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CVE-2017-15924

Date: October 27, 2017

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.

Language: C

Severity Score

Related Resources (8)

https://www.x41-dsec.de/lab/advisories/x41-2017-010-shadowsocks-libev/
https://github.com/shadowsocks/shadowsocks-libev/commit/c67d275803dc6ea22c558d06b1f7ba9f94cd8de3
http://www.debian.org/security/2017/dsa-4009
https://security-tracker.debian.org/tracker/CVE-2017-15924
http://openwall.com/lists/oss-security/2017/10/13/2
https://nvd.nist.gov/vuln/detail/CVE-2017-15924
https://github.com/shadowsocks/shadowsocks-libev/issues/1734
https://www.mend.io/vulnerability-database/CVE-2017-15924

Severity Score

Weakness Type (CWE)

Improper Neutralization of Special Elements used in a Command ('Command Injection')

CWE-77

Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

CWE-78

CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): LOCAL
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): COMPLETE
Integrity (I): COMPLETE
Availability (A): COMPLETE
Additional information:

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