CVE-2021-29749 : Exploit Details and Defense Strategies

This article provides an overview of CVE-2021-29749, a vulnerability found in IBM Secure External Authentication Server and IBM Secure Proxy versions 6.0.2. The vulnerability could lead to server-side request forgery (SSRF) attacks, potentially allowing unauthorized requests and facilitating network enumeration.

Understanding CVE-2021-29749

CVE-2021-29749 is a vulnerability discovered in IBM Secure External Authentication Server and IBM Secure Proxy versions 6.0.2, known for its SSRF risk.

What is CVE-2021-29749?

The vulnerability in IBM Secure External Authentication Server and IBM Secure Proxy 6.0.2 could enable an authenticated attacker to execute unauthorized requests, potentially leading to network enumeration or other malicious activities.

The Impact of CVE-2021-29749

The vulnerability's impact is considered medium with a CVSS base score of 6.5. It poses a risk of network enumeration and other attacks from the affected systems.

Technical Details of CVE-2021-29749

CVE-2021-29749's technical details reveal more about the vulnerability, affected systems, and exploitation methods.

Vulnerability Description

IBM Secure External Authentication Server and IBM Secure Proxy versions 6.0.2 are susceptible to SSRF, allowing attackers to send unauthorized requests from the system.

Affected Systems and Versions

The affected products include IBM Secure External Authentication Server and IBM Secure Proxy versions 6.0.2.

Exploitation Mechanism

The vulnerability could be exploited by authenticated attackers to perform SSRF attacks, potentially compromising the affected systems.

Mitigation and Prevention

To address CVE-2021-29749, certain immediate steps can be taken along with long-term security practices.

Immediate Steps to Take

Users are advised to apply official fixes provided by IBM and closely monitor their systems for any suspicious activities.

Long-Term Security Practices

Implementing network security measures, restricting access privileges, and conducting regular security audits can help prevent SSRF vulnerabilities.

Patching and Updates

Regularly updating software and applying security patches is critical in reducing the risk of SSRF and other security threats.