Auth bypass in Shadowsocks Shadowsocks-Libev
CVE-2019-5164
An exploitable code execution vulnerability exists in the ss-manager binary of Shadowsocks-libev 3.3.2. Specially crafted network packets sent to ss-manager can cause an arbitrary binary to run, resulting in code execution and privilege escalation. An attacker can send network packets to trigger this vulnerability.
Vulnerability class: Broken Authentication
EPSS: 0.007 (50.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Shadowsocks Shadowsocks-libev — versions 3.3.2
- Opensuse Backports_sle — versions 15.0
- Opensuse Leap — versions 15.1
- N/a Shadowsocks — versions Shadowsocks-libev 3.3.2
Weakness classification (CWE)
Public proof-of-concept exploits
References
- talos-cna@cisco.com (vendor-advisory, Mailing List, Third Party Advisory, x_refsource_SUSE)
- talos-cna@cisco.com (vendor-advisory, Mailing List, Third Party Advisory, x_refsource_SUSE)
- talos-cna@cisco.com (Exploit, Third Party Advisory, x_refsource_MISC, Mitigation)
Frequently asked questions
- What is CVE-2019-5164?
- CVE-2019-5164 is a high-severity vulnerability in Shadowsocks Shadowsocks-Libev, classified under Missing Authentication for Critical Function. CVSS score: 7.8/10. Published 2019-12-03.
- How severe is CVE-2019-5164?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2019-5164 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.