CVE-2022-27816

SWHKD 1.1.5 unsafely uses the /tmp/swhks.pid pathname. There can be data loss or a denial of service.

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

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

• http://www.openwall.com/lists/oss-security/2022/04/14/1
• https://github.com/waycrate/swhkd/commit/0b620a09605afb815c6d8d8953bbb7a10a8c0575
• https://github.com/waycrate/swhkd/releases
• http://www.openwall.com/lists/oss-security/2022/04/14/1
• https://github.com/waycrate/swhkd/commit/0b620a09605afb815c6d8d8953bbb7a10a8c0575
• https://github.com/waycrate/swhkd/releases