Improper Privilege Management Affecting tinyproxy package, versions <1.8.4-3~deb9u2
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learning- Snyk IDSNYK-DEBIAN9-TINYPROXY-273085
- published30 Jul 2017
- disclosed30 Jul 2017
Introduced: 30 Jul 2017
CVE-2017-11747 (opens in a new tab)How to fix?
Upgrade Debian:9 tinyproxy to version 1.8.4-3~deb9u2 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream tinyproxy package and not the tinyproxy package as distributed by Debian.
See How to fix? for Debian:9 relevant fixed versions and status.
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.