CVE Vulnerability

CVE-2019-20104

The OpenID client application in Atlassian Crowd before version 3.6.2, and from version 3.7.0 before 3.7.1 allows remote attackers to perform a Denial of Service attack via an XML Entity Expansion vulnerability.

5 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 10 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

Scope

7.5 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://jira.atlassian.com/browse/CWD-5526 Vendor Advisory
https://zeroauth.ltd/blog/2020/02/07/cve-2019-20104-atlassian-crowd-openid-client-vulnerable-to-remote-dos-via-xml-entity-expansion/ Exploit Technical Description
Configurations

Configuration 1

cpe:2.3:a:atlassian:crowd:*:*:*:*:*:*:*:*
cpe:2.3:a:atlassian:crowd:*:*:*:*:*:*:*:*
cpe:2.3:a:atlassian:crowd:*:*:*:*:*:*:*:*
cpe:2.3:a:atlassian:crowd:*:*:*:*:*:*:*:*
cpe:2.3:a:atlassian:crowd:*:*:*:*:*:*:*:*
cpe:2.3:a:atlassian:crowd:*:*:*:*:*:*:*:*
cpe:2.3:a:atlassian:crowd:*:*:*:*:*:*:*:*
Information

Published : 2020-02-06 03:15

Updated : 2022-01-01 07:56

NVD link : CVE-2019-20104

Mitre link : CVE-2019-20104

Products Affected
No products.
CWE
CWE-776

Improper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion')