ET WEB_SERVER Kubernetes Ingress NGINX Controller configuration-snippet Annotation Injection (CVE-2023-5044)

SID: 2061121Rev: 120 views

Sourceet/open

CreatedMarch 27, 2025

UpdatedMarch 27, 2025

Classificationweb-application-attack

alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET WEB_SERVER Kubernetes Ingress NGINX Controller configuration-snippet Annotation Injection (CVE-2023-5044)"; flow:established,to_server; http.method; content:"POST"; http.content_type; content:"application/json"; http.request_body; content:"|22|admission.k8s.io/v1|22 2c|"; content:"|22|nginx.ingress.kubernetes.io/configuration-snippet|22 3a|"; fast_pattern; pcre:"/^\s*?\x22[^\x2c]*?(?:content_by_lua|\x23|\x3b\x7d)/R"; reference:url,github.com/r0binak/CVE-2023-5043; reference:cve,2023-5044; classtype:web-application-attack; sid:2061121; rev:1; metadata:affected_product Kubernetes, attack_target Server, tls_state TLSDecrypt, created_at 2025_03_27, cve CVE_2023_5044, deployment Perimeter, deployment Internal, deployment SSLDecrypt, confidence High, signature_severity Major, tag Exploit, updated_at 2025_03_27, 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/r0binak/CVE-2023-5043
cve	2023-5044

Metadata

affected productKubernetes

attack targetServer

tls stateTLSDecrypt

created at2025_03_27

cveCVE-2023-5044

deploymentSSLDecrypt

confidenceHigh

signature severityMajor

tagExploit

updated at2025_03_27

mitre tactic idTA0001

mitre tactic nameInitial_Access

mitre technique idT1190

mitre technique nameExploit_Public_Facing_Application

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