CVE-2020-6240 : What You Need to Know
Learn about CVE-2020-6240 affecting SAP NetWeaver AS ABAP versions (SAP_UI 750, 752, 753, 754 and SAP_BASIS 700, 710, 730, 731, 804), allowing attackers to disrupt services and cause Denial of Service.
SAP NetWeaver AS ABAP (Web Dynpro ABAP) versions (SAP_UI 750, 752, 753, 754 and SAP_BASIS 700, 710, 730, 731, 804) are vulnerable to a Denial of Service attack.
Understanding CVE-2020-6240
This CVE identifies a vulnerability in SAP NetWeaver AS ABAP that could allow an unauthenticated attacker to disrupt services, leading to a Denial of Service (DoS) condition.
What is CVE-2020-6240?
SAP NetWeaver AS ABAP (Web Dynpro ABAP) is susceptible to attacks that can prevent legitimate users from accessing services by causing service crashes or flooding, resulting in a Denial of Service.
The Impact of CVE-2020-6240
The vulnerability poses a medium severity risk with a CVSS base score of 5.3. Attackers can exploit this issue without requiring any special privileges, potentially causing service disruptions.
Technical Details of CVE-2020-6240
Vulnerability Description
The vulnerability in SAP NetWeaver AS ABAP allows unauthenticated attackers to disrupt services, leading to Denial of Service conditions.
Affected Systems and Versions
- SAP NetWeaver AS ABAP (Web Dynpro ABAP) (SAP_UI): Versions 750, 752, 753, 754
- SAP NetWeaver AS ABAP (Web Dynpro ABAP) (SAP_BASIS): Versions 700, 710, 730, 731, 804
Exploitation Mechanism
The vulnerability can be exploited remotely over the network without requiring user interaction, making it easier for attackers to launch DoS attacks.
Mitigation and Prevention
Immediate Steps to Take
- Apply the patches provided by SAP to address the vulnerability promptly.
- Monitor network traffic for any signs of exploitation attempts.
- Implement network segmentation to limit the impact of potential attacks.
Long-Term Security Practices
- Regularly update and patch SAP systems to protect against known vulnerabilities.
- Conduct security assessments and penetration testing to identify and address weaknesses proactively.
Patching and Updates
Ensure that SAP NetWeaver AS ABAP (Web Dynpro ABAP) versions are kept up to date with the latest security patches to mitigate the risk of DoS attacks.