In PHP before 5.6.28 and 7.x before 7.0.13, incorrect handling of various URI components in the URL parser could be used by attackers to bypass hostname-specific URL checks, as demonstrated by evil.example.com:80#@good.example.com/ and evil.example.com:[email protected]/ inputs to the parse_url function (implemented in the php_url_parse_ex function in ext/standard/url.c).
http://git.php.net/?p=php-src.git;a=commit;h=b061fa909de77085d3822a89ab901b934d0362c4
http://openwall.com/lists/oss-security/2017/07/10/6
http://php.net/ChangeLog-5.php
http://php.net/ChangeLog-7.php
http://www.securityfocus.com/bid/99552
Source: MITRE
Published: 2017-07-10
Updated: 2018-01-14
Type: CWE-20
Base Score: 5
Vector: AV:N/AC:L/Au:N/C:N/I:P/A:N
Impact Score: 2.9
Exploitability Score: 10
Severity: MEDIUM
Base Score: 7.5
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Impact Score: 3.6
Exploitability Score: 3.9
Severity: HIGH