CVE-2015-6786

MEDIUM

Description

The CSPSourceList::matches function in WebKit/Source/core/frame/csp/CSPSourceList.cpp in the Content Security Policy (CSP) implementation in Google Chrome before 47.0.2526.73 accepts a blob:, data:, or filesystem: URL as a match for a * pattern, which allows remote attackers to bypass intended scheme restrictions in opportunistic circumstances by leveraging a policy that relies on this pattern.

References

http://googlechromereleases.blogspot.com/2015/12/stable-channel-update.html

http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00016.html

http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00017.html

http://www.debian.org/security/2015/dsa-3415

http://www.securityfocus.com/bid/78416

http://www.securitytracker.com/id/1034298

http://www.ubuntu.com/usn/USN-2825-1

https://code.google.com/p/chromium/issues/detail?id=534570

https://codereview.chromium.org/1361763005/

https://security.gentoo.org/glsa/201603-09

Details

Source: MITRE

Published: 2015-12-06

Updated: 2017-09-14

Type: CWE-264

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