CVE-2020-9363 : Security Advisory and Response
Discover how the Sophos AV parsing engine vulnerability (CVE-2020-9363) allows virus-detection bypass via a crafted ZIP archive, impacting various Sophos products. Learn about the impact, affected systems, exploitation, and mitigation steps.
Sophos AV parsing engine before 2020-01-14 allows virus-detection bypass via a crafted ZIP archive, affecting various Sophos products.
Understanding CVE-2020-9363
This CVE highlights a vulnerability in the Sophos AV parsing engine that could be exploited to bypass virus detection.
What is CVE-2020-9363?
The Sophos AV parsing engine, prior to 2020-01-14, is susceptible to a virus-detection bypass through a specially crafted ZIP archive. This vulnerability impacts several Sophos products.
The Impact of CVE-2020-9363
The vulnerability allows attackers to evade virus detection mechanisms, potentially leading to malware infiltration in affected systems.
Technical Details of CVE-2020-9363
The following technical aspects provide insight into the CVE-2020-9363 vulnerability.
Vulnerability Description
The Sophos AV parsing engine vulnerability enables threat actors to bypass virus detection by using a maliciously crafted ZIP archive.
Affected Systems and Versions
- Products affected: Endpoint Protection, Cloud Optix, Mobile, Intercept X Endpoint, Intercept X for Server, and Secure Web Gateway.
- Versions impacted: Versions before 2020-01-14.
Exploitation Mechanism
The exploitation involves crafting a ZIP archive in a specific manner to evade virus detection mechanisms in Sophos products.
Mitigation and Prevention
Protecting systems from CVE-2020-9363 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Update Sophos products to versions released after 2020-01-14 to mitigate the vulnerability.
- Implement additional security measures to detect and prevent similar evasion techniques.
Long-Term Security Practices
- Regularly update security software and patches to safeguard against known vulnerabilities.
- Conduct security audits and penetration testing to identify and address potential weaknesses.
Patching and Updates
- Sophos has likely released patches addressing this vulnerability; ensure timely application of these updates to secure systems.