CVE-2018-15132 — An issue was discovered in ext/standard/link_win32
An issue was discovered in ext/standard/link_win32.c in PHP before 5.6.37, 7.0.x before 7.0.31, 7.1.x before 7.1.20, and 7.2.x before 7.2.8. The linkinfo function on Windows doesn't implement the open_basedir check. This could be abused to find files on paths outside of the
Published
2018-08-07T15:00:00.000Z
Last modified
2024-08-05T09:46:25.401Z
01What is this vulnerability?
An issue was discovered in ext/standard/link_win32.c in PHP before 5.6.37, 7.0.x before 7.0.31, 7.1.x before 7.1.20, and 7.2.x before 7.2.8. The linkinfo function on Windows doesn't implement the open_basedir check. This could be abused to find files on paths outside of the allowed directories.
02Affected products
| Vendor | Product | Versions |
|---|
| n | a / n/a | n/a |
03Active exploitation status
Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.
04Recommended remediation
- Patch to a fixed version listed in the vendor advisory (see references below).
- Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
- Hunt historical logs for exploitation indicators — see Detection signatures below.
05Technical details
For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.
06Detection signatures
Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.
07Related CVEs
No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.
08Timeline
- Published: 2018-08-07T15:00:00.000Z
- Last modified: 2024-08-05T09:46:25.401Z
09References
- php.net — http://php.net/ChangeLog-5.php
- security.netapp.com — https://security.netapp.com/advisory/ntap-20181107-0003/
- www.tenable.com — https://www.tenable.com/security/tns-2018-12
- php.net — http://php.net/ChangeLog-7.php
- github.com — https://github.com/php/php-src/commit/f151e048ed27f6f4eef729f3310d053ab5da71d4
- bugs.php.net — https://bugs.php.net/bug.php?id=76459
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