CVE-2020-6188 : Security Advisory and Response

VAT Pro-Rata reports in SAP ERP (SAP_APPL versions 600, 602, 603, 604, 605, 606, 616 and SAP_FIN versions 617, 618, 700, 720, 730) and SAP S/4 HANA (versions 100, 101, 102, 103, 104) have a vulnerability that allows an authenticated user to bypass necessary authorization checks, resulting in Missing Authorization Check.

Understanding CVE-2020-6188

This CVE identifies a security issue in SAP ERP and SAP S/4 HANA that could lead to unauthorized access due to missing authorization checks.

What is CVE-2020-6188?

This CVE pertains to the lack of essential authorization verification in SAP ERP and SAP S/4 HANA, enabling authenticated users to perform actions without proper permissions.

The Impact of CVE-2020-6188

The vulnerability poses a medium-severity risk with a CVSS base score of 6.3, allowing attackers to compromise data integrity with low confidentiality impact.

Technical Details of CVE-2020-6188

This section provides in-depth technical insights into the vulnerability.

Vulnerability Description

The issue arises from the absence of authorization checks for authenticated users, enabling them to execute actions without proper permissions.

Affected Systems and Versions

SAP ERP (SAP_APPL): Versions 6.0, 6.02, 6.03, 6.04, 6.05, 6.06, 6.16
SAP ERP (SAP_FIN): Versions 6.17, 6.18, 7.0, 7.20, 7.30
SAP S/4 HANA (S4CORE): Versions 1.0, 1.01, 1.02, 1.03, 1.04

Exploitation Mechanism

The vulnerability requires an attacker to be authenticated, allowing them to exploit the lack of authorization checks to perform unauthorized actions.

Mitigation and Prevention

Protect your systems from CVE-2020-6188 with these security measures.

Immediate Steps to Take

Apply relevant security patches provided by SAP.
Monitor user activities for any unauthorized actions.
Restrict user permissions to essential functions only.

Long-Term Security Practices

Conduct regular security audits and assessments.
Educate users on secure practices and the importance of authorization checks.

Patching and Updates

Stay informed about security updates from SAP.
Implement patches promptly to address known vulnerabilities.