CVE-2020-6304 : Exploit Details and Defense Strategies
Discover the impact of CVE-2020-6304, an improper input validation vulnerability in SAP NetWeaver Internet Communication Manager, allowing attackers to disrupt services. Learn about affected versions and mitigation steps.
A vulnerability in SAP NetWeaver Internet Communication Manager could allow an attacker to launch a denial of service attack.
Understanding CVE-2020-6304
What is CVE-2020-6304?
Improper input validation in SAP NetWeaver Internet Communication Manager versions < 7.21 to < 7.53 allows attackers to disrupt services through denial of service.
The Impact of CVE-2020-6304
The vulnerability has a CVSS base score of 5.9, with high attack complexity and impact on availability.
Technical Details of CVE-2020-6304
Vulnerability Description
The issue stems from improper input validation in SAP NetWeaver Internet Communication Manager.
Affected Systems and Versions
- SAP NetWeaver Internet Communication Manager (KRNL32NUC) versions < 7.21 to < 7.22EXT
- SAP NetWeaver Internet Communication Manager (KRNL32UC) versions < 7.21 to < 7.22EXT
- SAP NetWeaver Internet Communication Manager (KRNL64NUC) versions < 7.21 to < 7.49
- SAP NetWeaver Internet Communication Manager (KRNL64UC) versions < 7.21 to < 7.49
- SAP NetWeaver Internet Communication Manager (KERNEL) versions < 7.21 to < 7.53
Exploitation Mechanism
The vulnerability can be exploited remotely without user interaction, impacting service availability.
Mitigation and Prevention
Immediate Steps to Take
- Apply the provided updates for affected versions immediately.
- Monitor system logs for any unusual activities.
- Implement network segmentation to limit the attack surface.
Long-Term Security Practices
- Regularly update and patch SAP NetWeaver systems.
- Conduct security assessments and penetration testing.
Patching and Updates
- Refer to SAP's security notes for specific patch details and instructions.