Session Token Identifier Collision in Atlassian Crowd
CVE-2017-18106

7.5HIGH

Key Information:

Vendor

Atlassian
Status
Crowd
Vendor
CVE Published:
29 March 2019

What is CVE-2017-18106?

A vulnerability in Atlassian Crowd allows an attacker to exploit session token identifiers. If an attacker authenticates to Crowd or an associated application, they may manipulate their identifier_hash to collide with that of another user. This collision could enable unauthorized access to another user's session, exposing sensitive information and compromising user accounts.

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Affected Version(s)

Crowd < 2.9.1

References

https://jira.atlassian.com/browse/CWD-5061
x_refsource_MISC

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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