SB2020032731 - Cross-site scripting in OTRS

Description

This security bulletin contains information about 1 vulnerability.

1) Cross-site scripting (CVE-ID: CVE-2020-1771)

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

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Clear

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

Attacker is able craft an article with a link to the customer address book with malicious content (JavaScript). When agent opens the link, JavaScript code is executed due to the missing parameter encoding. This issue affects: ((OTRS)) Community Edition: 6.0.26 and prior versions. OTRS: 7.0.15 and prior versions.

Remediation

Install update from vendor's website.

References

• http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00038.html
• http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00066.html
• http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00077.html
• https://otrs.com/release-notes/otrs-security-advisory-2020-08/