Auth bypass in Securityonionsolutions Security Onion
CVE-2020-27985
Security Onion v2 prior to 2.3.10 has an incorrect sudo configuration, which allows the administrative user to obtain root access without using the sudo password by editing and executing /home/<user>/SecurityOnion/setup/so-setup.
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: 0.005 (42.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 43rd percentile — 42.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
Weakness classification (CWE)
References
- github.com/Security-Onion-Solutions/securityonion/releases (Third Party Advisory, Release Notes)
- github.com/Security-Onion-Solutions/securityonion/commit/b14670030349a2747a00ac… (Patch, Third Party Advisory)
- s1gh.sh/cve-2020-27985-security-onion-local-privilege-escalation/ (Exploit, Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-27985?
- CVE-2020-27985 is a high-severity vulnerability in Securityonionsolutions Security Onion, classified under Missing Authentication for Critical Function. CVSS score: 7.8/10. Published 2020-11-23.
- How severe is CVE-2020-27985?
- High severity. CVSS v3 base score is 7.8 out of 10.