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TI-2017-12404 Aliases CVE-2017-16858GHSA-p3gx-g437-gw6c

Incorrect authorization in Atlassian Crowd

Priority LOW 31CWE-863Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
High
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · None
Fix status
No fix listed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-863.

Summary

The 'crowd-application' plugin module (notably used by the Google Apps plugin) in Atlassian Crowd from version 1.5.0 before version 3.1.2 allowed an attacker to impersonate a Crowd user in REST requests by being able to authenticate to a directory bound to an application using the feature. Given the following situation: the Crowd application is bound to directory 1 and has a user called admin and the Google Apps application is bound to directory 2, which also has a user called admin, it was possible to authenticate REST requests using the credentials of the user coming from directory 2 and impersonate the user from directory 1.

Why it matters now

EPSS 0.00566 47th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
AtlassianCrowdfrom 1.5.0 before 3.1.2—No fix listedCNA
  • Crowd VendorAtlassian Affected from 1.5.0 before 3.1.2 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:atlassian:crowd:*:*:*:*:*:*:*:*1.5.0 to before 3.1.2VulnerableAtlassian
  • cpe:2.3:a:atlassian:crowd:*:*:*:*:*:*:*:* Versions 1.5.0 to before 3.1.2 Vulnerable ·Atlassian

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2017-16858
  2. 2026-10-03 Alias added: GHSA-p3gx-g437-gw6c

References

Advisory 1

  • TI-2019-08653 Atlassian Crowd and Crowd Data Center had the pdkinstall development plugin incorrectly… KEVCVSS 3.1CRITICAL 9.8
  • TI-2026-67904 Arbitrary file access in Atlassian Data Center products KEVCVSS 4.0CRITICAL 9.3
  • TI-2012-02540 Atlassian JIRA before 5.0.1; Confluence before 3.5.16, 4.0 before 4.0.7, and 4.1 before… CVSS 3.1CRITICAL 9.1
  • TI-2022-09598 Improper authentication in Atlassian Bamboo Server CVSS 3.1CRITICAL 9.8
  • TI-2022-21516 Affected versions of Atlassian Crowd allow an attacker to authenticate as the crowd… CVSS 3.1CRITICAL 9.8
  • TI-2016-05568 The LDAP directory connector in Atlassian Crowd before 2.8.8 and 2.9.x before 2.9.5… CVSS 3.0CRITICAL 9.8
See all 24 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences