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
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.007 (52.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 53rd percentile — 52.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000
Affected products
- Shadowsocks Shadowsocks-Libev — versions 3.3.2
- openSUSE Backports Sle — versions 15.0
- openSUSE Leap — versions 15.1
- Shadowsocks — versions Shadowsocks-libev 3.3.2
Weakness classification (CWE)
Public proof-of-concept exploits
References
- lists.opensuse.org/opensuse-security-announce/2019-12/msg00023.html (vendor-advisory, Mailing List, Third Party Advisory)
- lists.opensuse.org/opensuse-security-announce/2020-01/msg00061.html (vendor-advisory, Mailing List, Third Party Advisory)
- talosintelligence.com/vulnerability_reports/TALOS-2019-0958 (Exploit, Third Party Advisory, 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.