CVE-2015-1269

MEDIUM

Description

The DecodeHSTSPreloadRaw function in net/http/transport_security_state.cc in Google Chrome before 43.0.2357.130 does not properly canonicalize DNS hostnames before making comparisons to HSTS or HPKP preload entries, which allows remote attackers to bypass intended access restrictions via a string that (1) ends in a . (dot) character or (2) is not entirely lowercase.

References

http://googlechromereleases.blogspot.com/2015/06/chrome-stable-update.html

http://lists.opensuse.org/opensuse-updates/2015-06/msg00057.html

http://lists.opensuse.org/opensuse-updates/2015-11/msg00012.html

http://rhn.redhat.com/errata/RHSA-2015-1188.html

http://www.debian.org/security/2015/dsa-3315

http://www.securityfocus.com/bid/75336

http://www.securitytracker.com/id/1032731

http://www.ubuntu.com/usn/USN-2652-1

https://code.google.com/p/chromium/issues/detail?id=461481

https://codereview.chromium.org/1149753002

https://security.gentoo.org/glsa/201507-18

Details

Source: MITRE

Published: 2015-06-26

Updated: 2016-12-31

Type: CWE-254

Risk Information

CVSS v2.0

Base Score: 4.3

Vector: (AV:N/AC:M/Au:N/C:N/I:P/A:N)

Impact Score: 2.9

Exploitability Score: 8.6

Severity: MEDIUM