CVE-2018-12476 Explained : Impact and Mitigation
Learn about CVE-2018-12476, a Relative Path Traversal vulnerability in obs-service-tar_scm affecting SUSE Linux Enterprise Server 15 and openSUSE Factory. Find out the impact, affected versions, and mitigation steps.
A vulnerability known as Relative Path Traversal has been identified in obs-service-tar_scm, affecting SUSE Linux Enterprise Server 15 and openSUSE Factory. This vulnerability could allow remote attackers to overwrite files on the local user's machine when a malicious service is executed.
Understanding CVE-2018-12476
This CVE involves a Relative Path Traversal vulnerability in obs-service-tar_scm, impacting SUSE Linux Enterprise Server 15 and openSUSE Factory.
What is CVE-2018-12476?
The CVE-2018-12476 vulnerability allows remote attackers to overwrite files on a user's machine by exploiting obs-service-tar_scm in SUSE Linux Enterprise Server 15 and openSUSE Factory.
The Impact of CVE-2018-12476
- CVSS Base Score: 4.3 (Medium Severity)
- Attack Vector: Network
- Attack Complexity: Low
- Privileges Required: None
- User Interaction: Required
- Integrity Impact: Low
- Confidentiality Impact: None
- Availability Impact: None
Technical Details of CVE-2018-12476
This section provides detailed technical information about the vulnerability.
Vulnerability Description
The Relative Path Traversal vulnerability in obs-service-tar_scm allows attackers to write files outside the package directory, potentially leading to unauthorized access and data manipulation.
Affected Systems and Versions
- Affected Systems: SUSE Linux Enterprise Server 15, openSUSE Factory
- Affected Version: obs-service-tar_scm versions prior to 0.9.2.1537788075.fefaa74
Exploitation Mechanism
Attackers with control over a repository can exploit obs-service-tar_scm to overwrite files on a user's machine by executing a malicious service.
Mitigation and Prevention
Protect your systems from CVE-2018-12476 with the following steps:
Immediate Steps to Take
- Update obs-service-tar_scm to version 0.9.2.1537788075.fefaa74 or higher.
- Monitor and restrict access to repositories to prevent unauthorized modifications.
Long-Term Security Practices
- Regularly audit and review file write permissions within repositories.
- Implement secure coding practices to mitigate path traversal vulnerabilities.
Patching and Updates
- Apply security patches and updates promptly to address known vulnerabilities and enhance system security.