CVE-2021-44038 : Security Advisory and Response
Learn about CVE-2021-44038, a vulnerability in Quagga through 1.2.4 allowing users to gain root privileges due to unsafe operations. Find out how to mitigate and prevent this issue.
An issue in Quagga through 1.2.4 allows users to escalate their privileges to root due to unsafe chown/chmod operations during package installation or update.
Understanding CVE-2021-44038
What is CVE-2021-44038?
CVE-2021-44038 is a vulnerability in Quagga through version 1.2.4 that enables users to gain root privileges by exploiting unsafe operations in the suggested spec file.
The Impact of CVE-2021-44038
The vulnerability allows attackers with control over the non-root-owned directory /etc/quagga to elevate their privileges to root during package installation or update.
Technical Details of CVE-2021-44038
Vulnerability Description
Unsafe chown/chmod operations in the Quagga suggested spec file enable privilege escalation to root upon package installation or update.
Affected Systems and Versions
- Product: Quagga
- Vendor: N/A
- Versions affected: All versions up to and including 1.2.4
Exploitation Mechanism
Attackers controlling /etc/quagga directory can exploit the vulnerability to escalate their privileges to root.
Mitigation and Prevention
Immediate Steps to Take
- Monitor official sources for a patch or workaround
- Implement temporary access controls to limit exposure
Long-Term Security Practices
- Regularly review and update file permissions
- Conduct security audits of file operations
Patching and Updates
Apply patches released by Quagga to fix the vulnerability.