#VU23393 Missing Authentication for Critical Function in Shadowsocks-libev - CVE-2019-5164
Published: December 4, 2019 / Updated: January 30, 2020
Vulnerability identifier: #VU23393
Vulnerability risk: High
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Amber
CVE-ID: CVE-2019-5164
CWE-ID: CWE-306
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Shadowsocks-libev
Shadowsocks-libev
Software vendor:
Shadowsocks
Shadowsocks
Description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to an insufficient authentication mechanism in the ss-manager binary. A remote authenticated attacker can send a specially crafted network packets to ss-manager, cause an arbitrary binary to run and execute arbitrary code on the target system.
Remediation
Install update from vendor's website.