CVE-2020-8445

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Source
https://cve.org/CVERecord?id=CVE-2020-8445
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-8445.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2020-8445
Published
2020-01-30T01:15:10.917Z
Modified
2026-04-02T06:15:18.358337Z
Severity
  • 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

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.

References

Affected packages

Git / github.com/ossec/ossec-hids

Affected ranges

Type
GIT
Repo
https://github.com/ossec/ossec-hids
Events
Introduced
ec19fd9e712e8ee710ec7d29b9f1476a95913db8
Last affected
b1d087f83cd9693841f2baeede532397fbfa2d03
Database specific 
{
    "versions": [
        {
            "introduced": "2.7"
        },
        {
            "last_affected": "3.5.0"
        }
    ]
}

Affected versions

2.*
2.8.1
2.8.2
2.9.0
2.9.0-beta01
2.9.0-beta02
2.9.0-beta03
2.9.0-beta04
2.9.1
2.9.2
2.9.3
2.9.4
2.9rc1
2.9rc2
2.9rc3
2.9rc4
3.*
3.0.0
3.0beta01
3.0beta02
3.0beta03
3.0beta2
3.1.0
3.2.0
3.3.0
3.4.0
3.5.0
Other
snapshot/20150112
v2.*
v2.7
v2.7.1
v2.8.0
v2.8.3
v2.9.0beta05
v2.9.0beta06

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-8445.json"