CVE-2018-10841 Explained : Impact and Mitigation
Learn about CVE-2018-10841, a vulnerability in glusterfs allowing authenticated clients to escalate privileges. Find mitigation steps and patch information here.
A security issue with glusterfs on gluster server nodes allows privilege escalation through authenticated clients exploiting the gluster cli.
Understanding CVE-2018-10841
What is CVE-2018-10841?
CVE-2018-10841 is a vulnerability in glusterfs that enables authenticated clients to perform privileged operations on the gluster server nodes, potentially leading to privilege escalation.
The Impact of CVE-2018-10841
The vulnerability has a CVSS base score of 6.6, with high impacts on confidentiality, integrity, and availability. An attacker can add themselves to the trusted storage pool and execute privileged operations.
Technical Details of CVE-2018-10841
Vulnerability Description
- Authenticated gluster clients can exploit the gluster cli with the --remote-host command to perform privileged operations.
Affected Systems and Versions
- Product: glusterfs
- Vendor: Red Hat
- Versions: All
Exploitation Mechanism
- Attack Complexity: Low
- Attack Vector: Adjacent Network
- Privileges Required: High
- User Interaction: Required
- Scope: Unchanged
- The attacker needs to be authenticated via TLS to exploit the vulnerability.
Mitigation and Prevention
Immediate Steps to Take
- Apply the patches provided by Red Hat to address the vulnerability.
- Restrict network access to the gluster server nodes.
Long-Term Security Practices
- Regularly update and patch the glusterfs software to mitigate known vulnerabilities.
- Implement strong authentication mechanisms for gluster clients accessing the server.
Patching and Updates
- Red Hat has released security advisories (RHSA-2018:1955, RHSA-2018:1954) containing patches to fix CVE-2018-10841.