CVE-2022-4510 : What You Need to Know
Learn about CVE-2022-4510, a path traversal vulnerability in ReFirm Labs binwalk versions 2.1.2b through 2.3.3, allowing remote code execution. Find out the impact, technical details, and mitigation steps.
A path traversal vulnerability has been identified in ReFirm Labs binwalk, affecting versions 2.1.2b through 2.3.3. This vulnerability could allow an attacker to execute remote code by exploiting the PFS extractor function.
Understanding CVE-2022-4510
This section will detail the nature of the vulnerability, its impacts, technical details, and how to mitigate the risk associated with CVE-2022-4510.
What is CVE-2022-4510?
A path traversal vulnerability in binwalk versions 2.1.2b through 2.3.3 allows attackers to extract files at arbitrary locations using a malicious PFS filesystem, potentially leading to remote code execution by extracting a malicious binwalk module into a specific folder.
The Impact of CVE-2022-4510
The vulnerability, categorized under CAPEC-549 and CAPEC-126, poses a high-risk scenario for local execution of code and path traversal, thereby jeopardizing data confidentiality, integrity, and availability.
Technical Details of CVE-2022-4510
Let's delve into the specifics of the vulnerability.
Vulnerability Description
By manipulating a PFS file, attackers can force binwalk's PFS extractor to extract files to unintended locations during extraction, paving the way for remote code execution.
Affected Systems and Versions
The vulnerability affects binwalk versions 2.1.2b through 2.3.3 where the PFS extractor is susceptible to exploitation.
Exploitation Mechanism
Attackers leverage a crafted PFS filesystem file to extract a malevolent binwalk module into a specific directory, allowing them to execute arbitrary code remotely.
Mitigation and Prevention
Discover how to address and mitigate the risks associated with CVE-2022-4510.
Immediate Steps to Take
To mitigate the vulnerability, consider removing the unpfs extractor, disabling it through binwalk's configuration file, and applying the fix provided by the vendor.
Long-Term Security Practices
Ensure timely patching and updates for binwalk to stay protected from such vulnerabilities in the future.
Patching and Updates
Stay informed about security patches released by the vendor to address CVE-2022-4510 and other potential risks.