ET WEB_SPECIFIC_APPS AvTech Config.cgi Network.SMTP Multiple Parameters Command Injection Attempt (CVE-2025-57200)
Sourceet/open
CreatedDecember 3, 2025
UpdatedDecember 3, 2025
Classificationattempted-admin
alert http any any -> $HOME_NET any (msg:"ET WEB_SPECIFIC_APPS AvTech Config.cgi Network.SMTP Multiple Parameters Command Injection Attempt (CVE-2025-57200)"; flow:established,to_server; http.method; content:"POST"; http.uri; bsize:24; content:"/cgi-bin/user/Config.cgi"; fast_pattern; http.request_body; content:"action|3d|set"; pcre:"/Network\x2eSMTP\x2e.*\x3d[^\x26]*?(?:(?:\x3b|%3[Bb])|(?:\x0a|%0[Aa])|(?:\x60|%60)|(?:\x7c|%7[Cc])|(?:\x24|%24))+/"; reference:url,xchg-rax-rax.github.io/2025/10/13/avtech_vulnerabilites.html; reference:cve,2025-57200; classtype:attempted-admin; sid:2066001; rev:1; metadata:affected_product AvTech, attack_target Networking_Equipment, tls_state plaintext, created_at 2025_12_03, cve CVE_2025_57200, deployment Perimeter, deployment Internal, performance_impact Low, confidence High, signature_severity Major, tag Exploit, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2025_12_03, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application; target:dest_ip;)
Metadata
affected productAvTech
attack targetNetworking_Equipment
tls stateplaintext
created at2025_12_03
deploymentInternal
performance impactLow
confidenceHigh
signature severityMajor
tagDescription_Generated_By_Proofpoint_Nexus
updated at2025_12_03
mitre tactic idTA0001
mitre tactic nameInitial_Access
mitre technique idT1190
mitre technique nameExploit_Public_Facing_Application
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