CVE-2021-4201

Pre-authentication session hijacking

Description

Missing access control in ForgeRock Access Management 7.1.0 and earlier versions on all platforms allows remote unauthenticated attackers to hijack sessions, including potentially admin-level sessions. This issue affects: ForgeRock Access Management 7.1 versions prior to 7.1.1; 6.5 versions prior to 6.5.4; all previous versions.

Remediation

Solution:

  • This issue is fixed in AM 6.5.4, 7.1.1, and all later versions.

Workaround:

  • Block access to the following endpoints: /authservice /sessionservice /profileservice /policyservice /namingservice /loggingservice

Categories

9.6
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.91% Top 30%
Vendor Advisory forgerock.com
Affected: ForgeRock Access Management
Published at:
Updated at:

References

Link Tags
https://backstage.forgerock.com/knowledge/kb/article/a50037155#x7ZPA0 patch vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-4201?
CVE-2021-4201 has been scored as a critical severity vulnerability.
How to fix CVE-2021-4201?
To fix CVE-2021-4201: This issue is fixed in AM 6.5.4, 7.1.1, and all later versions.
Is CVE-2021-4201 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-4201 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-4201?
CVE-2021-4201 affects ForgeRock Access Management.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.