CVE-2020-8445
CVSS V2 High 10
CVSS V3 Critical 9.8
Description
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.
Overview
- CVE ID
- CVE-2020-8445
- Assigner
- cve@mitre.org
- Vulnerability Status
- Analyzed
- Published Version
- 2020-01-30T01:15:10
- Last Modified Date
- 2022-09-12T18:42:40
Weakness Enumerations
CPE Configuration (Product)
CPE | Vulnerable | Operator | Version Start | Version End |
---|---|---|---|---|
cpe:2.3:a:ossec:ossec:*:*:*:*:*:*:*:* | 1 | OR | 2.7 | 3.5.0 |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:L/Au:N/C:C/I:C/A:C
- Access Vector
- NETWORK
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- COMPLETE
- Integrity Impact
- COMPLETE
- Availability Impact
- COMPLETE
- Base Score
- 10
- Severity
- HIGH
- Exploitability Score
- 10
- Impact Score
- 10
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- HIGH
- Base Score
- 9.8
- Base Severity
- CRITICAL
- Exploitability Score
- 3.9
- Impact Score
- 5.9
References
Reference URL | Reference Tags |
---|---|
https://www.ossec.net/ | Vendor Advisory |
https://github.com/ossec/ossec-hids/issues/1814 | Third Party Advisory |
https://github.com/ossec/ossec-hids/issues/1821 | Third Party Advisory |
https://security.gentoo.org/glsa/202007-33 |
Sources
Source Name | Source URL |
---|---|
NIST | https://nvd.nist.gov/vuln/detail/CVE-2020-8445 |
MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-8445 |
History
Created | Old Value | New Value | Data Type | Notes |
---|---|---|---|---|
2022-05-10 16:39:40 | Added to TrackCVE | |||
2022-12-04 10:26:15 | 2020-01-30T01:15Z | 2020-01-30T01:15:10 | CVE Published Date | updated |
2022-12-04 10:26:15 | 2022-09-12T18:42:40 | CVE Modified Date | updated | |
2022-12-04 10:26:15 | Analyzed | Vulnerability Status | updated |