Possible Qlik Sense Unauthenticated Path Probe via TTF Extension Bypass

ATT&CK techniques

Initial Access

Recon
Resource Dev
Initial Access
- T1190Exploit Public-Facing Application
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects an unauthenticated request that appends a bogus .ttf extension to the Qlik Sense product-info.json endpoint, a request-shaping trick used to bypass authentication and fingerprint vulnerable Qlik Sense builds prior to Cactus ransomware exploitation. The crafted extension query indicates reconnaissance against the CVE-2023-41265 style authentication bypass.

Reporting behind it

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Possible Qlik Sense Unauthenticated Path Probe via TTF Extension Bypass

Pivot detection · T1190 · 9 related

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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