Possible Citrix ShareFile Unauthenticated Upload Path Traversal Webshell (CVE-2023-24489) (via webserver)
- Category
- webserver
- Author
- HuntRule
- Published
- 2026-09-08
- Updated
- 2026-09-08
ATT&CK techniques
Initial Access → PersistenceRecon
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 unauthenticated POST requests to the ShareFile storage controller upload endpoints carrying a traversal uploadid and archive extraction flags. This maps to CVE-2023-24489 where a cryptographic flaw allows uploading and unzipping an ASPX webshell outside the intended directory. An attacker uses this to achieve remote code execution and persistence.
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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