PT-2020-20147 · Trend Micro · Ossec-Hids

Cpu · CVE-2020-8447 · Published 2020-01-30 · Updated 2022-09-12

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions OSSEC-HIDS versions 2.7 through 3.5.0

Description The server component responsible for log analysis, ossec-analysisd, is vulnerable to a use-after-free during processing of syscheck formatted msgs. These messages are received from authenticated remote agents and delivered to the analysisd processing queue by ossec-remoted.

Recommendations For OSSEC-HIDS versions 2.7 through 3.5.0, consider disabling the ossec-analysisd component temporarily until a patch is available to prevent potential exploitation. Restrict access to the ossec-remoted component to minimize the risk of receiving malicious syscheck formatted msgs.

Exploit

Fix

Use After Free

Weakness Enumeration

CWE-416

Related Identifiers

CVE-2020-8447

Affected Products

Ossec-Hids

References · 7

• 🔥 https://github.com/ossec/ossec-hids/issues/1818 · Exploit
• https://osv.dev/vulnerability/CVE-2020-8447 · Vendor Advisory
• https://ossec.net · Vendor Advisory
• https://security.gentoo.org/glsa/202007-33 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-8447 · Security Note
• https://github.com/ossec/ossec-hids/issues/1821 · Note
• https://t.me/cvenotify/640 · Telegram Post