CVE-2015-1820: Rest client Rest-client Gem Vulnerable To Session Vulnerability

CRITICAL
Advisory Identifier: GHSA-3fhf-6939-qg8p
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CVSS 9.8
CWE-384
Published
Advisory Summary

CVE-2015-1820 is a CRITICAL (CVSS 9.8) rest-client gem vulnerable to session vulnerability (CWE-384: Session Fixation) affecting Rest client libraries in the RubyGems ecosystem. The issue involves rest-client gem vulnerable to session fixation. Remediation is available by upgrading affected packages to version 1.8.0.

CVE-2015-1820 at a Glance

CVE Identifier CVE-2015-1820
GHSA Identifier GHSA-3fhf-6939-qg8p
Severity CRITICAL
CVSS v3.1 Base Score 9.8
CWE Classification CWE-384: Session Fixation
Affected Product Rest client
Package Ecosystem RubyGems
Published Date
Last Updated

Security Impact

CVSS: 9.8

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity High (I:H)
Availability High (A:H)

How to Fix CVE-2015-1820

To remediate this vulnerability, upgrade all affected Rest client dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

rest-client fixed: 1.8.0 
Upgrade rest-client to 1.8.0
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for rest-client

How to Check if You Are Affected

To determine whether your application is affected by CVE-2015-1820, inspect your project dependencies for Rest client:

inspect dependencies for rest-client

Analyze the terminal output to locate any version of Rest client in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.8.0), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-384: Session Fixation, where authenticating a user, or otherwise establishing a new user session, without invalidating any existing session identifier gives an attacker the opportunity to steal authenticated sessions. In Rest client, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

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.

CVE-2015-1820 Affected Rest client Versions

1 component(s)
Fixed Versions:
1.8.0
Product / Package Ecosystem Affected Versions Fixed Version
rest-client
gem/rest-client
RubyGems
≥ 1.6.1.a
< 1.8.0
1.8.0

References

NVD — CVE-2015-1820 NVD
https://nvd.nist.gov/vuln/detail/CVE-2015-1820
Rest client Source Repository REPOSITORY
https://github.com/rest-client/rest-client/issues/369
bugzilla.redhat.com/show_bug.cgi WEB
https://bugzilla.redhat.com/show_bug.cgi?id=1205291
Rest client Source Repository REPOSITORY
https://github.com/rest-client/rest-client
rubygems.org/gems/rest-client/ve... WEB
https://rubygems.org/gems/rest-client/versions/1.6.1.a
Rest client Security Information SECURITY
https://web.archive.org/web/20200228080106/http://www.securityfocus.com/bid/73295
Rest client Security Information SECURITY
http://www.openwall.com/lists/oss-security/2015/03/24/3

Frequently Asked Questions

What is CVE-2015-1820?
CVE-2015-1820 is a security vulnerability in Rest client involving rest-client Gem Vulnerable to Session Fixation under CWE-384: Session Fixation.
Which Rest client versions are affected?
Affected versions include releases prior to 1.8.0 across affected packages: rest-client.
What version fixes CVE-2015-1820?
Upgrading to 1.8.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is rest-client affected?
Yes, rest-client is affected in releases prior to 1.8.0. Upgrade your dependency to 1.8.0 or later.
What is the CVSS score of CVE-2015-1820?
CVE-2015-1820 has a CVSS v3.1 base score of 9.8 (CRITICAL) with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2015-1820?
CVE-2015-1820 is classified under CWE-384: Session Fixation (Authenticating a user, or otherwise establishing a new user session, without invalidating any existing session identifier gives an attacker the opportunity to steal authenticated sessions.).
How can I check RubyGems dependencies for CVE-2015-1820?
Run the dependency tree command: 'inspect dependencies for rest-client'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-3fhf-6939-qg8p",
  "modified" : "2023-09-05T21:42:43Z",
  "published" : "2018-08-13T20:47:22Z",
  "aliases" : [ "CVE-2015-1820" ],
  "summary" : "rest-client Gem Vulnerable to Session Fixation",
  "details" : "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.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "RubyGems",
      "name" : "rest-client"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "1.6.1.a"
      }, {
        "fixed" : "1.8.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2015-1820"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/rest-client/rest-client/issues/369"
  }, {
    "type" : "WEB",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=1205291"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/rest-client/rest-client"
  }, {
    "type" : "WEB",
    "url" : "https://rubygems.org/gems/rest-client/versions/1.6.1.a"
  }, {
    "type" : "WEB",
    "url" : "https://web.archive.org/web/20200228080106/http://www.securityfocus.com/bid/73295"
  }, {
    "type" : "WEB",
    "url" : "http://www.openwall.com/lists/oss-security/2015/03/24/3"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-384" ],
    "severity" : "CRITICAL",
    "github_reviewed" : true,
    "github_reviewed_at" : "2020-06-16T20:54:58Z",
    "nvd_published_at" : null
  }
}