CVE-2020-26820 : What You Need to Know

SAP NetWeaver AS JAVA versions 7.20, 7.30, 7.31, 7.40, 7.50 allow an attacker to execute OS commands through the administrator console, leading to Privilege Escalation.

Understanding CVE-2020-26820

SAP NetWeaver AS JAVA vulnerability with a critical base score of 9.1.

What is CVE-2020-26820?

Attackers can exploit an authenticated administrator's access to expose unauthenticated file system access and upload malicious files, leading to OS command execution.
This vulnerability can compromise server OS integrity, confidentiality, and availability.

The Impact of CVE-2020-26820

CVSS Score: 9.1 (Critical)
Attack Vector: Network
Attack Complexity: Low
Privileges Required: High
Confidentiality Impact: High
Integrity Impact: High
Availability Impact: High
Scope: Changed
User Interaction: None

Technical Details of CVE-2020-26820

SAP NetWeaver AS JAVA vulnerability details.

Vulnerability Description

Allows an attacker with admin access to compromise system integrity through OS command execution.

Affected Systems and Versions

Affected Versions: < 7.20, < 7.30, < 7.31, < 7.40, < 7.50
Product: SAP NetWeaver AS JAVA

Exploitation Mechanism

Attacker authenticated as admin can upload malicious files through the admin console, leading to OS command execution.

Mitigation and Prevention

Protect your systems from CVE-2020-26820.

Immediate Steps to Take

Apply security patches provided by SAP.
Monitor system logs for any suspicious activities.
Restrict admin access to essential personnel only.

Long-Term Security Practices

Regularly update and patch SAP NetWeaver AS JAVA.
Conduct security training for system administrators.

Patching and Updates

Stay informed about security updates from SAP.