ET WEB_SPECIFIC_APPS SAP NetWeaver Application Server Java Post-Auth Arbitrary File Upload (CVE-2021-38163)

SID: 2061735Rev: 161 views

Sourceet/open

CreatedApril 18, 2025

UpdatedApril 18, 2025

Classificationweb-application-attack

alert http any any -> $HOME_NET any (msg:"ET WEB_SPECIFIC_APPS SAP NetWeaver Application Server Java Post-Auth Arbitrary File Upload (CVE-2021-38163)"; flow:established,to_server; http.method; content:"GET"; http.uri; content:"/irj/servlet/prt/portal/prtroot/com.sap.visualcomposer.VCParMigrator|3f|"; fast_pattern; content:"parName|3d|"; pcre:"/^[^\x26]*?(?:(?:\x2e|%2[Ee]){1,2}(?:\x2f|\x5c|%5[Cc]|%2[Ff]){1,}){2,}/R"; reference:url,github.com/purpleteam-ru/CVE-2021-38163; reference:cve,2021-38163; classtype:web-application-attack; sid:2061735; rev:1; metadata:affected_product SAP, attack_target Server, tls_state TLSDecrypt, created_at 2025_04_18, cve CVE_2021_38163, deployment Perimeter, deployment Internal, deployment SSLDecrypt, confidence High, signature_severity Major, tag Exploit, updated_at 2025_04_18, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application; target:dest_ip;)

References

url	github.com/purpleteam-ru/CVE-2021-38163
cve	2021-38163

Metadata

affected productSAP

attack targetServer

tls stateTLSDecrypt

created at2025_04_18

cveCVE-2021-38163

deploymentSSLDecrypt

confidenceHigh

signature severityMajor

tagExploit

updated at2025_04_18

mitre tactic idTA0001

mitre tactic nameInitial_Access

mitre technique idT1190

mitre technique nameExploit_Public_Facing_Application

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