CVE-2021-33692 : Vulnerability Insights and Analysis

This article provides detailed information about CVE-2021-33692, a vulnerability found in SAP Cloud Connector version < 2.0 that allows attackers to inject special elements, potentially leading to code injection via path traversal.

Understanding CVE-2021-33692

CVE-2021-33692 is a security vulnerability in SAP Cloud Connector version < 2.0 that enables the upload of zip files as backups. Attackers can exploit this capability to inject specially crafted elements, such as '..' and '/', to escape the restricted location and access unauthorized files or directories.

What is CVE-2021-33692?

The CVE-2021-33692 vulnerability affects SAP Cloud Connector version < 2.0, allowing unauthorized access through injected elements in backup zip files. This exploitation can lead to code injection via path traversal, compromising system integrity and potentially exposing sensitive information.

The Impact of CVE-2021-33692

The impact of CVE-2021-33692 is rated with a CVSS base score of 5.2 (Medium severity). With a high integrity impact and privileges required for exploitation, attackers can execute malicious code, leading to unauthorized access to files and directories outside the intended scope.

Technical Details of CVE-2021-33692

This section provides specifics about the vulnerability, affected systems, and the exploitation mechanism.

Vulnerability Description

The vulnerability permits code injection via path traversal by manipulating elements in uploaded zip files, enabling attackers to escape restricted directories and access unauthorized resources.

Affected Systems and Versions

SAP Cloud Connector versions prior to 2.0 are impacted by the CVE-2021-33692 vulnerability, leaving systems vulnerable to malicious path traversal attacks.

Exploitation Mechanism

Attackers can exploit CVE-2021-33692 by uploading specially crafted zip files containing malicious elements, such as directory traversal characters, to execute code injection and gain unauthorized access.

Mitigation and Prevention

Implementing security measures and timely updates can help mitigate the risks associated with CVE-2021-33692.

Immediate Steps to Take

Apply patches and updates provided by SAP to address the vulnerability in SAP Cloud Connector versions below 2.0. Restrict access to the application to authorized users and monitor for any suspicious activities.

Long-Term Security Practices

Regularly monitor and audit the application for any unauthorized access or abnormal behaviors. Conduct security training for users to raise awareness of safe practices to prevent potential exploits.

Patching and Updates

Stay informed about security bulletins and updates released by SAP for SAP Cloud Connector. Timely application of security patches and updates is crucial to mitigate vulnerabilities and enhance system security.