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TI-2013-00197 Aliases CVE-2013-0263GHSA-xc85-32mf-xpv8

Rack::Session::Cookie in Rack 1.5.x before 1.5.2, 1.4.x before 1.4.5, 1.3.x before…

Priority LOW 32Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
— Not recorded in CVSS 2.0
Attack complexity
High
Impact type
—
Confidentiality · integrity · availability
Partial · Partial · Partial
Fix status
Partial Red Hat: 3 fixed, 1 without a fix

Attack profile from CVSS 2.0 · NVD. Fix status from CNA, GitHub and Red Hat.

Summary

Rack::Session::Cookie in Rack 1.5.x before 1.5.2, 1.4.x before 1.4.5, 1.3.x before 1.3.10, 1.2.x before 1.2.8, and 1.1.x before 1.1.6 allows remote attackers to guess the session cookie, gain privileges, and execute arbitrary code via a timing attack involving an HMAC comparison function that does not run in constant time.

Why it matters now

EPSS 0.05383 92nd percentileScored 2026-11-07
Fix Partial rack (RubyGems): 1.5.2, 1.4.5, 1.3.10 +2Red Hat: 2 advisoriesRed Hat: 3 fixed, 1 without a fix

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
—rack (RubyGems)1.5.0 to before 1.5.21.5.2Patch availableGHSA-xc85-32mf-xpv8
—rack (RubyGems)1.4.0 to before 1.4.51.4.5Patch availableGHSA-xc85-32mf-xpv8
—rack (RubyGems)1.3.0 to before 1.3.101.3.10Patch availableGHSA-xc85-32mf-xpv8
—rack (RubyGems)1.2.0 to before 1.2.81.2.8Patch availableGHSA-xc85-32mf-xpv8
—rack (RubyGems)1.1.0 to before 1.1.61.1.6Patch availableGHSA-xc85-32mf-xpv8
  • — Vendor— Affected all versions Fixed in — No fix listed CNA
  • rack (RubyGems) Vendor— Affected 1.5.0 to before 1.5.2 Fixed in 1.5.2 Patch available GHSA-xc85-32mf-xpv8
  • rack (RubyGems) Vendor— Affected 1.4.0 to before 1.4.5 Fixed in 1.4.5 Patch available GHSA-xc85-32mf-xpv8
  • rack (RubyGems) Vendor— Affected 1.3.0 to before 1.3.10 Fixed in 1.3.10 Patch available GHSA-xc85-32mf-xpv8
  • rack (RubyGems) Vendor— Affected 1.2.0 to before 1.2.8 Fixed in 1.2.8 Patch available GHSA-xc85-32mf-xpv8
  • rack (RubyGems) Vendor— Affected 1.1.0 to before 1.1.6 Fixed in 1.1.6 Patch available GHSA-xc85-32mf-xpv8

CPE configurations NVD · 28

CPEVersionsRoleVendor
cpe:2.3:a:rack_project:rack:1.5.0:*:*:*:*:*:*:*1.5.0VulnerableRack Project
cpe:2.3:a:rack_project:rack:1.5.1:*:*:*:*:*:*:*1.5.1VulnerableRack Project
cpe:2.3:a:rack_project:rack:1.4.0:*:*:*:*:*:*:*1.4.0VulnerableRack Project
cpe:2.3:a:rack_project:rack:1.4.1:*:*:*:*:*:*:*1.4.1VulnerableRack Project
cpe:2.3:a:rack_project:rack:1.4.2:*:*:*:*:*:*:*1.4.2VulnerableRack Project
cpe:2.3:a:rack_project:rack:1.4.3:*:*:*:*:*:*:*1.4.3VulnerableRack Project
cpe:2.3:a:rack_project:rack:1.4.4:*:*:*:*:*:*:*1.4.4VulnerableRack Project
cpe:2.3:a:rack_project:rack:1.3.0:*:*:*:*:*:*:*1.3.0VulnerableRack Project
cpe:2.3:a:rack_project:rack:1.3.1:*:*:*:*:*:*:*1.3.1VulnerableRack Project
cpe:2.3:a:rack_project:rack:1.3.2:*:*:*:*:*:*:*1.3.2VulnerableRack Project
  • cpe:2.3:a:rack_project:rack:1.5.0:*:*:*:*:*:*:* Versions 1.5.0 Vulnerable ·Rack Project
  • cpe:2.3:a:rack_project:rack:1.5.1:*:*:*:*:*:*:* Versions 1.5.1 Vulnerable ·Rack Project
  • cpe:2.3:a:rack_project:rack:1.4.0:*:*:*:*:*:*:* Versions 1.4.0 Vulnerable ·Rack Project
  • cpe:2.3:a:rack_project:rack:1.4.1:*:*:*:*:*:*:* Versions 1.4.1 Vulnerable ·Rack Project
  • cpe:2.3:a:rack_project:rack:1.4.2:*:*:*:*:*:*:* Versions 1.4.2 Vulnerable ·Rack Project
  • cpe:2.3:a:rack_project:rack:1.4.3:*:*:*:*:*:*:* Versions 1.4.3 Vulnerable ·Rack Project
  • cpe:2.3:a:rack_project:rack:1.4.4:*:*:*:*:*:*:* Versions 1.4.4 Vulnerable ·Rack Project
  • cpe:2.3:a:rack_project:rack:1.3.0:*:*:*:*:*:*:* Versions 1.3.0 Vulnerable ·Rack Project
  • cpe:2.3:a:rack_project:rack:1.3.1:*:*:*:*:*:*:* Versions 1.3.1 Vulnerable ·Rack Project
  • cpe:2.3:a:rack_project:rack:1.3.2:*:*:*:*:*:*:* Versions 1.3.2 Vulnerable ·Rack Project
Show 18 more CPE
CPEVersionsRoleVendor
cpe:2.3:a:rack_project:rack:1.3.3:*:*:*:*:*:*:*1.3.3VulnerableRack Project
cpe:2.3:a:rack_project:rack:1.3.4:*:*:*:*:*:*:*1.3.4VulnerableRack Project
cpe:2.3:a:rack_project:rack:1.3.5:*:*:*:*:*:*:*1.3.5VulnerableRack Project
cpe:2.3:a:rack_project:rack:1.3.6:*:*:*:*:*:*:*1.3.6VulnerableRack Project
cpe:2.3:a:rack_project:rack:1.3.7:*:*:*:*:*:*:*1.3.7VulnerableRack Project
cpe:2.3:a:rack_project:rack:1.3.8:*:*:*:*:*:*:*1.3.8VulnerableRack Project
cpe:2.3:a:rack_project:rack:1.3.9:*:*:*:*:*:*:*1.3.9VulnerableRack Project
cpe:2.3:a:rack_project:rack:1.2.0:*:*:*:*:*:*:*1.2.0VulnerableRack Project
cpe:2.3:a:rack_project:rack:1.2.1:*:*:*:*:*:*:*1.2.1VulnerableRack Project
cpe:2.3:a:rack_project:rack:1.2.2:*:*:*:*:*:*:*1.2.2VulnerableRack Project
cpe:2.3:a:rack_project:rack:1.2.3:*:*:*:*:*:*:*1.2.3VulnerableRack Project
cpe:2.3:a:rack_project:rack:1.2.4:*:*:*:*:*:*:*1.2.4VulnerableRack Project
cpe:2.3:a:rack_project:rack:1.2.6:*:*:*:*:*:*:*1.2.6VulnerableRack Project
cpe:2.3:a:rack_project:rack:1.2.7:*:*:*:*:*:*:*1.2.7VulnerableRack Project
cpe:2.3:a:rack_project:rack:1.1.0:*:*:*:*:*:*:*1.1.0VulnerableRack Project
cpe:2.3:a:rack_project:rack:1.1.4:*:*:*:*:*:*:*1.1.4VulnerableRack Project
cpe:2.3:a:rack_project:rack:1.1.5:*:*:*:*:*:*:*1.1.5VulnerableRack Project
cpe:2.3:a:rack_project:rack:1.1.6:*:*:*:*:*:*:*1.1.6VulnerableRack Project
  • cpe:2.3:a:rack_project:rack:1.3.3:*:*:*:*:*:*:* Versions 1.3.3 Vulnerable ·Rack Project
  • cpe:2.3:a:rack_project:rack:1.3.4:*:*:*:*:*:*:* Versions 1.3.4 Vulnerable ·Rack Project
  • cpe:2.3:a:rack_project:rack:1.3.5:*:*:*:*:*:*:* Versions 1.3.5 Vulnerable ·Rack Project
  • cpe:2.3:a:rack_project:rack:1.3.6:*:*:*:*:*:*:* Versions 1.3.6 Vulnerable ·Rack Project
  • cpe:2.3:a:rack_project:rack:1.3.7:*:*:*:*:*:*:* Versions 1.3.7 Vulnerable ·Rack Project
  • cpe:2.3:a:rack_project:rack:1.3.8:*:*:*:*:*:*:* Versions 1.3.8 Vulnerable ·Rack Project
  • cpe:2.3:a:rack_project:rack:1.3.9:*:*:*:*:*:*:* Versions 1.3.9 Vulnerable ·Rack Project
  • cpe:2.3:a:rack_project:rack:1.2.0:*:*:*:*:*:*:* Versions 1.2.0 Vulnerable ·Rack Project
  • cpe:2.3:a:rack_project:rack:1.2.1:*:*:*:*:*:*:* Versions 1.2.1 Vulnerable ·Rack Project
  • cpe:2.3:a:rack_project:rack:1.2.2:*:*:*:*:*:*:* Versions 1.2.2 Vulnerable ·Rack Project
  • cpe:2.3:a:rack_project:rack:1.2.3:*:*:*:*:*:*:* Versions 1.2.3 Vulnerable ·Rack Project
  • cpe:2.3:a:rack_project:rack:1.2.4:*:*:*:*:*:*:* Versions 1.2.4 Vulnerable ·Rack Project
  • cpe:2.3:a:rack_project:rack:1.2.6:*:*:*:*:*:*:* Versions 1.2.6 Vulnerable ·Rack Project
  • cpe:2.3:a:rack_project:rack:1.2.7:*:*:*:*:*:*:* Versions 1.2.7 Vulnerable ·Rack Project
  • cpe:2.3:a:rack_project:rack:1.1.0:*:*:*:*:*:*:* Versions 1.1.0 Vulnerable ·Rack Project
  • cpe:2.3:a:rack_project:rack:1.1.4:*:*:*:*:*:*:* Versions 1.1.4 Vulnerable ·Rack Project
  • cpe:2.3:a:rack_project:rack:1.1.5:*:*:*:*:*:*:* Versions 1.1.5 Vulnerable ·Rack Project
  • cpe:2.3:a:rack_project:rack:1.1.6:*:*:*:*:*:*:* Versions 1.1.6 Vulnerable ·Rack Project

Remediation

  • Fix · GHSA-xc85-32mf-xpv8 rack (RubyGems) Fixed in 1.5.2 Advisory →
  • Fix · GHSA-xc85-32mf-xpv8 rack (RubyGems) Fixed in 1.4.5 Advisory →
  • Fix · GHSA-xc85-32mf-xpv8 rack (RubyGems) Fixed in 1.3.10 Advisory →
  • Fix · GHSA-xc85-32mf-xpv8 rack (RubyGems) Fixed in 1.2.8 Advisory →
  • Fix · GHSA-xc85-32mf-xpv8 rack (RubyGems) Fixed in 1.1.6 Advisory →

Red Hat 2 advisories

  • RHSA-2013:0686 Released 2013-03-26 · Red Hat rating Moderate
    Subscription Asset Manager 1.2.1 update
    • Red Hat Subscription Asset Manager for RHEL 6 Server candlepin-0.7.24-1.el6_3, candlepin-devel-0.7.24-1.el6_3, candlepin-selinux-0.7.24-1.el6_3 +23
  • RHSA-2013:0638 Released 2013-03-12 · Red Hat rating Moderate
    Red Hat OpenShift Enterprise 1.1.2 update
    • Red Hat OpenShift Enterprise Infrastructure ruby193-rubygem-rack-1:1.4.1-4.el6, rubygem-rack-1:1.3.0-4.el6op
    • Red Hat OpenShift Enterprise Node jenkins-1.502-1.el6op, openshift-origin-cartridge-jenkins-1.4-1.0.3-1.el6op, ruby193-rubygem-rack-1:1.4.1-4.el6 +1

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise MRG 2AffectedNo fix yet
Red Hat OpenShift Enterprise InfrastructureFixed RHSA-2013:0638
Red Hat OpenShift Enterprise NodeFixed RHSA-2013:0638
Red Hat Subscription Asset Manager for RHEL 6 ServerFixed RHSA-2013:0686

Timeline

  1. 2026-10-02 Threatist record created from CVE-2013-0263
  2. 2026-10-03 Alias added: GHSA-xc85-32mf-xpv8

References

Advisory 5

Other 17

  • TI-2022-12397 A sequence injection vulnerability exists in Rack <2.0.9.1, <2.1.4.1 and <2.2.3.1 which… CVSS 3.1CRITICAL 10.0
  • TI-2022-12396 Uncontrolled resource consumption in https://github.com/rack/rack CVSS 3.1HIGH 7.5
  • TI-2020-06579 Path traversal in https://github.com/rack/rack CVSS 3.1HIGH 8.6
  • TI-2020-06602 Improper input validation in https://github.com/rack/rack CVSS 3.1HIGH 7.5
  • TI-2018-11812 Uncontrolled resource consumption in Rack CVSS 3.0HIGH 7.5
  • TI-2015-02854 lib/rack/utils.rb in Rack before 1.5.4 and 1.6.x before 1.6.2, as used with Ruby on Rails… CVSS 2.0MEDIUM 5.0
See all 12 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences