Authentication Bypass in SAML SSO Apps for Atlassian Products
CVE-2021-37843

9.8CRITICAL

Key Information:

Vendor
Atlassian
Status
Saml Single Sign On
Vendor
CVE Published:
2 August 2021

Summary

This vulnerability allows a remote attacker to gain unauthorized access to user accounts in SAML SSO applications used by Atlassian products, merely by knowing the username. No additional authentication is needed, making it critical for organizations to patch affected versions of Jira, Confluence, Bitbucket, Bamboo, and Fisheye to safeguard against potential account compromises.

References

https://wiki.resolution.de/doc/saml-sso/5.0.x/all/securit...
x_refsource_MISC

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.