CVE-2019-20104 — HIGH (7.5)

Q: How severe is CVE-2019-20104?

CVE-2019-20104 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2019-20104?

Check the references section above for vendor advisories and patch information. Affected products include: Atlassian Crowd.

Vulnerability Description

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.

CVSS Score

7.5

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Atlassian	Crowd	< 3.2.11

Related Weaknesses (CWE)

CWE-776

References

https://jira.atlassian.com/browse/CWD-5526Vendor Advisory
https://zeroauth.ltd/blog/2020/02/07/cve-2019-20104-atlassian-crowd-openid-clienExploitTechnical Description
https://jira.atlassian.com/browse/CWD-5526Vendor Advisory
https://zeroauth.ltd/blog/2020/02/07/cve-2019-20104-atlassian-crowd-openid-clienExploitTechnical Description

FAQ

What is CVE-2019-20104?

CVE-2019-20104 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 vul...

How severe is CVE-2019-20104?

CVE-2019-20104 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2019-20104?

Check the references section above for vendor advisories and patch information. Affected products include: Atlassian Crowd.