CVE-2017-7272

HIGH severity · CVSS 7.4 · Server-side request forgery (SSRF)

7.4CVSS HIGH

Summary

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.

Impact & exploitability

Attack vectorNetwork

Attack complexityLow

Privileges requiredNone

User interactionRequired

Confidentiality impactNone

Integrity impactHigh

Availability impactNone

Exploit probability (EPSS)1%

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:N

Affected products we track (1)

PHP

Recommendation

Apply the vendor fix promptly. Open any affected product above for its exact safe version.

Official patch: https://github.com/php/php-src/commit/bab0b99f376dac9170ac81382a5ed526938d595a ↗

Additional information

NVD record
https://github.com/php/php-src/commit/bab0b99f376dac9170ac81382a5ed526938d595aPatch
https://bugs.php.net/bug.php?id=74216Advisory
http://www.securityfocus.com/bid/97178Advisory
http://www.securitytracker.com/id/1038158
https://bugs.php.net/bug.php?id=75505
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
http://www.securityfocus.com/bid/97178Advisory