Improper input validation in PHP
CVE-2017-7189
main/streams/xp_socket.c in PHP 7.x before 2017-03-07 misparses fsockopen calls, such as by interpreting fsockopen('127.0.0.1:80', 443) as if the address/port were 127.0.0.1:80:443, which is later truncated to 127.0.0.1:80. This behavior has a security risk if the explicitly provided port number (i.e., 443 in this example) is hardcoded into an application as a security policy, but the hostname argument (i.e., 127.0.0.1:80 in this example) is obtained from untrusted input.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.024 (83.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 84th percentile — 83.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.025 · newest: 0.024 · change: -0.001
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/php/php-src/commit/bab0b99f376dac9170ac81382a5ed526938d595a (Patch, Third Party Advisory)
- bugs.php.net/bug.php (Permissions Required, Vendor Advisory)
Frequently asked questions
- What is CVE-2017-7189?
- CVE-2017-7189 is a high-severity vulnerability in PHP, classified under Improper Input Validation. CVSS score: 7.5/10. Published 2019-07-10.
- How severe is CVE-2017-7189?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2017-7189 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.