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- #
- # This script was written by Renaud Deraison <deraison@cvs.nessus.org>
- #
- # See the Nessus Script License for details
- #
- # Script audit and contributions from Carmichael Security <http://www.carmichaelsecurity.com>
- # Erik Anderson <eanders@carmichaelsecurity.com>
- # Fixed broken link
- #
-
-
- if(description)
- {
- script_id(10973);
- script_bugtraq_id(315);
- script_cve_id("CVE-1999-0162");
- script_version("$Revision: 1.5 $");
-
- name["english"] = "CSCdi34061";
-
- script_name(english:name["english"]);
-
- desc["english"] = "
-
- The remote seems to be vulnerable to a flaw in IOS when
- the keyword 'established' is being used in the ACLs.
-
- This bug can, under very specific circumstances and only with
- certain IP host implementations, allow unauthorized packets to
- circumvent a filtering router.
-
- This vulnerability is documented as Cisco Bug ID CSCdi34061.
-
- Solution : http://www.cisco.com/warp/public/707/2.html
- Risk factor : High
-
- *** As Nessus solely relied on the banner of the remote host
- *** this might be a false positive
- ";
- script_description(english:desc["english"]);
-
- summary["english"] = "Uses SNMP to determine if a flaw is present";
- script_summary(english:summary["english"]);
-
- script_category(ACT_GATHER_INFO);
-
- script_copyright(english:"This script is (C) 2002 Renaud Deraison");
-
- script_family(english:"CISCO");
-
- script_dependencie("snmp_sysDesc.nasl",
- "snmp_cisco_type.nasl");
- script_require_keys("SNMP/community",
- "SNMP/sysDesc",
- "CISCO/model");
- exit(0);
- }
-
-
- # The code starts here
- ok=0;
- os = get_kb_item("SNMP/sysDesc"); if(!os)exit(0);
- hardware = get_kb_item("CISCO/model"); if(!hardware)exit(0);
-
-
-
-
- # Check for the required operating system...
- #----------------------------------------------------------------
- # Is this IOS ?
- if(!egrep(pattern:".*(Internetwork Operating|IOS).*", string:os))exit(0);
- # 10.0
- if(egrep(string:os, pattern:"(10\.0\([0-9]\)|10\.0),"))ok=1;
-
- # 10.2
- if(egrep(string:os, pattern:"(10\.2\([0-5]\)|10\.2),"))ok=1;
-
- # 10.3
- if(egrep(string:os, pattern:"(10\.3\([0-2]\)|10\.3),"))ok=1;
-
-
- #----------------------------------------------
-
- if(ok)security_hole(port:161, proto:"udp");
-