Vulnerability Description
UnrealIRCd 4.0.13 and earlier creates a PID file after dropping privileges to a non-root account, which might allow local users to kill arbitrary processes by leveraging access to this non-root account for PID file modification before a root script executes a "kill `cat /pathname`" command. NOTE: the vendor indicates that there is no common or recommended scenario in which a root script would execute this kill command.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Unrealircd | Unrealircd | <= 4.0.13 |
Related Weaknesses (CWE)
References
- http://www.securityfocus.com/bid/100507Third Party AdvisoryVDB Entry
- https://bugs.unrealircd.org/view.php?id=4990Issue TrackingThird Party Advisory
- http://www.securityfocus.com/bid/100507Third Party AdvisoryVDB Entry
- https://bugs.unrealircd.org/view.php?id=4990Issue TrackingThird Party Advisory
FAQ
What is CVE-2017-13649?
CVE-2017-13649 is a vulnerability with a CVSS score of 5.5 (MEDIUM). UnrealIRCd 4.0.13 and earlier creates a PID file after dropping privileges to a non-root account, which might allow local users to kill arbitrary processes by leveraging access to this non-root accoun...
How severe is CVE-2017-13649?
CVE-2017-13649 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2017-13649?
Check the references section above for vendor advisories and patch information. Affected products include: Unrealircd Unrealircd.