出品|先知社区(ID:l3yx）
以下内容，来自先知社区的l3yx作者原创，由于传播，利用此文所提供的信息而造成的任何直接或间接的后果和损失，均由使用者本人负责，长白山攻防实验室以及文章作者不承担任何责任。
CVE-2022-40309
Apache Archiva是一个存储库管理软件，2.2.9以下版本在删除或者下载Artifact时，可以在目录或者文件名中注入目录穿越符，导致任意目录删除/任意文件读取漏洞。
Apache Archiva < 2.2.9
-
https://archive.apache.org/dist/archiva/2.2.8/binaries/apache-archiva-2.2.8-bin.zip
-
https://codeload.github.com/apache/archiva/zip/refs/tags/archiva-2.2.8
wrapper.java.additional.9=-agentlib:jdwp=transport=dt_socket,server=y,suspend=n,address=5005
首次运行需要添加Admin用户，注意需要勾选Validated复选框：
http://127.0.0.1:8080/#open-admin-create-box
前置条件是需要用户拥有archiva-delete-artifact操作权限，使用首次添加的系统管理员账号或者角色为Repository Manager - internal的账号都可，其次需要存储库中有Artifact
保存之后文件会储存在repositories/interna-l/com/test/test/1.0/test1.0.jar在/#browse页面点进group然后删除project时抓包，如果此页面为空的话可以重启一下Archiva
可以抓到如下DELETE请求
DELETE /restServices/archivaServices/repositoriesService/project/internal/com.test/test
在projectid后面添加POC%2f..%2f..%2f..%2-f..%2f..%2fdata，这将删除Archiva根目录下的data目录
DELETE /restServices/archivaServices/repositoriesService/project/internal/com.test/test%2f..%2f..%2f..%2f..%2f..%2fdata
入口在 org.apache.archiva.rest.api.services.RepositoriesService#deleteProject
("project/{repositoryId}/{groupId}/{projectId}")({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML, MediaType.TEXT_PLAIN })(noPermission = true)Boolean deleteProject( ("groupId") String groupId, ("projectId") String projectId,("repositoryId") String repositoryId )throws ArchivaRestServiceException;org.apache.archiva.rest.services.DefaultRepositoriesService#deleteProject
public Boolean deleteProject( String groupId, String projectId, String repositoryId )throws ArchivaRestServiceException{...if ( !isAuthorizedToDeleteArtifacts( repositoryId ) ){throw new ArchivaRestServiceException( "not authorized to delete artifacts", 403, null );}...try{ManagedRepositoryContent repository = repositoryFactory.getManagedRepositoryContent( repositoryId );repository.deleteProject( groupId, projectId );}...}
isAuthorizedToDeleteArtifacts 限制登录用户需要有archiva-delete-artifact权限
在repository.deleteProject( groupId, projectId )中直接拼接了目录名进行删除
org.apache.archiva.repository.content.maven2.ManagedDefaultRepositoryContent#deleteProject
-
https://github.com/apache/archiva/commit/930460424c715f52a7cb5eef5b084a7a8ef31fb5#diff
-
bde5305e671d2bdf9f05df227a6fa706f87b911c28799575537f806a063a9134R95
CVE-2022-40308
Apache Archiva < 2.2.9
同上
由web.xml
<servlet-mapping><servlet-name>RepositoryServlet</servlet-name><url-pattern>/repository/*</url-pattern></servlet-mapping>
入口在RepositoryServlet，而且POC/repositor-y/internal/..///../data/databases/users/log/log1.dat中的..///..必须是两个及以上数量的/
如果URL为/repository/internal/../../data/data-bases/users/log/log1.dat,则Jetty会认为请求的是/data/databases/users/log/log1.dat而非/repo-sitory/*
org.apache.archiva.webdav.RepositoryServlet#service
protected void service( HttpServletRequest request, HttpServletResponse response )throws ServletException, IOException{WebdavRequest webdavRequest = new WebdavRequestImpl( request, getLocatorFactory() );// DeltaV requires 'Cache-Control' header for all methods except 'VERSION-CONTROL' and 'REPORT'.int methodCode = DavMethods.getMethodCode( request.getMethod() );boolean noCache = DavMethods.isDeltaVMethod( webdavRequest ) && !( DavMethods.DAV_VERSION_CONTROL == methodCode|| DavMethods.DAV_REPORT == methodCode );WebdavResponse webdavResponse = new WebdavResponseImpl( response, noCache );DavResource resource = null;try{// make sure there is a authenticated userif ( !getDavSessionProvider().attachSession( webdavRequest ) ){return;}// check matching if=header for lock-token relevant operationsresource =getResourceFactory().createResource( webdavRequest.getRequestLocator(), webdavRequest, webdavResponse );if ( !isPreconditionValid( webdavRequest, resource ) ){webdavResponse.sendError( DavServletResponse.SC_PRECONDITION_FAILED );return;}if ( !execute( webdavRequest, webdavResponse, methodCode, resource ) ){super.service( request, response );}}...}
跟入getResourceFactory().createResource
org.apache.archiva.webdav.ArchivaDavResourceFactory#createResource(org.apache.jackrabbit.webdav.DavResourceLocator, org.apache.jackrabbit.webdav.DavServletRequest, org.apache.jackrabbit.webdav.DavServletResponse)
鉴权在processRepository(...)中，过了鉴权后发现其实问题也是由于未验证文件名，这里将包含目录穿越的路径直接拼接到new File()参数中
这是当时给官方提交漏洞后，官方回复的修复方式，和目前最新版的代码好像不太一样
https://github.com/apache/archiva/commit/4a2d43be63634331668d71590034963e96a8886a#diff7828cc4ef12a5f453debc98ef5c3eaf85c6851b271ee298a75b4bd6ea001846cR605
-
https://lists.apache.org/thread/1odl4p85r96n27k577jk6ftrp19xfc27
-
https://lists.apache.org/thread/x01pnn0jjsw512cscxsbxzrjmz64n4cc
▇ 扫码关注我们 ▇
长白山攻防实验室
学习最新技术知识
原文始发于微信公众号（长白山攻防实验室）：Apache Archiva任意目录删除(CVE-2022-40309) 和任意文件读取(CVE-2022-40308)
- 左青龙
- 微信扫一扫
-
- 右白虎
- 微信扫一扫
-
评论