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- #
- # (C) Tenable Network Security
- #
- #
- #
-
-
- if(description)
- {
- script_id(15782);
- script_bugtraq_id(11649);
-
- script_version("$Revision: 1.2 $");
-
- name["english"] = "CSCee50294";
-
- script_name(english:name["english"]);
-
- desc["english"] = "
-
- The remote router contains a version of IOS which has flaw in the DHCP
- service/relay service which may let an attacker to disable DHCP serving
- and or relaying on the remote router.
-
- CISCO identifies this vulnerability as bug id CSCee50294.
-
- Solution : http://www.cisco.com/warp/public/707/cisco-sa-20041110-dhcp.shtml
- 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) 2004 Tenable Network Security");
-
- 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);
- # 12.2EW
- if(egrep(string:os, pattern:"((12\.2\(([0-9]|1[0-7])\)|12\.2)EW[0-9]*|12\.2\(18\)EW[0-1]),"))ok=1;
-
- # 12.2EWA
- if(egrep(string:os, pattern:"(12\.2\(([0-9]|1[0-9])\)|12\.2)EWA[0-9]*,"))ok=1;
-
- # 12.2S
- if(egrep(string:os, pattern:"((12\.2\(([0-9]|1[0-7])\)|12\.2)S[0-9]*|12\.2\(18\)S[0-5]),"))ok=1;
-
- # 12.2SE
- if(egrep(string:os, pattern:"((12\.2\(([0-9]|1[0-9])\)|12\.2)SE[0-9]*|12\.2\(20\)SE[0-2]),"))ok=1;
-
- # 12.2SV
- if(egrep(string:os, pattern:"(12\.2\(([0-9]|[1-1][0-9]|2[0-3])\)|12\.2)SV[0-9]*,"))ok=1;
-
- # 12.2SW
- if(egrep(string:os, pattern:"(12\.2\(([0-9]|[1-1][0-9]|2[0-4])\)|12\.2)SW[0-9]*,"))ok=1;
-
- # 12.2SZ
- if(egrep(string:os, pattern:"(12\.2\([0-9]*\)|12\.2)SZ[0-9]*,"))ok=1;
-
-
- #----------------------------------------------
-
- if(ok)security_hole(port:161, proto:"udp");
-