HTTP request smuggling in Qlik Sense Enterprise for Windows

1) Inconsistent interpretation of HTTP requests

EUVDB-ID: #VU83603

Risk: High

CVSSv3.1: 9.2 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N/E:H/RL:O/RC:C]

CVE-ID: CVE-2023-48365

CWE-ID: CWE-444 - Inconsistent Interpretation of HTTP Requests ('HTTP Request Smuggling')

Exploit availability: No

Description

The vulnerability allows a remote user to perform HTTP request smuggling attacks.

The vulnerability exists due to improper validation of HTTP requests caused by an incomplete fix for #VU80193 (CVE-2023-41265). A remote authenticated user can elevate their privileges within the application by tunneling HTTP requests.

Note, the vulnerability is being actively exploited in the wild.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Qlik Sense Enterprise for Windows: before November 2022 Patch 12

External links

http://community.qlik.com/t5/Official-Support-Articles/Critical-Security-fixes-for-Qlik-Sense-Enterprise-for-Windows/tac-p/2120510

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

Yes. This vulnerability is being exploited in the wild.