Loading...
Skip to main content

CVE-2015-1820 — Vulnerability in rest-client — CVE Details

CRITICAL

rest-client Gem Vulnerable to Session Fixation

Published August 13, 2018Updated February 16, 2024Source: osv

Summary

REST client for Ruby (aka rest-client) versions 1.6.1.a until 1.8.0 allow remote attackers to conduct session fixation attacks or obtain sensitive cookie information by leveraging passage of cookies set in a response to a redirect.

Advisory Timeline

  • First published August 13, 2018 (2982 days ago).
  • Last revised February 16, 2024 — 2012 days after initial publication.

Remediation

Upgrade to the fixed version using your package manager.

Bundler
Update rest-client to 1.8.0 or later
gem install rest-client -v 1.8.0

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (1)

Affects 1 ecosystem: rubygems (1).

PackageEcosystemAffectedFixed In
rest-client
rubygems
1.6.1, 1.6.1.a, 1.6.14, 1.6.2.a (+14 more)1.8.0

Vulnerability Classification

Common Weakness Enumeration (CWE) identifiers for this vulnerability type.

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 9.8 score means for each attack dimension.

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

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

Frequently Asked Questions

What is CVE-2015-1820?
rest-client Gem Vulnerable to Session Fixation This vulnerability has been assigned a severity rating of CRITICAL (CVSS score: 9.8/10).
How do I check if my project is affected by CVE-2015-1820?
CVE-2015-1820 affects rest-client. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2015-1820 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score
9.8

Exploitation is straightforward and causes maximum impact. Patch immediately.

Also Known As

GHSA-3fhf-6939-qg8p

Related CVEs

  • CVE-2019-15224
    CRITICAL

    rest-client Gem Contains Malicious Code

  • CVE-2026-55107
    CRITICAL

    kobako Sandbox Escape: guest eval reaches host RCE via method_missing → public_send (any bound Service)

  • CVE-2026-77602
    CRITICAL

    OpenC3 COSMOS: Authenticated remote code execution via the user-writable config overlay (table definitions, cmd/tlm definitions, and script suites)

Check if you're affected

Scan your dependencies to see if this vulnerability affects your projects.

Scan Your Dependencies