Debian Security Advisory DSA 1456-1 (fail2ban)

# OpenVAS Vulnerability Test
# $Id: deb_1456_1.nasl 6616 2017-07-07 12:10:49Z cfischer $
# Description: Auto-generated from advisory DSA 1456-1 (fail2ban)
#
# Authors:
# Thomas Reinke <[email protected]>
#
# Copyright:
# Copyright (c) 2008 E-Soft Inc. http://www.securityspace.com
# Text descriptions are largerly excerpted from the referenced
# advisory, and are Copyright (c) the respective author(s)
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2,
# as published by the Free Software Foundation
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
#

include("revisions-lib.inc");
tag_insight = "Daniel B. Cid discovered that fail2ban, a tool to block IP addresses
that cause login failures, is too liberal about parsing SSH log files,
allowing an attacker to block any IP address.

For the unstable distribution (sid), this problem has been fixed in
version 0.8.0-4.

For the stable distribution (etch), this problem has been fixed in
version 0.7.5-2etch1.

The old stable distribution (sarge) doesn't contain fail2ban.

We recommend that you upgrade your fail2ban package.";
tag_summary = "The remote host is missing an update to fail2ban
announced via advisory DSA 1456-1.";

tag_solution = "https://secure1.securityspace.com/smysecure/catid.html?in=DSA%201456-1";


if(description)
{
 script_id(60133);
 script_version("$Revision: 6616 $");
 script_tag(name:"last_modification", value:"$Date: 2017-07-07 14:10:49 +0200 (Fri, 07 Jul 2017) $");
 script_tag(name:"creation_date", value:"2008-01-31 16:11:48 +0100 (Thu, 31 Jan 2008)");
 script_cve_id("CVE-2007-4321");
 script_tag(name:"cvss_base", value:"6.8");
 script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:P/I:P/A:P");
 script_name("Debian Security Advisory DSA 1456-1 (fail2ban)");



 script_category(ACT_GATHER_INFO);

 script_copyright("Copyright (c) 2008 E-Soft Inc. http://www.securityspace.com");
 script_family("Debian Local Security Checks");
 script_dependencies("gather-package-list.nasl");
 script_mandatory_keys("ssh/login/debian_linux", "ssh/login/packages");
 script_tag(name : "solution" , value : tag_solution);
 script_tag(name : "insight" , value : tag_insight);
 script_tag(name : "summary" , value : tag_summary);
 script_tag(name:"qod_type", value:"package");
 script_tag(name:"solution_type", value:"VendorFix");
 exit(0);
}

#
# The script code starts here
#

include("pkg-lib-deb.inc");

res = "";
report = "";
if ((res = isdpkgvuln(pkg:"fail2ban", ver:"0.7.5-2etch1", rls:"DEB4.0")) != NULL) {
    report += res;
}

if (report != "") {
    security_message(data:report);
} else if (__pkg_match) {
    exit(99); # Not vulnerable.
}