Cisco Catalyst 4500E Series Switch with Cisco Catalyst Supervisor Engine 7L-E Denial of Service Vulnerability (cisco-sa-20120926-ecc)

2013-07-08T00:00:00
ID CISCO-SA-20120926-ECC.NASL
Type nessus
Reporter Tenable
Modified 2018-11-15T00:00:00

Description

The Catalyst 4500E series switch with Supervisor Engine 7L-E contains a denial of service (DoS) vulnerability when processing specially crafted packets that can cause a reload of the device. Cisco has released free software updates that address this vulnerability. Workarounds that mitigate this vulnerability are not available.

                                        
                                            #TRUSTED 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
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Cisco Security Advisory cisco-sa-20120926-ecc.
# The text itself is copyright (C) Cisco
#

if (NASL_LEVEL < 3000) exit(0);

include("compat.inc");

if (description)
{
  script_id(67204);
  script_version("1.10");
  script_set_attribute(attribute:"plugin_modification_date", value:"2018/11/15");

  script_cve_id("CVE-2012-4622");
  script_bugtraq_id(55701);
  script_xref(name:"CISCO-BUG-ID", value:"CSCty88456");
  script_xref(name:"CISCO-SA", value:"cisco-sa-20120926-ecc");
  script_xref(name:"IAVA", value:"2012-A-0154");

  script_name(english:"Cisco Catalyst 4500E Series Switch with Cisco Catalyst Supervisor Engine 7L-E Denial of Service Vulnerability (cisco-sa-20120926-ecc)");
  script_summary(english:"Checks the IOS version.");

  script_set_attribute(
    attribute:"synopsis",
    value:"The remote device is missing a vendor-supplied security patch."
  );
  script_set_attribute(
    attribute:"description",
    value:
"The Catalyst 4500E series switch with Supervisor Engine 7L-E contains
a denial of service (DoS) vulnerability when processing specially
crafted packets that can cause a reload of the device. Cisco has
released free software updates that address this vulnerability.
Workarounds that mitigate this vulnerability are not available."
  );
  # https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20120926-ecc
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?3693a5e7"
  );
  script_set_attribute(
    attribute:"solution",
    value:
"Apply the relevant patch referenced in Cisco Security Advisory
cisco-sa-20120926-ecc."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:N/I:N/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:cisco:ios");

  script_set_attribute(attribute:"vuln_publication_date", value:"2012/09/26");
  script_set_attribute(attribute:"patch_publication_date", value:"2012/09/25");
  script_set_attribute(attribute:"plugin_publication_date", value:"2013/07/08");

  script_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2013-2018 Tenable Network Security, Inc.");
  script_family(english:"CISCO");

  script_dependencies("cisco_ios_version.nasl");
  script_require_keys("Host/Cisco/IOS/Version");

  exit(0);
}



include("audit.inc");
include("cisco_func.inc");
include("cisco_kb_cmd_func.inc");

flag = 0;
override = 0;

version = get_kb_item_or_exit("Host/Cisco/IOS/Version");
if ( version == '15.0(2)XO' ) flag++;

if (get_kb_item("Host/local_checks_enabled"))
{

  if (flag)
  {
    flag = 0;
    buf = cisco_command_kb_item("Host/Cisco/Config/show_module", "show module");
    if (check_cisco_result(buf))
    {
      if (preg(pattern:"WS-X45-SUP7L-E ", multiline:TRUE, string:buf)) { flag = 1; }
    } else if (cisco_needs_enable(buf)) { flag = 1; override = 1; }
  }
}


if (flag)
{
  security_hole(port:0, extra:cisco_caveat(override));
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");