CVE-2013-0256: Rdoc Cross-Site Scripting Vulnerability

MODERATE
Advisory Identifier: GHSA-v2r9-c84j-v7xm
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CWE-79
Published
Advisory Summary

CVE-2013-0256 is a MODERATE cross-site scripting vulnerability (CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) affecting Rdoc libraries in the RubyGems ecosystem. The issue involves rdoc contains xss vulnerability. Remediation is available by upgrading affected packages to version 3.12.1.

CVE-2013-0256 at a Glance

CVE Identifier CVE-2013-0256
GHSA Identifier GHSA-v2r9-c84j-v7xm
Severity MODERATE
CVSS v3.1 Base Score N/A
CWE Classification CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Product Rdoc
Package Ecosystem RubyGems
Published Date
Last Updated

How to Fix CVE-2013-0256

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

rdoc fixed: 3.12.1 
Upgrade rdoc to 3.12.1
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 rdoc

How to Check if You Are Affected

To determine whether your application is affected by CVE-2013-0256, inspect your project dependencies for Rdoc:

inspect dependencies for rdoc

Analyze the terminal output to locate any version of Rdoc in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 3.12.1), 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-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'), where the product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. In Rdoc, 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

darkfish.js in RDoc 2.3.0 through 3.12 and 4.x before 4.0.0.preview2.1, as used in Ruby, does not properly generate documents, which allows remote attackers to conduct cross-site scripting (XSS) attacks via a crafted URL.

CVE-2013-0256 Affected Rdoc Versions

1 component(s)
Fixed Versions:
3.12.1
Product / Package Ecosystem Affected Versions Fixed Version
rdoc
gem/rdoc
RubyGems
≥ 2.3.0
< 3.12.1
3.12.1

References

NVD — CVE-2013-0256 NVD
https://nvd.nist.gov/vuln/detail/CVE-2013-0256
Security Fix Commit FIX COMMIT
https://github.com/rdoc/rdoc/commit/ffa87887ee0517793df7541629a470e331f9fe60
bugzilla.redhat.com/show_bug.cgi WEB
https://bugzilla.redhat.com/show_bug.cgi?id=907820
GitHub Advisory / Wiki ADVISORY
https://github.com/advisories/GHSA-v2r9-c84j-v7xm
Rdoc Source Repository REPOSITORY
https://github.com/rdoc/rdoc
Rdoc Source Repository REPOSITORY
https://github.com/rubysec/ruby-advisory-db/blob/master/gems/rdoc/CVE-2013-0256.yml
web.archive.org/web/20130402173730/... WEB
https://web.archive.org/web/20130402173730/http://blog.segment7.net:80/2013/02/06/rdoc-xss-vulnerability-cve-2013-0256-releases-3-9-5-3-12-1-4-0-0-rc-2
Rdoc Security Information SECURITY
http://lists.opensuse.org/opensuse-security-announce/2013-04/msg00015.html
lists.opensuse.org/opensuse-updates/20... WEB
http://lists.opensuse.org/opensuse-updates/2013-02/msg00048.html
rhn.redhat.com/errata/rhsa-2013-06... WEB
http://rhn.redhat.com/errata/RHSA-2013-0686.html
rhn.redhat.com/errata/rhsa-2013-07... WEB
http://rhn.redhat.com/errata/RHSA-2013-0701.html
rhn.redhat.com/errata/rhsa-2013-07... WEB
http://rhn.redhat.com/errata/RHSA-2013-0728.html
www.ruby-lang.org/en/news/2013/02/06/... WEB
http://www.ruby-lang.org/en/news/2013/02/06/rdoc-xss-cve-2013-0256
www.ubuntu.com/usn/usn-1733-1 WEB
http://www.ubuntu.com/usn/USN-1733-1

Frequently Asked Questions

What is CVE-2013-0256?
CVE-2013-0256 is a security vulnerability in Rdoc involving RDoc contains XSS vulnerability under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting').
Which Rdoc versions are affected?
Affected versions include releases prior to 3.12.1 across affected packages: rdoc.
What version fixes CVE-2013-0256?
Upgrading to 3.12.1 (or the latest patched release for your respective branch) resolves the vulnerability.
Is rdoc affected?
Yes, rdoc is affected in releases prior to 3.12.1. Upgrade your dependency to 3.12.1 or later.
What CWE is associated with CVE-2013-0256?
CVE-2013-0256 is classified under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') (The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.).
How can I check RubyGems dependencies for CVE-2013-0256?
Run the dependency tree command: 'inspect dependencies for rdoc'. 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-v2r9-c84j-v7xm",
  "modified" : "2023-07-05T20:39:56Z",
  "published" : "2017-10-24T18:33:37Z",
  "aliases" : [ "CVE-2013-0256" ],
  "summary" : "RDoc contains XSS vulnerability",
  "details" : "darkfish.js in RDoc 2.3.0 through 3.12 and 4.x before 4.0.0.preview2.1, as used in Ruby, does not properly generate documents, which allows remote attackers to conduct cross-site scripting (XSS) attacks via a crafted URL.",
  "severity" : [ ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "RubyGems",
      "name" : "rdoc"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "2.3.0"
      }, {
        "fixed" : "3.12.1"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2013-0256"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/rdoc/rdoc/commit/ffa87887ee0517793df7541629a470e331f9fe60"
  }, {
    "type" : "WEB",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=907820"
  }, {
    "type" : "ADVISORY",
    "url" : "https://github.com/advisories/GHSA-v2r9-c84j-v7xm"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/rdoc/rdoc"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/rubysec/ruby-advisory-db/blob/master/gems/rdoc/CVE-2013-0256.yml"
  }, {
    "type" : "WEB",
    "url" : "https://web.archive.org/web/20130402173730/http://blog.segment7.net:80/2013/02/06/rdoc-xss-vulnerability-cve-2013-0256-releases-3-9-5-3-12-1-4-0-0-rc-2"
  }, {
    "type" : "WEB",
    "url" : "http://lists.opensuse.org/opensuse-security-announce/2013-04/msg00015.html"
  }, {
    "type" : "WEB",
    "url" : "http://lists.opensuse.org/opensuse-updates/2013-02/msg00048.html"
  }, {
    "type" : "WEB",
    "url" : "http://rhn.redhat.com/errata/RHSA-2013-0686.html"
  }, {
    "type" : "WEB",
    "url" : "http://rhn.redhat.com/errata/RHSA-2013-0701.html"
  }, {
    "type" : "WEB",
    "url" : "http://rhn.redhat.com/errata/RHSA-2013-0728.html"
  }, {
    "type" : "WEB",
    "url" : "http://www.ruby-lang.org/en/news/2013/02/06/rdoc-xss-cve-2013-0256"
  }, {
    "type" : "WEB",
    "url" : "http://www.ubuntu.com/usn/USN-1733-1"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-79" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2020-06-16T21:56:28Z",
    "nvd_published_at" : "2013-03-01T05:40:00Z"
  }
}