CVE-2006-4023
What it is
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.
At a glance
- Exploitability
- Can be exploited over the network without logging in. Limited direct impact.
- Exploit odds
- 5.7% chance of exploitation in the next 30 days (EPSS).
- Fix
- No patch or advisory is linked yet. Look at mitigations or restrict exposure.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 5.7% in the next 30 days (EPSS).
- Severity: 5.0 MEDIUM (CVSS).
- Fix: none linked yet, which raises it.
Details
- Published
- Last modified
- Exploit probability
- 5.7% · EPSS, next 30 days
- Record status
- Modified
Affected
- PHP 4.3.3
- PHP 5.0.2
- PHP 5.1.4
Attack profile CVSS 2.0 · 5.0
- Attack vector
- Network
- Complexity
- Low
- Authentication
- None
- Confidentiality
- Partial
- Integrity
- None
- Availability
- None
Raw vector
AV:N/AC:L/Au:N/C:P/I:N/A:N
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2006-4023.md and follow it. Check whether this project is affected by CVE-2006-4023. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
References
- http://retrogod.altervista.org/php_ip2long.htm
- http://securitytracker.com/id?1016609
- http://www.securityfocus.com/archive/1/441529/100/100/threaded
- http://www.securityfocus.com/archive/1/441708/100/100/threaded
- http://retrogod.altervista.org/php_ip2long.htm
- http://securitytracker.com/id?1016609
- http://www.securityfocus.com/archive/1/441529/100/100/threaded
- http://www.securityfocus.com/archive/1/441708/100/100/threaded