PT-2023-31559 · Zammad · Zammad

Published 2023-12-10 · Updated 2023-12-13 · CVE-2023-50455

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Zammad versions prior to 6.2.0

Description An issue was discovered due to a lack of rate limiting in the "email address verification" feature. This allows an attacker to send many requests for a known address, causing Denial Of Service by generating many emails, which would also spam the victim.

Recommendations For versions prior to 6.2.0, update to version 6.2.0 or later to resolve the issue. As a temporary workaround, consider implementing rate limiting on the "email address verification" feature to prevent abuse. Restrict access to this feature to minimize the risk of exploitation.

Fix

Allocation of Resources Without Limits

Weakness Enumeration

CWE-770

Related Identifiers

CVE-2023-50455

Affected Products

Zammad

References · 7

• https://zammad.com/en/advisories/zaa-2023-06 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-50455 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-50455 · Security Note
• https://twitter.com/CVEnew/status/1733927593043222941 · Twitter Post
• https://twitter.com/VulmonFeeds/status/1733963718600368145 · Twitter Post
• https://t.me/cvenotify/63526 · Telegram Post
• https://t.me/cvenotify/63121 · Telegram Post