Advisory

Han Sahin, November 2014

Path traversal vulnerability in EMC M&R (Watch4net) MIB Browser

Abstract

A path traversal vulnerability was found in EMC M&R (Watch4net) MIB Browser. This vulnerability allows an attacker to access sensitive files containing configuration data, passwords, database records, log data, source code, and program scripts and binaries.

Affected products

EMC reports that the following products are affected by this vulnerability:

- EMC M&R (Watch4Net) versions prior 6.5u1
- EMC ViPR SRM versions prior to 3.6.1

See also

- CVE-2015-0516
- ESA-2015-004: EMC M&R (Watch4Net) Multiple Vulnerabilities
- ESA-2015-004: EMC M&R (Watch4Net) Multiple Vulnerabilities (login required)

Fix

EMC released the following updated versions that resolve this vulnerability:

- EMC M&R (Watch4Net) 6.5u1
- EMC ViPR SRM 3.6.1

Registered customers can download upgraded software from support.emc.com at https://support.emc.com/downloads/34247_ViPR-SRM.

Introduction

EMC M&R (formerly known as Watch4net) enables cross-domain performance monitoring of infrastructure and data center components in real-time - from a single, customizable dashboard.

A path traversal vulnerability was found in M&R (Watch4net) MIB Browser. Path traversal vulnerabilities arise when user-controllable data is used insecurely within a file system operation. Typically, a user-supplied filename is appended to a directory prefix in order to read or write the contents of a file.

Details

This vulnerability can be trigger via de name URL parameter of the /mib-browser/mibs/download page. An authenticated attacker can supply path traversal sequences to break out of the intended download directory and read files elsewhere on the file system. This allows the attacker to access sensitive files containing configuration data, passwords, database records, log data, source code, and program scripts and binaries.

The following URLs can be used to demonstrate this issue:
http://<target>:58080/mib-browser/mibs/download?name=..\..\..\..\Web-Servers\Tomcat\Default\conf\server.xml
http://<target>:58080/mib-browser/mibs/download?name=..\..\..\..\..\..\..\..\..\..\..\..\..\..\..\..\windows\System32\drivers\etc\hosts

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