CVE-2017-15924

high-risk
Published 2017-10-27

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.

Do I need to act?

-
0.45% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.8/10 High
LOCAL / LOW complexity

Affected Products (20)

Shadowsocks-Libev
Shadowsocks-Libev
Shadowsocks-Libev
Shadowsocks-Libev
Shadowsocks-Libev
Shadowsocks-Libev
Shadowsocks-Libev
Shadowsocks-Libev
Shadowsocks-Libev
Shadowsocks-Libev
Shadowsocks-Libev
Shadowsocks-Libev
Shadowsocks-Libev
Shadowsocks-Libev
Shadowsocks-Libev
Shadowsocks-Libev
Shadowsocks-Libev
Shadowsocks-Libev
Shadowsocks-Libev
Shadowsocks-Libev

Affected Vendors

Shadowsocks Debian

References (10)

Mailing List http://openwall.com/lists/oss-security/2017/10/13/2
Third Party Advisory http://www.debian.org/security/2017/dsa-4009
Third Party Advisory https://github.com/shadowsocks/shadowsocks-libev/commit/c67d275803dc6ea22c558d06...
Third Party Advisory https://github.com/shadowsocks/shadowsocks-libev/issues/1734
Exploit https://www.x41-dsec.de/lab/advisories/x41-2017-010-shadowsocks-libev/
Mailing List http://openwall.com/lists/oss-security/2017/10/13/2
Third Party Advisory http://www.debian.org/security/2017/dsa-4009
Third Party Advisory https://github.com/shadowsocks/shadowsocks-libev/commit/c67d275803dc6ea22c558d06...
Third Party Advisory https://github.com/shadowsocks/shadowsocks-libev/issues/1734
Exploit https://www.x41-dsec.de/lab/advisories/x41-2017-010-shadowsocks-libev/
54
/ 100
high-risk
Severity 24/34 · High
Exploitability 2/34 · Minimal
Exposure 28/34 · Critical