CVE-2013-0263

medium
Published 2013-02-07 · Modified 2024-12-05
CVSS v3
CVSS v2
5.1
VIR risk
5.1

Description

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.

Predictions

Exploit likelihood
20%
Patch ETA

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2013-0263

vendor Authored 2026-05-27

Vendor advisory: secalert@redhat.com — http://secunia.com/advisories/52134

vendor Authored 2026-05-27

Vendor advisory: secalert@redhat.com — http://secunia.com/advisories/52033

vendor Authored 2026-05-27

Vendor advisory: secalert@redhat.com — http://rack.github.com/

OS impact

OSVersionStatusFixed in
debian debianbookwormfixed1.4.1-2.1
debian debianbullseyefixed1.4.1-2.1
debian debianforkyfixed1.4.1-2.1
debian debiansidfixed1.4.1-2.1
debian debiantrixiefixed1.4.1-2.1

Package impact

EcosystemPackageVulnerableFixed
ruby RubyGemsrack<~> 1.1.6~> 1.1.6
ruby RubyGemsrack>=1.5.0,<1.5.21.5.2
ruby RubyGemsrack>=1.4.0,<1.4.51.4.5
ruby RubyGemsrack>=1.3.0,<1.3.101.3.10
ruby RubyGemsrack>=1.2.0,<1.2.81.2.8
ruby RubyGemsrack>=1.1.0,<1.1.61.1.6

Application impact

VendorProductVersionsFixed
rack_projectrack1.5.0
rack_projectrack1.5.1
rack_projectrack1.4.0
rack_projectrack1.4.1
rack_projectrack1.4.2
rack_projectrack1.4.3
rack_projectrack1.4.4
rack_projectrack1.3.0
rack_projectrack1.3.1
rack_projectrack1.3.2
rack_projectrack1.3.3
rack_projectrack1.3.4
rack_projectrack1.3.5
rack_projectrack1.3.6
rack_projectrack1.3.7
rack_projectrack1.3.8
rack_projectrack1.3.9
rack_projectrack1.2.0
rack_projectrack1.2.1
rack_projectrack1.2.2
rack_projectrack1.2.3
rack_projectrack1.2.4
rack_projectrack1.2.6
rack_projectrack1.2.7
rack_projectrack1.1.0
rack_projectrack1.1.4
rack_projectrack1.1.5
rack_projectrack1.1.6

References

Verify integrity in audit chain (admin only). AS-IS.