Cisco NX-OS Improper Input Validation (CVE-2012-4099)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
##

include('compat.inc');

if (description)
{
  script_id(502763);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/04/21");

  script_cve_id("CVE-2012-4099");

  script_name(english:"Cisco NX-OS Improper Input Validation (CVE-2012-4099)");

  script_set_attribute(attribute:"synopsis", value:
"The remote OT asset is affected by a vulnerability.");
  script_set_attribute(attribute:"description", value:
"The BGP implementation in Cisco NX-OS does not properly filter AS
paths, which allows remote attackers to cause a denial of service (BGP
service reset and resync) via a malformed UPDATE message, aka Bug ID
CSCtn13065.

This plugin only works with Tenable.ot.
Please visit https://www.tenable.com/products/tenable-ot for more information.");
# script_set_attribute(attribute:"see_also", value:"http://osvdb.org/98130");
  # http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2012-4099
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?2e8bc6a0");
# script_set_attribute(attribute:"see_also", value:"http://osvdb.org/98130");
  # http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2012-4099
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?2e8bc6a0");
  script_set_attribute(attribute:"solution", value:
"Refer to the vendor advisory.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:N/I:N/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2012-4099");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");
  script_cwe_id(20);

  script_set_attribute(attribute:"vuln_publication_date", value:"2013/10/14");
  script_set_attribute(attribute:"patch_publication_date", value:"2013/10/14");
  script_set_attribute(attribute:"plugin_publication_date", value:"2024/12/04");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:cisco:nexus_7000_series_switches");
  script_set_attribute(attribute:"generated_plugin", value:"former");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Tenable.ot");

  script_copyright(english:"This script is Copyright (C) 2024-2026 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("tenable_ot_api_integration.nasl");
  script_require_keys("Tenable.ot/Cisco");

  exit(0);
}


include('tenable_ot_cve_funcs.inc');

get_kb_item_or_exit('Tenable.ot/Cisco');

var asset = tenable_ot::assets::get(vendor:'Cisco');

var vuln_cpes = {
    "cpe:/o:cisco:nexus_7000_series_switches" :
        {"versionEndIncluding" : "5.2%280.180%29S14", "versionStartIncluding" : "5.2%280.180%29S14", "family" : "NXOS"}
};

tenable_ot::cve::compare_and_report(asset:asset, cpes:vuln_cpes, severity:SECURITY_WARNING);