CVE-2020-27985 json
Security Onion v2 prior to 2.3.10 has an incorrect sudo configuration, which allows the administrative user to obtain root access without u…
published 2020-11-23 5 y ago modified 2026-06-17 4 mo ago also EUVD-2020-20477
- cvss
- 7.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 45%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- securityonionsolutions security_onion 2.3.10
Exploit prediction
0.53% chance of exploitation in the next 30 days, higher than 45% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- s1gh.sh https://s1gh.sh/cve-2020-27985-security-onion-local-privilege-escalation/ referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 7.2 | AV:L/AC:L/Au:N/C:C/I:C/A:C |
Classification
- Weakness
-
- CWE-306 Missing Authentication for Critical Functionality
References
-
github.com
/Security-Onion-Solutions/securityonion/commit/b14670030349a2747a00ace665568ab5f51ac47b
patch, third-party-advisory
-
s1gh.sh
/cve-2020-27985-security-onion-local-privilege-escalation/
exploit, patch, third-party-advisory
-
github.com
/Security-Onion-Solutions/securityonion/releases
release-notes, third-party-advisory
Sources
- CVE List CVE-2020-27985
- NVD CVE-2020-27985
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