CVE-2018-20434
CVSS V2 High 10
CVSS V3 Critical 9.8
Description
LibreNMS 1.46 allows remote attackers to execute arbitrary OS commands by using the $_POST['community'] parameter to html/pages/addhost.inc.php during creation of a new device, and then making a /ajax_output.php?id=capture&format=text&type=snmpwalk&hostname=localhost request that triggers html/includes/output/capture.inc.php command mishandling.
Overview
- CVE ID
- CVE-2018-20434
- Assigner
- cve@mitre.org
- Vulnerability Status
- Modified
- Published Version
- 2019-04-24T21:29:00
- Last Modified Date
- 2019-06-04T23:29:00
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:librenms:librenms:1.46:*:*:*:*:*:*:* | 1 | OR |
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
- 3.0
- Vector String
- CVSS:3.0/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://shells.systems/librenms-v1-46-remote-code-execution-cve-2018-20434/ | Exploit Technical Description Third Party Advisory |
| https://gist.github.com/mhaskar/516df57aafd8c6e3a1d70765075d372d | Exploit Third Party Advisory |
| https://drive.google.com/file/d/1LcGmOY8x-TG-wnNr-cM_f854kxk0etva/view?usp=sharing | Permissions Required Third Party Advisory |
| http://packetstormsecurity.com/files/153188/LibreNMS-addhost-Command-Injection.html | |
| http://packetstormsecurity.com/files/153448/LibreNMS-1.46-addhost-Remote-Code-Execution.html |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2018-20434 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-20434 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 07:50:59 | Added to TrackCVE | |||
| 2022-12-03 20:03:25 | 2019-04-24T21:29Z | 2019-04-24T21:29:00 | CVE Published Date | updated |
| 2022-12-03 20:03:26 | 2019-06-04T23:29:00 | CVE Modified Date | updated | |
| 2022-12-03 20:03:26 | Modified | Vulnerability Status | updated |