What is CVE-2017-18106?

CVE-2017-18106 is a high-severity vulnerability in Atlassian Crowd, classified under Improper Authentication. CVSS score: 7.5/10. Published 2019-03-29.

How severe is CVE-2017-18106?

High severity. CVSS v3 base score is 7.5 out of 10.

Auth bypass in Atlassian Crowd

CVE-2017-18106

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 Cro…

Vulnerability class: Broken Authentication

EPSS: 0.012 (65.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Atlassian Crowd — versions unspecified

Weakness classification (CWE)

CWE-287 — Improper Authentication

References

security@atlassian.com (x_refsource_MISC, Issue Tracking, Vendor Advisory)

Frequently asked questions

What is CVE-2017-18106?: CVE-2017-18106 is a high-severity vulnerability in Atlassian Crowd, classified under Improper Authentication. CVSS score: 7.5/10. Published 2019-03-29.
How severe is CVE-2017-18106?: High severity. CVSS v3 base score is 7.5 out of 10.