CVE-2018-14348 : Security Advisory and Response
Learn about CVE-2018-14348, a vulnerability in libcgroup versions 0.41 and earlier that exposes information due to incorrect file permissions. Find mitigation steps and long-term security practices here.
CVE-2018-14348, published on August 14, 2018, addresses a vulnerability in libcgroup versions 0.41 and below. The issue involves the creation of the file /var/log/cgred with incorrect permissions, potentially leading to information exposure.
Understanding CVE-2018-14348
This CVE entry highlights a security flaw in libcgroup that could result in unintended data exposure.
What is CVE-2018-14348?
The vulnerability in libcgroup versions 0.41 and earlier causes the file /var/log/cgred to be generated with a permission mode of 0666, regardless of the defined umask. This misconfiguration may lead to the inadvertent disclosure of sensitive information.
The Impact of CVE-2018-14348
The exposure of information due to incorrect file permissions can pose a risk to the confidentiality of data stored on affected systems.
Technical Details of CVE-2018-14348
This section delves into the specifics of the vulnerability.
Vulnerability Description
The vulnerability in libcgroup up to version 0.41 results in the creation of the file /var/log/cgred with mode 0666, irrespective of the configured umask, potentially leading to information disclosure.
Affected Systems and Versions
- Product: Not applicable
- Vendor: Not applicable
- Versions affected: 0.41 and below
Exploitation Mechanism
The vulnerability is exploited by the incorrect setting of file permissions during the creation of /var/log/cgred, allowing unauthorized access to potentially sensitive information.
Mitigation and Prevention
Protecting systems from CVE-2018-14348 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Monitor file permissions and access to /var/log/cgred
- Apply relevant security updates or patches
- Restrict access to sensitive information
Long-Term Security Practices
- Regularly review and update file permission settings
- Implement least privilege access controls
- Conduct security audits to identify similar vulnerabilities
Patching and Updates
Ensure that the libcgroup software is updated to a secure version that addresses the file permission issue to mitigate the risk of information exposure.