompose, AgentTicketForward, AgentTicketBounce and AgentTicketEmailOutbound. This issue affects: ((OTRS)) Community Edition 5.0.x version 5.0.39 and prior versions; 6.0.x version 6.0.24 and prior versions. OTRS 7.0.x version 7.0.13 and prior versions.

Mitigation
Install update from vendor's website.

Vulnerable software versions

OTRS: 5.0.0 - 6.0.13

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External links
https://lists.opensuse.org/opensuse-security-announce/2020-04/msg00038.html
https://lists.opensuse.org/opensuse-security-announce/2020-09/msg00066.html
https://lists.opensuse.org/opensuse-security-announce/2020-09/msg00077.html
https://lists.debian.org/debian-lts-announce/2020/01/msg00027.html
https://otrs.com/release-notes/otrs-security-advisory-2020-01/

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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.