CVE-2021-33691 Explained : Impact and Mitigation

A Cross-Site Scripting (XSS) vulnerability exists in SAP NetWeaver Development Infrastructure Notification Service versions < 7.31, < 7.40, < 7.50. An attacker can execute crafted scripts leading to information compromise.

Understanding CVE-2021-33691

This CVE involves an XSS vulnerability impacting specific versions of SAP NetWeaver Development Infrastructure (Notification Service).

What is CVE-2021-33691?

CVE-2021-33691 is a Cross-Site Scripting (XSS) vulnerability in SAP NetWeaver Development Infrastructure Notification Service versions < 7.31, < 7.40, < 7.50, allowing threat actors to execute malicious scripts.

The Impact of CVE-2021-33691

The vulnerability could result in compromising information within a user's session and potentially accessing sensitive data.

Technical Details of CVE-2021-33691

This section outlines the vulnerability description, affected systems, and the exploitation mechanism.

Vulnerability Description

The NWDI Notification Service fails to adequately encode user inputs, enabling threat actors to execute XSS attacks.

Affected Systems and Versions

SAP NetWeaver Development Infrastructure (Notification Service) versions < 7.31, < 7.40, < 7.50 are affected by this vulnerability.

Exploitation Mechanism

Attackers can send crafted scripts to users with active sessions, leading to unauthorized access and information compromise.

Mitigation and Prevention

Discover the immediate steps and long-term security practices to safeguard systems against potential exploitation.

Immediate Steps to Take

Users should apply relevant patches and security updates provided by SAP to address the vulnerability.

Long-Term Security Practices

Implement robust input validation and secure coding practices to prevent XSS vulnerabilities in applications.

Patching and Updates

Regularly update SAP NetWeaver Development Infrastructure software to patch vulnerabilities and enhance system security.