CVE-2021-22112 : Vulnerability Insights and Analysis

This CVE-2021-22112 article provides detailed information about a vulnerability in Spring Security versions 5.4.x, 5.3.x, and 5.2.x.

Understanding CVE-2021-22112

This section delves into the vulnerability, its impact, technical details, and mitigation strategies.

What is CVE-2021-22112?

CVE-2021-22112 affects Spring Security versions 5.4.x, 5.3.x, and 5.2.x, potentially allowing privilege escalation through security context manipulation in a single request.

The Impact of CVE-2021-22112

The vulnerability can be exploited by a malicious user to extend elevated privileges beyond the intended scope within the application.

Technical Details of CVE-2021-22112

This section provides specific technical information related to the CVE-2021-22112 vulnerability.

Vulnerability Description

Spring Security versions 5.4.x, 5.3.x, and 5.2.x fail to save the SecurityContext when changed multiple times in a single request, leading to potential privilege escalation.

Affected Systems and Versions

The vulnerable versions include Spring Security 5.4.x prior to 5.4.4, 5.3.x prior to 5.3.8.RELEASE, and 5.2.x prior to 5.2.9.RELEASE.

Exploitation Mechanism

The bug must be intentionally programmed to occur, limiting the risk of exploitation by malicious actors.

Mitigation and Prevention

Understanding how to mitigate and prevent CVE-2021-22112 is crucial for ensuring system security.

Immediate Steps to Take

Organizations should update affected Spring Security versions to 5.4.4, 5.3.8.RELEASE, or 5.2.9.RELEASE to prevent privilege escalation.

Long-Term Security Practices

Implementing security best practices, regular audits, and secure coding practices can help prevent similar vulnerabilities.

Patching and Updates

Ensuring timely application of patches and updates provided by Spring Security is essential to address CVE-2021-22112.