CVE-2022-30333 : Security Advisory and Response
Get insights into CVE-2022-30333, a security flaw in RARLAB UnRAR allowing directory traversal on Linux and UNIX systems. Learn mitigation steps here.
This article provides detailed information about CVE-2022-30333, a vulnerability in RARLAB UnRAR before version 6.12 on Linux and UNIX.
Understanding CVE-2022-30333
RARLAB UnRAR before 6.12 on Linux and UNIX allows directory traversal to write to files during an extract (unpack) operation, potentially leading to unauthorized access.
What is CVE-2022-30333?
CVE-2022-30333 is a security vulnerability in RARLAB UnRAR that enables directory traversal which can be exploited to write to files, such as maliciously creating a ~/.ssh/authorized_keys file.
The Impact of CVE-2022-30333
The vulnerability allows attackers to perform unauthorized write operations during file extraction, posing a risk of unauthorized access and potential privilege escalation.
Technical Details of CVE-2022-30333
Vulnerability Description
The vulnerability in RARLAB UnRAR before version 6.12 on Linux and UNIX allows malicious actors to perform directory traversal attacks during the extraction process, leading to unauthorized writes.
Affected Systems and Versions
The affected systems include Linux and UNIX environments running RARLAB UnRAR versions before 6.12. WinRAR and Android RAR are not impacted by this vulnerability.
Exploitation Mechanism
Attackers can exploit the CVE-2022-30333 vulnerability by manipulating file paths to create or overwrite files during the extraction of compressed files by RARLAB UnRAR software.
Mitigation and Prevention
Immediate Steps to Take
Users are advised to update RARLAB UnRAR to version 6.12 or newer to mitigate the risk of exploitation. Avoid extracting files from untrusted or unknown sources.
Long-Term Security Practices
Implement secure coding practices, monitor for unauthorized file modifications, and regularly update software to the latest versions to prevent exploitation of known vulnerabilities.
Patching and Updates
Stay informed about security advisories and promptly apply patches released by the software vendor to address any security vulnerabilities in RARLAB UnRAR.