Vulnerability Information
Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.
Vulnerability Title
N/A
Vulnerability Description
PHP 5 before 5.2.3 does not enforce the open_basedir or safe_mode restriction in certain cases, which allows context-dependent attackers to determine the existence of arbitrary files by checking if the readfile function returns a string. NOTE: this issue might also involve the realpath function.
CVSS Information
N/A
Vulnerability Type
N/A
Vulnerability Title
PHP realpath()函数绕过安全限制漏洞
Vulnerability Description
PHP是一种流行的WEB服务器端编程语言。 PHP的realpath()函数实现上存在漏洞，远程攻击者可能利用此漏洞绕过某些安全限制。 PHP的file_exists()函数不允许检查是否存在open_basedir指定目录之外的文件，但readfile()没有这个限制，允许检查文件系统的任意位置是否存在某一文件。如果realpath($filename)返回了字符串(也就是非false)，就表示文件存在，这就导致绕过了open_basedir限制。
CVSS Information
N/A
Vulnerability Type
N/A