Vulnerability Description
An Insecure Permissions vulnerability in SpawningKit in Phusion Passenger 5.3.x before 5.3.2 causes information disclosure in the following situation: given a Passenger-spawned application process that reports that it listens on a certain Unix domain socket, if any of the parent directories of said socket are writable by a normal user that is not the application's user, then that non-application user can swap that directory with something else, resulting in traffic being redirected to a non-application user's process through an alternative Unix domain socket.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Phusion | Passenger | >= 5.3.0, < 5.3.2 |
Related Weaknesses (CWE)
References
- https://blog.phusion.nl/passenger-5-3-2MitigationVendor Advisory
- https://security.gentoo.org/glsa/201807-02Third Party Advisory
- https://blog.phusion.nl/passenger-5-3-2MitigationVendor Advisory
- https://security.gentoo.org/glsa/201807-02Third Party Advisory
FAQ
What is CVE-2018-12027?
CVE-2018-12027 is a vulnerability with a CVSS score of 8.8 (HIGH). An Insecure Permissions vulnerability in SpawningKit in Phusion Passenger 5.3.x before 5.3.2 causes information disclosure in the following situation: given a Passenger-spawned application process tha...
How severe is CVE-2018-12027?
CVE-2018-12027 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2018-12027?
Check the references section above for vendor advisories and patch information. Affected products include: Phusion Passenger.