PT-2020-16889 · Security Onion · Security Onion

Published 2020-11-23 · Updated 2021-07-21 · CVE-2020-27985

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Security Onion v2 versions prior to 2.3.10

Description The issue is related to an incorrect sudo configuration, allowing local users to obtain root access without using the sudo password. This can be achieved by editing and executing /home/<user>/SecurityOnion/setup/so-setup.

Recommendations For Security Onion v2 versions prior to 2.3.10, update to version 2.3.10 or later to resolve the issue. As a temporary workaround, consider restricting access to the /home/<user>/SecurityOnion/setup/so-setup file to prevent unauthorized execution.

Exploit

Fix

Missing Authentication

Weakness Enumeration

CWE-306

Related Identifiers

CVE-2020-27985

Affected Products

Security Onion

References · 6

• 🔥 https://s1gh.sh/cve-2020-27985-security-onion-local-privilege-escalation · Exploit
• https://github.com/Security-Onion-Solutions/securityonion/commit/b14670030349a2747a00ace665568ab5f51ac47b · Patch
• https://osv.dev/vulnerability/CVE-2020-27985 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-27985 · Security Note
• https://github.com/Security-Onion-Solutions/securityonion/releases · Note
• https://t.me/cibsecurity/16692 · Telegram Post