ET WEB_SPECIFIC_APPS Nexxt Solutions um_web_upgrade.cgi filename Parameter Command Injection Attempt (CVE-2025-52379)
Sourceet/open
CreatedJuly 15, 2025
UpdatedJuly 15, 2025
Classificationattempted-admin
alert http any any -> $HOME_NET any (msg:"ET WEB_SPECIFIC_APPS Nexxt Solutions um_web_upgrade.cgi filename Parameter Command Injection Attempt (CVE-2025-52379)"; flow:established,to_server; http.method; content:"POST"; http.uri; bsize:23; content:"/web/um_web_upgrade.cgi"; fast_pattern; http.request_body; content:"Content-Disposition|3a 20|form-data|3b 20|name|3d 22|put_file|22 3b 20|filename|3d 22|"; pcre:"/^[^\x26]*?(?:(?:\x3b|%3[Bb])|(?:\x0a|%0[Aa])|(?:\x60|%60)|(?:\x7c|%7[Cc])|(?:\x24|%24))+/R"; reference:url,github.com/Vagebondcur/nexxt-solutions-NCM-X1800-exploits; reference:cve,2025-52379; classtype:attempted-admin; sid:2063496; rev:1; metadata:affected_product Nexxt, attack_target Networking_Equipment, tls_state plaintext, created_at 2025_07_15, cve CVE_2025_52379, deployment Perimeter, deployment Internal, performance_impact Low, confidence High, signature_severity Major, tag Exploit, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2025_07_15, 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 productNexxt
attack targetNetworking_Equipment
tls stateplaintext
created at2025_07_15
deploymentInternal
performance impactLow
confidenceHigh
signature severityMajor
tagDescription_Generated_By_Proofpoint_Nexus
updated at2025_07_15
mitre tactic idTA0001
mitre tactic nameInitial_Access
mitre technique idT1190
mitre technique nameExploit_Public_Facing_Application
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