ET EXPLOIT [CISA AA21-336A] Zoho ManageEngine ServiceDesk Possible Exploitation Activity (CVE-2021-44077)

7.0.35.0SID: 2034577Rev: 3Enabled1 views
History
Sourceet/open
Fileemerging-exploit.rules
CreatedDecember 3, 2021
UpdatedNovember 6, 2026
Classificationattempted-admin
alert http any any -> [$HOME_NET,$HTTP_SERVERS] any (msg:"ET EXPLOIT [CISA AA21-336A] Zoho ManageEngine ServiceDesk Possible Exploitation Activity (CVE-2021-44077)"; flow:established,to_server; http.method; content:"POST"; http.uri; content:"/RestAPI/ImportTechnicians"; fast_pattern; http.request_body; content:"name|3d 22|theFile|22|"; content:"filename|3d 22|"; reference:url,us-cert.cisa.gov/ncas/alerts/aa21-336a; reference:cve,2021-44077; reference:url,attackerkb.com/topics/qv2aD8YfMN/cve-2021-44077/rapid7-analysis; classtype:attempted-admin; sid:2034577; rev:3; metadata:attack_target Server, created_at 2021_12_03, cve CVE_2021_44077, deployment Perimeter, deployment Internal, confidence Medium, signature_severity Major, tag Exploit, tag possible_exploitation, tag CISA_KEV, updated_at 2026_11_06, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application;)

References

urlus-cert.cisa.gov/ncas/alerts/aa21-336a
cve2021-44077
urlattackerkb.com/topics/qv2aD8YfMN/cve-2021-44077/rapid7-analysis

Metadata

attack targetServer
created at2021_12_03
deploymentInternal
confidenceMedium
signature severityMajor
tagCISA_KEV
updated at2026_11_06
mitre tactic idTA0001
mitre tactic nameInitial_Access
mitre technique idT1190
mitre technique nameExploit_Public_Facing_Application

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