Description

PHP through 7.1.11 enables potential SSRF in applications that accept an fsockopen or pfsockopen hostname argument with an expectation that the port number is constrained. Because a :port syntax is recognized, fsockopen will use the port number that is specified in the hostname argument, instead of the port number in the second argument of the function.

References

http://www.securityfocus.com/bid/97178

http://www.securitytracker.com/id/1038158

https://bugs.php.net/bug.php?id=74216

https://bugs.php.net/bug.php?id=75505

https://github.com/php/php-src/commit/bab0b99f376dac9170ac81382a5ed526938d595a

https://security.netapp.com/advisory/ntap-20180112-0001/

https://www.sec-consult.com/fxdata/seccons/prod/temedia/advisories_txt/20170403-0_PHP_Misbehavior_of_fsockopen_function_v10.txt

Details

Risk Information

CVSS v2

CVSS v3