CVE-2019-16782

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Summary

CVECVE-2019-16782
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2019-12-18 20:15:00 UTC
Updated2023-11-07 03:05:00 UTC
DescriptionThere's a possible information leak / session hijack vulnerability in Rack (RubyGem rack). This vulnerability is patched in versions 1.6.12 and 2.0.8. Attackers may be able to find and hijack sessions by using timing attacks targeting the session id. Session ids are usually stored and indexed in a database that uses some kind of scheme for speeding up lookups of that session id. By carefully measuring the amount of time it takes to look up a session, an attacker may be able to find a valid session id and hijack the session. The session id itself may be generated randomly, but the way the session is indexed by the backing store does not use a secure comparison.

Risk And Classification

Problem Types: CWE-203

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Fedoraproject Fedora 31 All All All
Operating System Opensuse Leap 15.1 All All All
Application Rack Project Rack All All All All
Application Rack Project Rack 1.6.12 All All All
Application Rack Project Rack 2.0.8 All All All
Application Rack Project Rack 1.6.12 All All All
Application Rack Project Rack 2.0.8 All All All

References

ReferenceSourceLinkTags
oss-security - Re: [CVE-2019-16782] Possible Information Leak / Session Hijack Vulnerability in Rack MLIST www.openwall.com
oss-security - [CVE-2019-16782] Possible Information Leak / Session Hijack Vulnerability in Rack MLIST www.openwall.com Mailing List, Third Party Advisory
oss-security - Re: [CVE-2019-16782] Possible Information Leak / Session Hijack Vulnerability in Rack MLIST www.openwall.com
[security-announce] openSUSE-SU-2020:0214-1: moderate: Security update f SUSE lists.opensuse.org
oss-security - Re: [CVE-2019-16782] Possible Information Leak / Session Hijack Vulnerability in Rack MLIST www.openwall.com Mailing List, Third Party Advisory
Merge branch 'advisory-fix-1' · rack/rack@7fecaee · GitHub CONFIRM github.com Patch, Third Party Advisory
[SECURITY] Fedora 31 Update: rubygem-rack-2.0.8-1.fc31 - package-announce - Fedora Mailing-Lists lists.fedoraproject.org
oss-security - Re: [CVE-2019-16782] Possible Information Leak / Session Hijack Vulnerability in Rack MLIST www.openwall.com Mailing List, Third Party Advisory
[SECURITY] Fedora 31 Update: rubygem-rack-2.0.8-1.fc31 - package-announce - Fedora Mailing-Lists FEDORA lists.fedoraproject.org
Possible Information Leak / Session Hijack Vulnerability · Advisory · rack/rack · GitHub CONFIRM github.com Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 238742 Red Hat Update for Satellite 6.8 release (RHSA-2020:4366)
  • 239228 Red Hat Update for Satellite 6.9 (RHSA-2021:1313)
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