VULNERABILITY INTELLIGENCE

CVE-2017-18106

CVSS score7.5 HIGH
EPSS probability1.23%
CISA KEVNot currently listed
Published2019-03-29
Last modified2026-06-17
CVSS vectorCVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Description

The identifier_hash for a session token in Atlassian Crowd before version 2.9.1 could potentially collide with an identifier_hash for another user or a user in a different directory, this allows remote attackers who can authenticate to Crowd or an application using Crowd for authentication to gain access to another user's session provided they can make their identifier hash collide with another user's session identifier hash.

Weakness classification

  • CWE-287: Improper Authentication

Primary references