Vulnerability Details : CVE-2017-13649
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.
Products affected by CVE-2017-13649
- cpe:2.3:a:unrealircd:unrealircd:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2017-13649
0.04%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 6 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2017-13649
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
2.1
|
LOW | AV:L/AC:L/Au:N/C:N/I:N/A:P |
3.9
|
2.9
|
NIST | |
|
5.5
|
MEDIUM | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
1.8
|
3.6
|
NIST |
CWE ids for CVE-2017-13649
-
The product does not initialize or incorrectly initializes a resource, which might leave the resource in an unexpected state when it is accessed or used.Assigned by: nvd@nist.gov (Primary)
References for CVE-2017-13649
-
http://www.securityfocus.com/bid/100507
UnrealIRCd CVE-2017-13649 Local Privilege Escalation VulnerabilityThird Party Advisory;VDB Entry
-
https://bugs.unrealircd.org/view.php?id=4990
0004990: Privilege escalation via PID file manipulation - UnrealIRCd Bug TrackerIssue Tracking;Third Party Advisory
Jump to