漏洞信息
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Vulnerability Title
Grav before 2.0.9 Remote Code Execution via FlexDirectory
Vulnerability Description
Grav versions >= 1.7.0 and before 2.0.9 contain a remote code execution vulnerability. FlexDirectory::dynamicDataField() resolves blueprint data-*@: directives by calling call_user_func_array() on attacker-influenced input, validating only that the target is callable (is_callable()) without restricting dangerous functions such as exec, system, passthru, or shell_exec. Because FlexDirectory registers this handler for every Flex directory, it bypasses the validation added to Blueprint::dynamicData() in 2.0.7 (GHSA-fj2p-qj2f-74v5). Any authenticated user with create or update permission on any Flex-based directory (Flex Users, Flex Pages, Flex Objects, or custom Flex types) can execute arbitrary shell commands on the server.
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Vulnerability Type
使用外部可控制的输入来选择类或代码(不安全的反射)
Vulnerability Title
Grav 代码注入漏洞
Vulnerability Description
Grav Grav是Grav组织开源的一个基于文件系统的无数据库内容管理系统。 Grav 1.7.0版本至2.0.9之前版本存在代码注入漏洞,该漏洞源于FlexDirectory::dynamicDataField()在解析blueprint data-*@:指令时调用call_user_func_array(),仅验证目标可调用而未限制exec、system等危险函数,导致任何具有创建或更新权限的认证用户可在服务器上执行任意命令。
CVSS Information
N/A
Vulnerability Type
N/A