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Vulnerability Assessment Details

SheerDNS directory traversal

Vulnerability Assessment Summary
Acertains if the remote DNS server handles malformed names

Detailed Explanation for this Vulnerability Assessment

The remote server seems to be running SheerDNS 1.0.0 or older.

This version is vulnerable to several flaws permiting :
- A remote attacker to read certain files with predefined names
(A, PTR, CNAME, ...)

- A local attacker to read the first line of arbitrary files with the
rights of the DNS server (typically root)

- A local attacker to execute arbitrary code through a buffer overflow

Solution : Upgrade to SheerDNS 1.0.1 or disable this service
Network Security Threat Level: Low (remotely) / High (locally)

Networks Security ID: 7335, 7336

Vulnerability Assessment Copyright: This script is Copyright (C) 2003 Renaud Deraison

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