CVE-2019-0265 : What You Need to Know

A denial of service vulnerability in SAP ABAP Platform allows unauthorized individuals to disrupt legitimate user access by crashing or flooding the service.

Understanding CVE-2019-0265

What is CVE-2019-0265?

The registration of SLD for the ABAP Platform enables an unauthorized individual to obstruct the access of legitimate users to a service by either causing it to crash or flooding it with excessive requests.

The Impact of CVE-2019-0265

This vulnerability can lead to service disruption, affecting the availability and reliability of the ABAP Platform, potentially causing financial losses and reputational damage.

Technical Details of CVE-2019-0265

Vulnerability Description

The flaw in SLD registration allows attackers to disrupt service access, impacting system availability and performance.

Affected Systems and Versions

ABAP Platform (KRNL32NUC): Versions < 7.21, < 7.21EXT, < 7.22, < 7.22EXT
ABAP Platform (KRNL32UC): Versions < 7.21, < 7.21EXT, < 7.22, < 7.22EXT
ABAP Platform (KRNL64NUC): Versions < 7.21, < 7.21EXT, < 7.22, < 7.22EXT, < 7.49
ABAP Platform (KRNL64UC): Versions < 7.21, < 7.21EXT, < 7.22, < 7.22EXT, < 7.49, < 7.73
ABAP Platform (KERNEL): Versions < from 7.21 to 7.22, < 7.45, < 7.49, < 7.53, < 7.73, < 7.75

Exploitation Mechanism

Attackers exploit the vulnerability by manipulating SLD registration, causing service crashes or overwhelming the system with excessive requests.

Mitigation and Prevention

Immediate Steps to Take

Apply patches provided by SAP to fix the vulnerability
Monitor system logs for any suspicious activities
Implement network security measures to detect and block malicious traffic

Long-Term Security Practices

Regularly update and patch the ABAP Platform to address security vulnerabilities
Conduct security assessments and penetration testing to identify and remediate weaknesses

Patching and Updates

Install the latest security patches released by SAP to mitigate the CVE-2019-0265 vulnerability