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TI-2020-06782 Aliases CVE-2020-8445GHSA-9vhf-xgg9-m6cf

In OSSEC-HIDS 2.7 through 3.5.0, the OS_CleanMSG function in ossec-analysisd doesn't…

Priority MEDIUM 46CWE-20Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

In OSSEC-HIDS 2.7 through 3.5.0, the OS_CleanMSG function in ossec-analysisd doesn't remove or encode terminal control characters or newlines from processed log messages. In many cases, those characters are later logged. Because newlines (\n) are permitted in messages processed by ossec-analysisd, it may be possible to inject nested events into the ossec log. Use of terminal control characters may allow obfuscating events or executing commands when viewed through vulnerable terminal emulators. This may be an unauthenticated remote attack for certain types and origins of logged data.

Why it matters now

EPSS 0.02277 83rd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:ossec:ossec:*:*:*:*:*:*:*:*2.7 – 3.5.0VulnerableOSSEC
  • cpe:2.3:a:ossec:ossec:*:*:*:*:*:*:*:* Versions 2.7 – 3.5.0 Vulnerable ·OSSEC

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-8445
  2. 2026-10-03 Alias added: GHSA-9vhf-xgg9-m6cf

References

Advisory 4

  • TI-2020-06781 In OSSEC-HIDS 2.7 through 3.5.0, the server component responsible for log analysis… CVSS 3.1CRITICAL 9.8
  • TI-2020-06780 In OSSEC-HIDS 2.7 through 3.5.0, the server component responsible for log analysis… CVSS 3.1CRITICAL 9.8
  • TI-2020-06784 In OSSEC-HIDS 2.7 through 3.5.0, the server component responsible for log analysis… CVSS 3.1CRITICAL 9.8
  • TI-2020-06779 In OSSEC-HIDS 2.7 through 3.5.0, the server component responsible for log analysis… CVSS 3.1HIGH 8.8
  • TI-2014-04316 host-deny.sh in OSSEC before 2.8.1 writes to temporary files with predictable filenames… CVSS 2.0HIGH 7.2
  • TI-2021-09320 An issue was discovered in OSSEC 3.6.0. CVSS 3.1HIGH 7.5
See all 10 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences