PT-2020-16266 · Zammad · Zammad

Published 2020-12-28 · Updated 2020-12-29 · CVE-2020-26029

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Name of the Vulnerable Software and Affected Versions Zammad versions prior to 3.4.1

Description An issue was discovered in the authorization checks for impersonation requests via the X-On-Behalf-Of header. The authorization checks are performed for the actual user and not the one given in the X-On-Behalf-Of header.

Recommendations For versions prior to 3.4.1, update to version 3.4.1 or later to resolve the issue. As a temporary workaround, consider restricting access to the impersonation feature via the X-On-Behalf-Of header until a patch is available.

Fix

Incorrect Authorization

Weakness Enumeration

CWE-863

Related Identifiers

CVE-2020-26029

Affected Products

Zammad

References · 6

• https://osv.dev/vulnerability/CVE-2020-26029 · Vendor Advisory
• https://zammad.com/news/security-advisory-zaa-2020-20 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-26029 · Security Note
• https://t.me/cibsecurity/21340 · Telegram Post
• https://t.me/cvenotify/7873 · Telegram Post
• https://t.me/cvenotify/7796 · Telegram Post