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OpenSSH IP address restriction bypass
Secunia Advisory: SA8974
Release Date: 2003-06-09
Last Update: 2003-10-29
Popularity: 15,269 views

Critical:
Not critical
Impact: Security Bypass
Where: From remote
Solution Status: Vendor Patch

Software:OpenSSH 3.x

Secunia CVSS-2 Score: Available in Secunia business solutions

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Advisory Content (Page 2 of 3)[ 1 ] [ 2 ] [ 3 ]

Solution:
Do never rely on IP filtering at application level. Always apply IP restrictions using a perimeter firewall, router, iptables or similar.

OpenSSH version 3.6.1 and earlier support the "VerifyReverseMapping" option, which provides an additional verification of the hostname / IP address.

Provided and/or discovered by:
Mike Harding

Other References:
http://www.kb.cert.org/vuls/id/978316

Change Page:
[ 1 ] [ 2 ] [ 3 ]



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