CVE-2022-23742

Check Point Endpoint Security Client for Windows versions earlier than E86.40 copy files for forensics reports from a directory with low privileges. An attacker can replace those files with malicious or linked content, such as exploiting CVE-2020-0896 on unpatched systems or using symbolic links.

Weakness

The product, when opening a file or directory, does not sufficiently handle when the name is associated with a hard link to a target that is outside of the intended control sphere. This could allow an attacker to cause the product to operate on unauthorized files.

Affected Software

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.

References

• https://supportcontent.checkpoint.com/solutions?id=sk178665%2C
• https://supportcontent.checkpoint.com/solutions?id=sk179132
• https://supportcontent.checkpoint.com/solutions?id=sk178665%2C
• https://supportcontent.checkpoint.com/solutions?id=sk179132