PT-2020-10340 · Atlassian · Crowd

Published 2020-02-06 · Updated 2022-01-01 · CVE-2019-20104

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 Atlassian Crowd versions prior to 3.6.2 Atlassian Crowd versions 3.7.0 through 3.7.0

Description The issue allows remote attackers to perform a Denial of Service attack via an XML Entity Expansion vulnerability in the OpenID client application.

Recommendations For versions prior to 3.6.2, update to version 3.6.2 or later. For versions 3.7.0, update to version 3.7.1 or later.

Exploit

Fix

XML Entity Expansion

Weakness Enumeration

CWE-776

Related Identifiers

CVE-2019-20104

Affected Products

Crowd

References · 5

• 🔥 https://zeroauth.ltd/blog/2020/02/07/cve-2019-20104-atlassian-crowd-openid-client-vulnerable-to-remote-dos-via-xml-entity-expansion · Exploit
• https://osv.dev/vulnerability/CVE-2019-20104 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2019-20104 · Security Note
• https://jira.atlassian.com/browse/CWD-5526 · Vendor Advisory
• https://t.me/cvenotify/826 · Telegram Post