Vulnerabilities > CVE-2002-2052 - Denial of Service vulnerability in Cisco IOS 12.1(6.5)

047910
CVSS 5.0 - MEDIUM
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
NONE
Integrity impact
NONE
Availability impact
PARTIAL
network
low complexity
cisco
nessus
NVD
Published: 2002-12-31
Updated: 2008-09-05

Summary

Cisco 2611 router running IOS 12.1(6.5), possibly an interim release, allows remote attackers to cause a denial of service via port scans such as (1) scanning all ports on a single host and (2) scanning a network of hosts for a single open port through the router. NOTE: the vendor could not reproduce this issue, saying that the original reporter was using an interim release of the software.

Vulnerable Configurations

Part Description Count
OS
Cisco
1

Nessus

NASL familyCISCO
NASL idCISCO-20020606-PORTSCAN-DOS.NASL
descriptionIt is possible to cause a denial of service by scanning all ports on the host or scanning a network of hosts for a single open port through the device.
last seen2020-06-01
modified2020-06-02
plugin id17774
published2012-01-10
reporterThis script is Copyright (C) 2012-2018 and is owned by Tenable, Inc. or an Affiliate thereof.
sourcehttps://www.tenable.com/plugins/nessus/17774
titleCisco IOS Portscan Remote Denial of Service
code
#
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(17774);
  script_version("1.7");
  script_cvs_date("Date: 2018/11/15 20:50:20");

  script_cve_id("CVE-2002-2052");
  script_bugtraq_id(4947);

  script_name(english:"Cisco IOS Portscan Remote Denial of Service");
  script_summary(english:"Checks IOS version");

  script_set_attribute(attribute:"synopsis", value:
"The remote device is missing a vendor-supplied security patch.");
  script_set_attribute(attribute:"description", value:
"It is possible to cause a denial of service by scanning all ports on
the host or scanning a network of hosts for a single open port through
the device.");
  script_set_attribute(attribute:"see_also", value:"https://seclists.org/bugtraq/2002/Jun/33");
  script_set_attribute(attribute:"solution", value:
"Upgrade to IOS 12.1(6a), as it is reportedly unaffected by the
vulnerability.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P");
  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:"vuln_publication_date", value:"2002/06/05");
  script_set_attribute(attribute:"patch_publication_date", value:"2002/06/06");
  script_set_attribute(attribute:"plugin_publication_date", value:"2012/01/10");

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

  script_category(ACT_GATHER_INFO);
  script_family(english:"CISCO");

  script_copyright(english:"This script is Copyright (C) 2012-2018 and is owned by Tenable, Inc. or an Affiliate thereof.");

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

  exit(0);
}

include("cisco_func.inc");

version = get_kb_item_or_exit('Host/Cisco/IOS/Version');

# Cisco wasn't able to reproduce this issue, so only run the check if 
# PCI_DSS is enabled
if (!get_kb_item("Settings/PCI_DSS")) exit(0, "PCI-DSS compliance checking is not enabled.");

# Affected 12.1
if (check_release(version:version, patched:make_list('12.1(6a)')))
{
  security_warning(port:0, extra:'\nUpdate to '+patch_update+' or later.\n');
  exit(0);
}

exit(0, "The host is not affected.");

References