CVE-2021-31923 : Security Advisory and Response

Ping Identity PingAccess before 5.3.3 allows HTTP request smuggling via header manipulation.

Understanding CVE-2021-31923

This CVE highlights a vulnerability in Ping Identity PingAccess version 5.3 that enables malicious actors to conduct HTTP request smuggling through header manipulation.

What is CVE-2021-31923?

The CVE-2021-31923 vulnerability in PingAccess version 5.3 allows attackers to perform HTTP request smuggling by manipulating headers. This could lead to various security risks and potential breaches.

The Impact of CVE-2021-31923

Exploitation of this vulnerability could result in unauthorized access, data theft, traffic interception, and other serious security issues. It poses a significant threat to the confidentiality, integrity, and availability of the affected systems.

Technical Details of CVE-2021-31923

The technical details of CVE-2021-31923 include:

Vulnerability Description

Ping Identity PingAccess version 5.3 is affected by HTTP request smuggling, which could be exploited by attackers to manipulate headers and conduct malicious activities.

Affected Systems and Versions

The vulnerability impacts Ping Identity PingAccess versions before 5.3.3, leaving them susceptible to exploitation through HTTP request smuggling.

Exploitation Mechanism

Attackers can exploit this vulnerability by manipulating HTTP headers, allowing them to bypass security mechanisms and perform unauthorized actions.

Mitigation and Prevention

To address CVE-2021-31923 and enhance system security, consider the following measures:

Immediate Steps to Take

Update PingAccess to version 5.3.3 or above to patch the vulnerability and prevent exploitation.
Monitor network traffic for any suspicious activities that could indicate potential HTTP request smuggling attempts.

Long-Term Security Practices

Regularly perform security assessments and penetration testing to identify and mitigate vulnerabilities in the system.
Educate system administrators and users about the risks of HTTP request smuggling and best practices for secure header management.

Patching and Updates

Stay informed about security advisories from Ping Identity and apply patches and updates promptly to safeguard systems against potential vulnerabilities.