VULNERABILITY INTELLIGENCE

CVE-2017-16858

CVSS score6.8 MEDIUM
EPSS probability0.57%
CISA KEVNot currently listed
Published2018-01-31
Last modified2026-06-17
CVSS vectorCVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N

Description

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.

Weakness classification

  • CWE-287: Improper Authentication
  • CWE-863: Incorrect Authorization

Primary references