CVE-2021-35464 : Exploit Details and Defense Strategies

ForgeRock Access Manager (AM) server versions before 7.0 are affected by a Java deserialization vulnerability in the jato.pageSession parameter. The exploit allows remote code execution without authentication by sending a specifically crafted request to the server. This vulnerability stems from the use of the Sun ONE Application Framework (JATO) present in Java 8 or earlier versions.

Understanding CVE-2021-35464

This section provides detailed insights into the vulnerability, its impact, technical details, and mitigation steps.

What is CVE-2021-35464?

The CVE-2021-35464 vulnerability affects ForgeRock AM server versions before 7.0, enabling remote code execution through a Java deserialization flaw in the jato.pageSession parameter on multiple pages.

The Impact of CVE-2021-35464

The exploitation of this vulnerability does not require authentication and permits the execution of arbitrary code by sending a specially crafted request to the server. This can lead to unauthorized access, data theft, or system compromise.

Technical Details of CVE-2021-35464

Below are the specifics of the CVE-2021-35464 vulnerability:

Vulnerability Description

ForgeRock AM server versions before 7.0 are susceptible to remote code execution due to a Java deserialization vulnerability in the jato.pageSession parameter. Attackers can exploit this flaw to execute malicious code on the server.

Affected Systems and Versions

All ForgeRock AM server versions before 7.0 are impacted by CVE-2021-35464. The vulnerability arises from the use of the Sun ONE Application Framework (JATO) present in Java 8 or earlier releases.

Exploitation Mechanism

By sending a single crafted /ccversion/* request to the server, attackers can trigger remote code execution without requiring any authentication.

Mitigation and Prevention

Protect your systems from CVE-2021-35464 with immediate actions and long-term security measures.

Immediate Steps to Take

Update ForgeRock AM server to version 7.0 or later to patch the vulnerability.
Monitor server logs for any unusual activities that might indicate exploitation.
Implement network security measures to restrict access to sensitive server components.

Long-Term Security Practices

Regularly apply security updates and patches to the server software to maintain protection against emerging threats.
Conduct security audits and penetration testing to identify and address any vulnerabilities proactively.
Educate system administrators and users on secure coding practices and potential risks associated with deserialization vulnerabilities.

Patching and Updates

Ensure that ForgeRock AM server is always up to date with the latest security patches and updates to prevent exploitation of known vulnerabilities.