Possible Citrix Session Recording SOAPAction Deserialization RCE (CVE-2023-6184) (via webserver)
- Category
- webserver
- Author
- HuntRule
- Published
- 2026-05-12
- Updated
- 2026-08-28
ATT&CK techniques
Initial AccessRecon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact
What it detects
This rule detects POST or M-POST requests to the Citrix Session Recording broker rem endpoints carrying a SOAPAction header. This maps to the .NET deserialization vulnerability where crafted SOAP requests to the RestApiStat and Player broker interfaces execute arbitrary code. An attacker uses this to gain remote code execution on the session recording server.
Reporting behind it
Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.
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