CVE-2021-27611 Explained : Impact and Mitigation
Learn about CVE-2021-27611 impacting SAP NetWeaver AS ABAP versions 700, 701, 702, 730, and 731. Understand the vulnerability, its impact, and mitigation steps.
SAP NetWeaver AS ABAP versions 700, 701, 702, 730, and 731 are vulnerable to a code injection flaw that allows a high privileged attacker to execute malicious code. This could lead to unauthorized data access, data modification, or denial of service.
Understanding CVE-2021-27611
This CVE impacts SAP NetWeaver AS ABAP versions 700, 701, 702, 730, and 731.
What is CVE-2021-27611?
It is a code injection vulnerability in SAP NetWeaver AS ABAP that enables a high privileged attacker to inject and execute malicious code when having access to the local SAP system.
The Impact of CVE-2021-27611
The vulnerability has a CVSS base score of 8.2 (High severity), with a low attack complexity, requiring high privileges, and resulting in high confidentiality and integrity impacts.
Technical Details of CVE-2021-27611
This section provides a detailed overview of the vulnerability.
Vulnerability Description
The flaw allows an attacker to inject code via executing an ABAP report, leading to potential data breaches, alteration, or denial of service attacks.
Affected Systems and Versions
SAP NetWeaver AS ABAP versions < 700, < 701, < 702, < 730, and < 731 are affected by this vulnerability.
Exploitation Mechanism
An attacker with high privileges can exploit this vulnerability by injecting and executing malicious code through an ABAP report.
Mitigation and Prevention
To secure SAP NetWeaver AS ABAP systems, immediate actions and long-term security practices are essential.
Immediate Steps to Take
- Apply relevant patches and updates provided by SAP SE.
- Restrict network access and user permissions to minimize the attack surface.
- Monitor system logs for any suspicious activities.
Long-Term Security Practices
- Regularly update and patch SAP systems to address known vulnerabilities.
- Conduct security assessments and penetration testing to identify and remediate weaknesses.
Patching and Updates
Stay informed about security advisories from SAP SE and promptly apply patches to address security vulnerabilities.