alert http any any -> [$HOME_NET,$HTTP_SERVERS] any (msg:"ET WEB_SPECIFIC_APPS Atlassian Confluence CVE-2023-22515 Step 2/2 Attempt"; flow:established,to_server; flowbits:set,ET.CVE-2023-22515.step2.request; http.method; content:"POST"; http.uri; content:"/setup/setupadministrator.action"; fast_pattern; http.header; content:"X-Atlassian-Token"; nocase; content:"|3a 20|no-check"; within:10; http.request_body; content:"username="; content:"password="; reference:url,confluence.atlassian.com/security/cve-2023-22515-privilege-escalation-vulnerability-in-confluence-data-center-and-server-1295682276.html; reference:url,www.rapid7.com/blog/post/2023/10/04/etr-cve-2023-22515-zero-day-privilege-escalation-in-confluence-server-and-data-center/; reference:url,attackerkb.com/topics/Q5f0ItSzw5/cve-2023-22515/rapid7-analysis; reference:cve,2023-22515; reference:cve,2023-22515; classtype:attempted-admin; sid:2048542; rev:1; metadata:affected_product Atlassian_Confluence, attack_target Web_Server, created_at 2023_10_12, cve CVE_2023_22515, deployment Perimeter, deployment Internal, deployment SSLDecrypt, performance_impact Low, confidence High, signature_severity Major, tag CISA_KEV, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_10_12; target:dest_ip;)