CVE-2019-12091 Explained : Impact and Mitigation
Learn about CVE-2019-12091, a high-severity vulnerability in Netskope client service versions v57 and v60 allowing local users to execute code with NT\SYSTEM privilege. Find out the impact, affected systems, exploitation mechanism, and mitigation steps.
A vulnerability in Netskope client service versions v57 and v60 allows local users to execute code with NT\SYSTEM privilege.
Understanding CVE-2019-12091
This CVE involves a command injection vulnerability in Netskope client service versions v57 and v60.
What is CVE-2019-12091?
The vulnerability in Netskope client service versions v57 and v60 allows local users to execute code with NT\SYSTEM privilege. It stems from a susceptible connection handling function in the service.
The Impact of CVE-2019-12091
- CVSS Base Score: 7.8 (High Severity)
- Attack Vector: Local
- Attack Complexity: Low
- Privileges Required: Low
- Confidentiality, Integrity, and Availability Impact: High
- Scope: Unchanged
- User Interaction: None
Technical Details of CVE-2019-12091
This section provides detailed technical information about the vulnerability.
Vulnerability Description
The vulnerability allows local users to perform command injection in Netskope client service versions v57 and v60, enabling code execution with NT\SYSTEM privilege.
Affected Systems and Versions
- Affected Versions: Netskope client service versions v57 and v60
- Unaffected Versions:
- Netskope client 60.2.0.214
- Netskope client 57.2.0.219
Exploitation Mechanism
The vulnerability arises from the connection handling function in the Netskope client service, making it susceptible to command injection by local users.
Mitigation and Prevention
Protect your systems from CVE-2019-12091 with the following steps:
Immediate Steps to Take
- Apply the provided remediations in Netskope client service versions R62 onwards.
- Ensure that golden releases R60.2.0.214 and R57.2.0.219 are in place.
Long-Term Security Practices
- Regularly update and patch Netskope client service to the latest versions.
- Implement strict access controls and monitoring to prevent unauthorized code execution.
Patching and Updates
Stay informed about the latest security updates and patches for Netskope client service to mitigate the risk of command injection vulnerabilities.