S-242: Vulnerability in Cisco IOS with OSPF, MPLS VPN, and Supervisor 32, Supervisor


 
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Special Forums Cybersecurity Security Advisories (RSS) S-242: Vulnerability in Cisco IOS with OSPF, MPLS VPN, and Supervisor 32, Supervisor
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Old 03-27-2008
S-242: Vulnerability in Cisco IOS with OSPF, MPLS VPN, and Supervisor 32, Supervisor

Cetrain Cisco Catalyst 6500 Series and Cisco 7600 Router devices that run branches of Cisco IOS based on 12.2 can be vulnerable to a denial of service vulnerability that can prevent any traffic from entering an affected interface. The risk is LOW. Exploitation of this vulnerability may result in a blocked interface input queue, memory leak, and/or restart of the device. Repeated exploitation of this vulnerability may result in an extended denial of service.


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Info::Layer3::C6500(3pm)				User Contributed Perl Documentation				  Info::Layer3::C6500(3pm)

NAME
SNMP::Info::Layer3::C6500 - SNMP Interface to Cisco Catalyst 6500 Layer 2/3 Switches running IOS and/or CatOS AUTHOR
Max Baker SYNOPSIS
# Let SNMP::Info determine the correct subclass for you. my $c6500 = new SNMP::Info( AutoSpecify => 1, Debug => 1, # These arguments are passed directly to SNMP::Session DestHost => 'myswitch', Community => 'public', Version => 2 ) or die "Can't connect to DestHost. "; my $class = $c6500->class(); print "SNMP::Info determined this device to fall under subclass : $class "; DESCRIPTION
Abstraction subclass for Cisco Catalyst 6500 Layer 2/3 Switches. These devices run IOS but have some of the same characteristics as the Catalyst WS-C family(5xxx). For example, forwarding tables are held in VLANs, and extended interface information is gleaned from CISCO-SWITCH-MIB. For speed or debugging purposes you can call the subclass directly, but not after determining a more specific class using the method above. my $c6500 = new SNMP::Info::Layer3::C6500(...); Inherited Classes SNMP::Info::CiscoVTP SNMP::Info::CiscoStack SNMP::Info::CDP SNMP::Info::CiscoStats SNMP::Info::CiscoImage SNMP::Info::CiscoPortSecurity SNMP::Info::CiscoConfig SNMP::Info::CiscoPower SNMP::Info::Layer3 SNMP::Info::CiscoStpExtensions Required MIBs Inherited Classes' MIBs See "Required MIBs" in SNMP::Info::CiscoVTP for its own MIB requirements. See "Required MIBs" in SNMP::Info::CiscoStack for its own MIB requirements. See "Required MIBs" in SNMP::Info::CDP for its own MIB requirements. See "Required MIBs" in SNMP::Info::CiscoStats for its own MIB requirements. See "Required MIBs" in SNMP::Info::CiscoImage for its own MIB requirements. See "Required MIBs" in SNMP::Info::CiscoPortSecurity for its own MIB requirements. See "Required MIBs" in SNMP::Info::CiscoConfig for its own MIB requirements. See "Required MIBs" in SNMP::Info::CiscoPower for its own MIB requirements. See "Required MIBs" in SNMP::Info::Layer3 for its own MIB requirements. See "Required MIBs" in SNMP::Info::CiscoStpExtensions for its own MIB requirements. GLOBALS
These are methods that return scalar value from SNMP $c6500->vendor() Returns 'cisco' $c6500->cisco_comm_indexing() Returns 1. Use vlan indexing. Global Methods imported from SNMP::Info::CiscoVTP See documentation in "GLOBALS" in SNMP::Info::CiscoVTP for details. Global Methods imported from SNMP::Info::CiscoStack See documentation in "GLOBALS" in SNMP::Info::CiscoStack for details. Globals imported from SNMP::Info::CDP See documentation in "GLOBALS" in SNMP::Info::CDP for details. Globals imported from SNMP::Info::CiscoStats See documentation in "GLOBALS" in SNMP::Info::CiscoStats for details. Globals imported from SNMP::Info::CiscoImage See documentation in "GLOBALS" in SNMP::Info::CiscoImage for details. Globals imported from SNMP::Info::CiscoPortSecurity See documentation in "GLOBALS" in SNMP::Info::CiscoPortSecurity for details. Globals imported from SNMP::Info::CiscoConfig See documentation in "GLOBALS" in SNMP::Info::CiscoConfig for details. Globals imported from SNMP::Info::CiscoPower See documentation in "GLOBALS" in SNMP::Info::CiscoPower for details. Globals imported from SNMP::Info::Layer3 See documentation in "GLOBALS" in SNMP::Info::Layer3 for details. Globals imported from SNMP::Info::CiscoStpExtensions See documentation in "GLOBALS" in SNMP::Info::CiscoStpExtensions for details. TABLE METHODS
These are methods that return tables of information in the form of a reference to a hash. Overrides $c6500->i_duplex() Returns reference to hash of iid to current link duplex setting. Newer software versions return duplex based upon the result of $c6500->el_duplex(). Otherwise it uses the result of the call to CiscoStack::i_duplex(). See SNMP::Info::Etherlike for el_duplex() method and SNMP::Info::CiscoStack for its i_duplex() method. $c6500->i_duplex_admin() Returns reference to hash of iid to administrative duplex setting. Newer software versions return duplex based upon the result of $c6500->p_duplex(). Otherwise it uses the result of the call to CiscoStack::i_duplex(). See SNMP::Info::CiscoStack for its i_duplex() and p_duplex() methods. $c6500->set_i_duplex_admin(duplex, ifIndex) Sets port duplex, must be supplied with duplex and port "ifIndex". Speed choices are 'auto', 'half', 'full'. Crosses $c6500->p_port() with $c6500->p_duplex() to utilize port "ifIndex". Example: my %if_map = reverse %{$c6500->interfaces()}; $c6500->set_i_duplex_admin('auto', $if_map{'FastEthernet0/1'}) or die "Couldn't change port duplex. ",$c6500->error(1); Table Methods imported from SNMP::Info::CiscoVTP See documentation in "TABLE METHODS" in SNMP::Info::CiscoVTP for details. Table Methods imported from SNMP::Info::CiscoStack See documentation in "TABLE METHODS" in SNMP::Info::CiscoStack for details. Table Methods imported from SNMP::Info::CDP See documentation in "TABLE METHODS" in SNMP::Info::CDP for details. Table Methods imported from SNMP::Info::CiscoStats See documentation in "TABLE METHODS" in SNMP::Info::CiscoStats for details. Table Methods imported from SNMP::Info::CiscoImage See documentation in "TABLE METHODS" in SNMP::Info::CiscoImage for details. Table Methods imported from SNMP::Info::CiscoPortSecurity See documentation in "TABLE METHODS" in SNMP::Info::CiscoPortSecurity for details. Table Methods imported from SNMP::Info::CiscoConfig See documentation in "TABLE METHODS" in SNMP::Info::CiscoConfig for details. Table Methods imported from SNMP::Info::CiscoPower See documentation in "TABLE METHODS" in SNMP::Info::CiscoPower for details. Table Methods imported from SNMP::Info::CiscoStpExtensions Table Methods imported from SNMP::Info::Layer3 See documentation in "TABLE METHODS" in SNMP::Info::Layer3 for details. See documentation in "TABLE METHODS" in SNMP::Info::CiscoStpExtensions for details. perl v5.12.4 2011-09-28 Info::Layer3::C6500(3pm)