Vulnerability Details : CVE-2017-11747
main.c in Tinyproxy 1.8.4 and earlier creates a /run/tinyproxy/tinyproxy.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 tinyproxy.pid modification before a root script executes a "kill `cat /run/tinyproxy/tinyproxy.pid`" command.
Exploit prediction scoring system (EPSS) score for CVE-2017-11747
Probability of exploitation activity in the next 30 days: 0.04%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 6 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2017-11747
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
---|---|---|---|---|---|
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-2017-11747
-
The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.Assigned by: nvd@nist.gov (Primary)
References for CVE-2017-11747
-
https://github.com/tinyproxy/tinyproxy/issues/106
tinyproxy should create its PID file before dropping privileges (CVE-2017-11747) · Issue #106 · tinyproxy/tinyproxy · GitHubIssue Tracking;Patch;Third Party Advisory
-
https://lists.debian.org/debian-lts-announce/2020/03/msg00037.html
[SECURITY] [DLA 2163-1] tinyproxy security update
Products affected by CVE-2017-11747
- cpe:2.3:a:tinyproxy_project:tinyproxy:*:*:*:*:*:*:*:*