Qlik · Sense

CVE-2023-48365

Qlik Sense HTTP Tunneling Vulnerability

Exploited in attacks Used by ransomware Critical 9.6 Attack chance: 48%

What it is

Qlik Sense Enterprise for Windows before August 2023 Patch 2 allows unauthenticated remote code execution, aka QB-21683. Due to improper validation of HTTP headers, a remote attacker is able to elevate their privilege by tunneling HTTP requests, allowing them to execute HTTP requests on the backend server that hosts the repository application. The fixed versions are August 2023 Patch 2, May 2023 Patch 6, February 2023 Patch 10, November 2022 Patch 12, August 2022 Patch 14, May 2022 Patch 16, February 2022 Patch 15, and November 2021 Patch 17. NOTE: this issue exists because of an incomplete fix for CVE-2023-41265.

CISA: Qlik Sense contains an HTTP tunneling vulnerability that allows an attacker to escalate privileges and execute HTTP requests on the backend server hosting the software.

What to do

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Deadline for US federal agencies: February 3, 2025

Added to the CISA list: January 13, 2025
Published: November 15, 2023
Severity: Critical 9.6 CVSS 3.1
Chance of attacks in the next 30 days (EPSS): 48% in the top 1.2% of all known vulnerabilities
Weakness: CWE-444
More details: NVD · CVE.org · CISA

All references (1)

https://community.qlik.com/t5/Official-Support-Articles/Critical-Security-fixes-for-Qlik-Sense-Enterprise-for…

More exploited flaws from Qlik

Added	Vulnerability	Product	Severity	Attack chance
Dec 7, 2023	HTTP TunnelingCVE-2023-41265used by ransomware	Sense	Critical 9.6	88%
Dec 7, 2023	Path TraversalCVE-2023-41266used by ransomware	Sense	High 8.2	85%

All of them →

Sources: Known Exploited Vulnerabilities (CISA, public domain), CVE records (cve.org) and EPSS (FIRST). The chance of attacks is the EPSS estimate that someone will try to exploit the flaw in the next 30 days.