CRITICAL

CVE-2021-35464

Forgerock Access Management 2021-07-22 CVSS v3.1

CVSS

9.8

KEV

Description

ForgeRock AM server before 7.0 has a Java deserialization vulnerability in the jato.pageSession parameter on multiple pages. The exploitation does not require authentication, and remote code execution can be triggered by sending a single crafted /ccversion/* request to the server. The vulnerability exists due to the usage of Sun ONE Application Framework (JATO) found in versions of Java 8 or earlier

Summary dbcve.org

Pre-authentication Java deserialization vulnerability in ForgeRock AM server versions before 7.0, exploitable through the jato.pageSession parameter on multiple pages. Remote code execution achieved via single crafted /ccversion/* request due to unsafe deserialization in the Sun ONE Application Framework (JATO) used with Java 8 or earlier.

Mitigation

Upgrade to ForgeRock AM 7.0 or later which removes the vulnerable JATO framework; apply vendor patches if immediate upgrade is not feasible. Implement network-level restrictions to /ccversion/* endpoints as temporary mitigation.

Proof of Concept

Weakness (CWE)

CWE-502 Deserialization of Untrusted Data

EPSS Score

100%

Probability of exploitation in next 30 days

100th percentile

References

http://packetstormsecurity.com/files/163486/ForgeRock-OpenAM-Jato-Java-Deserialization.html Exploit, Third Party Advisory, VDB Entry http://packetstormsecurity.com/files/163525/ForgeRock-Access-Manager-OpenAM-14.6.3-Remote-Code-Execution.html Exploit, Third Party Advisory, VDB Entry https://backstage.forgerock.com/knowledge/kb/article/a47894244 Exploit, Permissions Required, Vendor Advisory https://bugster.forgerock.org Broken Link https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-35464 US Government Resource

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Base CVE data derived from NVD (public domain). Enrichment by dbcve.org (CC-BY-4.0). Fetched via API.

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