ET WEB_SPECIFIC_APPS Zyxel DSL CPE Authenticated HTTP Command Injection (CVE-2024-40890)

7.0.35.0SID: 2060109Rev: 2Enabled150 views
History
Sourceet/open
Fileemerging-web_specific_apps.rules
CreatedFebruary 14, 2025
UpdatedNovember 6, 2026
Classificationweb-application-attack
alert http any any -> [$HOME_NET,$HTTP_SERVERS] any (msg:"ET WEB_SPECIFIC_APPS Zyxel DSL CPE Authenticated HTTP Command Injection (CVE-2024-40890)"; flow:established,to_server; http.method; content:"POST"; http.uri; content:"/pages/tabFW/disagnostic-general.cgi"; fast_pattern; http.request_body; content:"diagAddr|3d|"; pcre:"/^[^&]*?[\x0d\x0a](?!$)/R"; reference:url,vulncheck.com/blog/zyxel-http-vuln#cve-2024-40890-authenticated-http-vulnerability; reference:cve,2024-40890; classtype:web-application-attack; sid:2060109; rev:2; metadata:affected_product Zyxel, attack_target Networking_Equipment, created_at 2025_02_14, cve CVE_2024_40890, deployment Perimeter, deployment Internal, confidence High, signature_severity Major, tag CISA_KEV, updated_at 2026_11_06; target:dest_ip;)

References

urlvulncheck.com/blog/zyxel-http-vuln#cve-2024-40890-authenticated-http-vulnerability
cve2024-40890

Metadata

affected productZyxel
attack targetNetworking_Equipment
created at2025_02_14
deploymentInternal
confidenceHigh
signature severityMajor
tagCISA_KEV
updated at2026_11_06

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