Mac Endpoint for Sophos Central before 9.9.6 and Mac Endpoint for Sophos Home before 2.2.6 allow Privilege Escalation.
Weakness
The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Anti-virus_for_sophos_central | Sophos | * | 9.9.6 (excluding) |
| Anti-virus_for_sophos_home | Sophos | * | 2.2.6 (excluding) |
Potential Mitigations
- Follow the principle of least privilege when assigning access rights to entities in a software system.
- Denying access to a file can prevent an attacker from replacing that file with a link to a sensitive file. Ensure good compartmentalization in the system to provide protected areas that can be trusted.
Related Attack Patterns
- https://cwe.mitre.org/data/definitions/132.html
- https://cwe.mitre.org/data/definitions/17.html
- https://cwe.mitre.org/data/definitions/35.html
- https://cwe.mitre.org/data/definitions/76.html
References
- https://community.sophos.com/b/security-blog/posts/advisory-cve-2020-10947---sophos-anti-virus-for-macos-privilege-escalation
- https://www.sophos.com/en-us.aspx
- https://community.sophos.com/b/security-blog/posts/advisory-cve-2020-10947---sophos-anti-virus-for-macos-privilege-escalation
- https://www.sophos.com/en-us.aspx