OS Command Injection Affecting shadowsocks-libev package, versions <3.1.0+ds-2
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-DEBIAN12-SHADOWSOCKSLIBEV-1559854
- published27 Oct 2017
- disclosed27 Oct 2017
Introduced: 27 Oct 2017
CVE-2017-15924 (opens in a new tab)How to fix?
Upgrade Debian:12 shadowsocks-libev to version 3.1.0+ds-2 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream shadowsocks-libev package and not the shadowsocks-libev package as distributed by Debian.
See How to fix? for Debian:12 relevant fixed versions and status.
In manager.c in ss-manager in shadowsocks-libev 3.1.0, improper parsing allows command injection via shell metacharacters in a JSON configuration request received via 127.0.0.1 UDP traffic, related to the add_server, build_config, and construct_command_line functions.
References
- https://security-tracker.debian.org/tracker/CVE-2017-15924
- http://www.debian.org/security/2017/dsa-4009
- https://github.com/shadowsocks/shadowsocks-libev/commit/c67d275803dc6ea22c558d06b1f7ba9f94cd8de3
- https://github.com/shadowsocks/shadowsocks-libev/issues/1734
- https://www.x41-dsec.de/lab/advisories/x41-2017-010-shadowsocks-libev/
- http://openwall.com/lists/oss-security/2017/10/13/2