##############################################################################
#
#  Red Hat local check
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#  Revision:
#  $Revision: 1.8 $
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#
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#  security policies, and actively blocks network attacks. StillSecure
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# LOCAL_CHECK=YES
##############################################################################

# The plugin text is copyright Red Hat, Inc.

if ( ! defined_func("bn_random") ) exit(0);
if(description)
{
 script_id(400093);
 script_version ("$Revision: 1.8 $");
 script_cve_id("CVE-2002-1336","CVE-2002-1511");

 name["english"] = "RH71 : Updated VNC packages fix replay and cookie vulnerabilities";
 script_name(english:name["english"]);

 desc["english"] = '
   Details


Updated VNC packages are available, fixing a challenge replay and a weak
cookie vulnerability.


[Updated 10 July 2003]
Added packages for Red Hat Linux on IBM iSeries and pSeries systems.

VNC is a tool for providing a remote graphical user interface.  Two
vulnerabilities have been found in versions of VNC shipped by Red Hat.


The VNC server acts as an X server, but the script for starting it
generates an MIT X cookie (which is used for X authentication) without
using a sufficiently strong random number generator.  This could allow an
attacker to more easily guess the authentication cookie.


Description truncated, please see reference URL below for more information.

Reference: http://rhn.redhat.com//errata/RHSA-2003-041.html

 Packages affected:
   Refer to vendor website for up to date details on packages affected.

 Solution: 
   Before applying this update, make sure all previously released errata
relevant to your system have been applied.
To update all RPMs for your particular architecture, run:
rpm -Fvh [filenames]
where [filenames] is a list of the RPMs you wish to upgrade.  Only those
RPMs which are currently installed will be updated.  Those RPMs which are
not installed but included in the list will not be updated.  Note that you
can also use wildcards (*.rpm) if your current directory *only* contains the
desired RPMs.
Please note that this update is also available via Red Hat Network.  Many
people find this an easier way to apply updates.  To use Red Hat Network,
launch the Red Hat Update Agent with the following command:
up2date
This will start an interactive process that will result in the appropriate
RPMs being upgraded on your system.

 Risk factor : High';

 script_description(english:desc["english"]);

 summary["english"] = "RH71 : Updated VNC packages fix replay and cookie vulnerabilities";
 script_summary(english:summary["english"]);

 script_category(ACT_GATHER_INFO);

 script_copyright(english:"Copyright (C) 2005-2006 StillSecure");
 family["english"] = "Red Hat Local Security Checks";
 script_family(english:family["english"]);

 script_dependencies("ssh_get_info.nasl");

 script_require_keys("Host/RedHat/rpm-list");
 exit(0);
}

include("rpm.inc");


if ( rpm_check(reference:"vnc-3.3.3r2-18.6", release:"RH71") ) {
	security_hole(0);
	exit(0);
}
    
if ( rpm_check(reference:"vnc-doc-3.3.3r2-18.6", release:"RH71") ) {
	security_hole(0);
	exit(0);
}
    
if ( rpm_check(reference:"vnc-server-3.3.3r2-18.6", release:"RH71") ) {
	security_hole(0);
	exit(0);
}
    
if ( rpm_check(reference:"vnc-3.3.3r2-18.6.0p", release:"RH71") ) {
	security_hole(0);
	exit(0);
}
    
if ( rpm_check(reference:"vnc-doc-3.3.3r2-18.6.0p", release:"RH71") ) {
	security_hole(0);
	exit(0);
}
    
if ( rpm_check(reference:"vnc-server-3.3.3r2-18.6.0p", release:"RH71") ) {
	security_hole(0);
	exit(0);
}
    
if ( rpm_check(reference:"vnc-3.3.3r2-28.2", release:"RH71") ) {
	security_hole(0);
	exit(0);
}
    
if ( rpm_check(reference:"vnc-doc-3.3.3r2-28.2", release:"RH71") ) {
	security_hole(0);
	exit(0);
}
    
if ( rpm_check(reference:"vnc-server-3.3.3r2-28.2", release:"RH71") ) {
	security_hole(0);
	exit(0);
}
    
if ( rpm_check(reference:"vnc-3.3.3r2-39.2", release:"RH71") ) {
	security_hole(0);
	exit(0);
}
    
if ( rpm_check(reference:"vnc-doc-3.3.3r2-39.2", release:"RH71") ) {
	security_hole(0);
	exit(0);
}
    
if ( rpm_check(reference:"vnc-server-3.3.3r2-39.2", release:"RH71") ) {
	security_hole(0);
	exit(0);
}
    



if ( rpm_exists(rpm:"vnc-", release:"RH71") ) {
	set_kb_item(name:"CVE-2002-1336", value:TRUE);
	set_kb_item(name:"CVE-2002-1511", value:TRUE);
	exit(0);
}
	set_kb_item(name:"RHSA-2003-041", value:TRUE);