CVE-2017-7468

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Summary

CVECVE-2017-7468
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2018-07-16 13:29:00 UTC
Updated2019-10-09 23:29:00 UTC
DescriptionIn curl and libcurl 7.52.0 to and including 7.53.1, libcurl would attempt to resume a TLS session even if the client certificate had changed. That is unacceptable since a server by specification is allowed to skip the client certificate check on resume, and may instead use the old identity which was established by the previous certificate (or no certificate). libcurl supports by default the use of TLS session id/ticket to resume previous TLS sessions to speed up subsequent TLS handshakes. They are used when for any reason an existing TLS connection couldn't be kept alive to make the next handshake faster. This flaw is a regression and identical to CVE-2016-5419 reported on August 3rd 2016, but affecting a different version range.

Risk And Classification

Problem Types: CWE-295

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Haxx Libcurl All All All All

References

ReferenceSourceLinkTags
curl - TLS session resumption client cert bypass CONFIRM curl.haxx.se Vendor Advisory
cURL: Multiple vulnerabilities (GLSA 201709-14) — Gentoo Security GENTOO security.gentoo.org Third Party Advisory
cURL/libcurl TLS Session Resumption Client Certificate Bug Lets Remote Users Bypass Security Restrictions on the Target System - SecurityTracker SECTRACK www.securitytracker.com Third Party Advisory, VDB Entry
1443381 – (CVE-2017-7468) CVE-2017-7468 curl: TLS session resumption client cert bypass CONFIRM bugzilla.redhat.com Issue Tracking, Third Party Advisory
cURL/libcURL CVE-2017-7468 Remote Security Bypass Vulnerability BID www.securityfocus.com Third Party Advisory, VDB Entry
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 500118 Alpine Linux Security Update for curl
  • 503773 Alpine Linux Security Update for curl
  • 710401 Gentoo Linux cURL Multiple Vulnerabilities (GLSA 201709-14)
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