Cross-site scripting in OTRS

1) Cross-site scripting

EUVDB-ID: #VU51872

Risk: Low

CVSSv4.0: 1.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-21434

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Exploit availability: No

Description

The vulnerability allows a remote privileged user to read and manipulate data.

Survey administrator can craft a survey in such way that malicious code can be executed in the agent interface (i.e. another agent who wants to make changes in the survey). This issue affects: OTRS AG Survey 6.0.x version 6.0.20 and prior versions; 7.0.x version 7.0.19 and prior versions.

Mitigation

Install update from vendor's website.

Vulnerable software versions

OTRS: 6.0.0 - 6.0.13

CPE2.3

• cpe:2.3:a:otrs_org:open_ticket_request_system:6.0.0:*:*:*:*:*:*:*
• cpe:2.3:a:otrs_org:open_ticket_request_system:6.0.1:*:*:*:*:*:*:*
• cpe:2.3:a:otrs_org:open_ticket_request_system:6.0.2:*:*:*:*:*:*:*

External links

https://otrs.com/release-notes/otrs-security-advisory-2021-01/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.