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CVE-2017-14143

CriticalPublished

The getUserzoneCookie function in Kaltura before 13.2.0 uses a hardcoded cookie secret to validate cookie signatures, which allows remote attackers to...

Published: Sep 19, 2017
Updated: Aug 5, 2024
Assigning CNA: mitre
Evidence observed: Oct 23, 2017

Primary CVSS

9.8/ 10Critical

nvd · CVSS 3.0

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS probability estimate

70.9%

High · next 30 days

Percentile: 99.4%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

The getUserzoneCookie function in Kaltura before 13.2.0 uses a hardcoded cookie secret to validate cookie signatures, which allows remote attackers to bypass an intended protection mechanism and consequently conduct PHP object injection attacks and execute arbitrary PHP code via a crafted userzone cookie.

Sources

Kaltura < 13.2.0 - Remote Code ExecutionExploit
Robin Verton · php · Oct 23, 2017
Kaltura - Remote PHP Code Execution over Cookie (Metasploit)Exploit
Metasploit · php · Jan 24, 2018

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