CVE-2019-17043 : Security Advisory and Response
Discover the privilege escalation vulnerability in BMC Patrol Agent 9.0.10i (CVE-2019-17043) allowing attackers to gain elevated privileges. Learn about the impact, affected systems, exploitation, and mitigation steps.
A vulnerability has been identified in BMC Patrol Agent 9.0.10i that could allow an attacker to gain elevated privileges by exploiting weak execution permissions on a specific SUID binary.
Understanding CVE-2019-17043
This CVE pertains to a privilege escalation vulnerability in BMC Patrol Agent 9.0.10i due to inadequate execution permissions on the SUID binary best1collect.exe.
What is CVE-2019-17043?
The vulnerability in BMC Patrol Agent 9.0.10i allows a potential attacker to escalate privileges to those of the "patrol" user by manipulating a shared library .so file during execution.
The Impact of CVE-2019-17043
Exploiting this vulnerability could lead to unauthorized access and control over the affected system, posing a significant security risk.
Technical Details of CVE-2019-17043
This section provides more in-depth technical insights into the vulnerability.
Vulnerability Description
The vulnerability arises from insufficient execution permissions on the SUID binary best1collect.exe, enabling privilege escalation to the level of the "patrol" user through a crafted shared library .so file.
Affected Systems and Versions
- Product: BMC Patrol Agent 9.0.10i
- Vendor: BMC
- Version: n/a
Exploitation Mechanism
The vulnerability can be exploited by creating a specially crafted shared library .so file that is loaded during the execution of the SUID binary best1collect.exe.
Mitigation and Prevention
It is crucial to take immediate steps to address and prevent the exploitation of this vulnerability.
Immediate Steps to Take
- Apply vendor-supplied patches or updates promptly.
- Restrict access to vulnerable systems.
- Monitor for any unauthorized system changes or activities.
Long-Term Security Practices
- Regularly update and patch all software and systems.
- Implement the principle of least privilege to restrict unnecessary access.
- Conduct security assessments and audits periodically.
Patching and Updates
Ensure that all relevant patches and updates provided by BMC are applied to mitigate the vulnerability effectively.