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Red Hat Bugzilla – Attachment 157447 Details for
Bug 244942
Security vulnerablity - log injection
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[patch]
Fix DOS vulnerability and AllowUsers issue in sshd.conf
fail2ban-0.8-sshd-regex-fix.patch (text/plain), 779 bytes, created by
Jonathan Underwood
on 2007-06-20 11:00:39 UTC
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Description:
Fix DOS vulnerability and AllowUsers issue in sshd.conf
Filename:
MIME Type:
Creator:
Jonathan Underwood
Created:
2007-06-20 11:00:39 UTC
Size:
779 bytes
patch
obsolete
>--- sshd.conf.upstream 2007-06-20 11:56:18.000000000 +0100 >+++ sshd.conf 2007-06-20 11:53:36.000000000 +0100 >@@ -14,10 +14,11 @@ > # (?:::f{4,6}:)?(?P<host>\S+) > # Values: TEXT > # >-failregex = Authentication failure for .* from <HOST> >- Failed [-/\w]+ for .* from <HOST> >- ROOT LOGIN REFUSED .* FROM <HOST> >- [iI](?:llegal|nvalid) user .* from <HOST> >+failregex = Authentication failure for .* from <HOST>$ >+ Failed [-/\w]+ for .* from <HOST>$ >+ ROOT LOGIN REFUSED .* FROM <HOST>$ >+ [iI](?:llegal|nvalid) user .* from <HOST>$ >+ User .* from <HOST>$ not allowed because not listed in AllowUsers > > # Option: ignoreregex > # Notes.: regex to ignore. If this regex matches, the line is ignored.
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