CVE-2017-14143
CriticalPublic exploitThe 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…
Published Sep 19, 2017 · Updated Aug 27, 2026
Key Facts
Patch immediately- CVE-2017-14143 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting Kaltura Server.
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 77% probability of exploitation in the next 30 days.
- Fixed versions are available, including Kaltura Server mercury-13.1.0.
- Brandefense priority: patch immediately, because it is very likely to be exploited soon.
CVSS v3.1
9.8
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
77%
Higher than 99.5% of all scored CVEs
Exploited in the wild
No known
Not in a known-exploited catalog
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2017-14143 brief as a PDF
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Description
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.
Affected Products
1 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Kaltura ServerKaltura | See advisory | mercury-13.1.0 |
Patched Releases
Kaltura Server
mercury-13.1.0
Timeline
Publicly disclosed
Sep 19, 2017
Last updated
Aug 27, 2026
Weakness Type
- CWE-798 Use of Hard-coded Credentials
References
- advisoryhttps://github.com/kaltura/server/commit/6a6d14328b7a1493e8c47f9565461e5f88be20c9#diff-0770640cc76112cbf77bebc604852682
- advisory100976
- exploitMSF kaltura_unserialize_cookie_rce.rb
- exploithttps://telekomsecurity.github.io/assets/advisories/20170912_kaltura-advisory.txt
- exploitExploitDB-43028
FAQ
Common Questions.
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.
Affected: Kaltura Server. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including Kaltura Server mercury-13.1.0.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.
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