CVE-2019-0279 : Exploit Details and Defense Strategies
Learn about CVE-2019-0279 affecting SAP BASIS versions 7.0 to 7.53. Find out how authenticated users can exploit insufficient authorization checks for privilege escalation and steps to mitigate the risk.
SAP BASIS versions 7.0 to 7.02, 7.10 to 7.30, 7.31, 7.40, and 7.50 to 7.53 are affected by a vulnerability that allows authenticated users to escalate privileges due to insufficient authorization checks.
Understanding CVE-2019-0279
This CVE involves ABAP BASIS function modules in SAP BASIS versions that lack necessary authorization checks, leading to privilege escalation.
What is CVE-2019-0279?
The ABAP BASIS function modules INST_CREATE_R3_RFC_DEST, INST_CREATE_TCPIP_RFCDEST, and INST_CREATE_TCPIP_RFC_DEST in SAP BASIS versions 7.0 to 7.02, 7.10 to 7.30, 7.31, 7.40, and 7.50 to 7.53 have a vulnerability that allows an authenticated user to escalate privileges due to insufficient authorization checks in certain situations.
The Impact of CVE-2019-0279
This vulnerability can be exploited by authenticated users to gain elevated privileges within the affected SAP BASIS versions.
Technical Details of CVE-2019-0279
This section provides more in-depth technical information about the CVE.
Vulnerability Description
The ABAP BASIS function modules in SAP BASIS versions mentioned do not perform necessary authorization checks for authenticated users, enabling privilege escalation.
Affected Systems and Versions
- SAP BASIS versions 7.0 to 7.02
- SAP BASIS versions 7.10 to 7.30
- SAP BASIS version 7.31
- SAP BASIS version 7.40
- SAP BASIS versions 7.50 to 7.53
Exploitation Mechanism
The vulnerability arises from insufficient authorization checks in the ABAP BASIS function modules, allowing authenticated users to exploit the flaw and escalate their privileges.
Mitigation and Prevention
Protect your systems from CVE-2019-0279 with these mitigation strategies.
Immediate Steps to Take
- Apply the necessary security patches provided by SAP to fix the vulnerability.
- Monitor user activities and access to detect any unauthorized privilege escalation attempts.
- Restrict user permissions to minimize the impact of potential exploitation.
Long-Term Security Practices
- Regularly update and patch SAP BASIS to address security vulnerabilities promptly.
- Conduct security training for users to raise awareness about privilege escalation risks.
Patching and Updates
- Stay informed about security updates and patches released by SAP for SAP BASIS versions to prevent exploitation of vulnerabilities.