CVE-2006-4023

php: Improper validation of strings in ip2long function (remote attackers able to obtain network information and facilitate other attacks)

Published Aug 9, 2006 CVSS 2.0 · 5.0 Medium EPSS 5.7% KEV · Not listed
Description
The ip2long function in PHP 5.1.4 and earlier may incorrectly validate an arbitrary string and return a valid network IP address, which allows remote attackers to obtain network information and facilitate other attacks, as demonstrated using SQL injection in the X-FORWARDED-FOR Header in index.php in MiniBB 2.0. NOTE: it could be argued that the ip2long behavior represents a risk for security-relevant issues in a way that is similar to strcpy's role in buffer overflows, in which case this would be a class of implementation bugs that would require separate CVE items for each PHP application that uses ip2long in a security-relevant manner.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2006-4016 The ip2long function in PHP 5.1.4 and earlier may incorrectly validate an arbitrary string and return a valid network IP address, which allows remote attackers to obtain network information and facilitate other attacks, as demonstrated using SQL injection in the X-FORWARDED-FOR Header in index.php in MiniBB 2.0. NOTE: it could be argued that the ip2long behavior represents a risk for security-relevant issues in a way that is similar to strcpy's role in buffer overflows, in which case this would be a class of implementation bugs that would require separate CVE items for each PHP application that uses ip2long in a security-relevant manner.
History
Type Values Removed Values Added
Metrics epss

{'score': 0.00299}

epss

{'score': 0.00252}

Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Aug 7, 2024, 6:57 PM
Reserved
Aug 8, 2006, 12:00 AM
Status
Modified
Published
Aug 9, 2006, 12:04 AM
Modified
Jun 16, 2026, 10:28 PM
Severity
Low
Public date
Jul 29, 2006, 12:00 AM