Cisco NX-OS Allocation of Resources Without Limits or Throttling (CVE-2011-4023)

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

include('compat.inc');

if (description)
{
  script_id(503154);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2025/04/11");

  script_cve_id("CVE-2011-4023");

  script_name(english:"Cisco NX-OS Allocation of Resources Without Limits or Throttling (CVE-2011-4023)");

  script_set_attribute(attribute:"synopsis", value:
"The remote OT asset is affected by a vulnerability.");
  script_set_attribute(attribute:"description", value:
"Memory leak in libcmd in Cisco NX-OS 5.0 on Nexus switches allows
remote authenticated users to cause a denial of service (memory
consumption) via SNMP requests, aka Bug ID CSCtr65682.

This plugin only works with Tenable.ot.
Please visit https://www.tenable.com/products/tenable-ot for more information.");
  # http://www.cisco.com/en/US/docs/switches/datacenter/nexus5000/sw/release/notes/Rel_5_0_3_N2_1/Nexus5000_Release_Notes_5_0_3_N2.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?510705ec");
  script_set_attribute(attribute:"solution", value:
"Refer to the vendor advisory.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2011-4023");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_cwe_id(399);

  script_set_attribute(attribute:"vuln_publication_date", value:"2012/05/03");
  script_set_attribute(attribute:"patch_publication_date", value:"2012/05/03");
  script_set_attribute(attribute:"plugin_publication_date", value:"2025/04/11");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:cisco:nx-os:5.0");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:cisco:nx-os:5.0%282%29");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:cisco:nx-os:5.0%282%29n1%281%29");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:cisco:nx-os:5.0%282%29n2%281%29");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:cisco:nx-os:5.0%282%29n2%281a%29");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:cisco:nx-os:5.0%282a%29");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:cisco:nx-os:5.0%283%29");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:cisco:nx-os:5.0%283%29n1%281%29");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:cisco:nx-os:5.0%283%29n1%281a%29");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:cisco:nx-os:5.0%283%29n1%281b%29");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:cisco:nx-os:5.0%283%29n1%281c%29");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:cisco:nx-os:5.0%283%29n2%281%29");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:cisco:nx-os:5.0%283%29n2%282%29");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:cisco:nx-os:5.0%283%29n2%282a%29");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:cisco:nx-os:5.0%283%29n2%282b%29");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:cisco:nx-os:5.0%285%29");
  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) 2025 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:nx-os:5.0" :
        {"versionEndIncluding" : "5.0", "versionStartIncluding" : "5.0", "family" : "NXOS"},
    "cpe:/o:cisco:nx-os:5.0%282%29" :
        {"versionEndIncluding" : "5.0%282%29", "versionStartIncluding" : "5.0%282%29", "family" : "NXOS"},
    "cpe:/o:cisco:nx-os:5.0%282%29n1%281%29" :
        {"versionEndIncluding" : "5.0%282%29n1%281%29", "versionStartIncluding" : "5.0%282%29n1%281%29", "family" : "NXOS"},
    "cpe:/o:cisco:nx-os:5.0%282%29n2%281%29" :
        {"versionEndIncluding" : "5.0%282%29n2%281%29", "versionStartIncluding" : "5.0%282%29n2%281%29", "family" : "NXOS"},
    "cpe:/o:cisco:nx-os:5.0%282%29n2%281a%29" :
        {"versionEndIncluding" : "5.0%282%29n2%281a%29", "versionStartIncluding" : "5.0%282%29n2%281a%29", "family" : "NXOS"},
    "cpe:/o:cisco:nx-os:5.0%282a%29" :
        {"versionEndIncluding" : "5.0%282a%29", "versionStartIncluding" : "5.0%282a%29", "family" : "NXOS"},
    "cpe:/o:cisco:nx-os:5.0%283%29" :
        {"versionEndIncluding" : "5.0%283%29", "versionStartIncluding" : "5.0%283%29", "family" : "NXOS"},
    "cpe:/o:cisco:nx-os:5.0%283%29n1%281%29" :
        {"versionEndIncluding" : "5.0%283%29n1%281%29", "versionStartIncluding" : "5.0%283%29n1%281%29", "family" : "NXOS"},
    "cpe:/o:cisco:nx-os:5.0%283%29n1%281a%29" :
        {"versionEndIncluding" : "5.0%283%29n1%281a%29", "versionStartIncluding" : "5.0%283%29n1%281a%29", "family" : "NXOS"},
    "cpe:/o:cisco:nx-os:5.0%283%29n1%281b%29" :
        {"versionEndIncluding" : "5.0%283%29n1%281b%29", "versionStartIncluding" : "5.0%283%29n1%281b%29", "family" : "NXOS"},
    "cpe:/o:cisco:nx-os:5.0%283%29n1%281c%29" :
        {"versionEndIncluding" : "5.0%283%29n1%281c%29", "versionStartIncluding" : "5.0%283%29n1%281c%29", "family" : "NXOS"},
    "cpe:/o:cisco:nx-os:5.0%283%29n2%281%29" :
        {"versionEndIncluding" : "5.0%283%29n2%281%29", "versionStartIncluding" : "5.0%283%29n2%281%29", "family" : "NXOS"},
    "cpe:/o:cisco:nx-os:5.0%283%29n2%282%29" :
        {"versionEndIncluding" : "5.0%283%29n2%282%29", "versionStartIncluding" : "5.0%283%29n2%282%29", "family" : "NXOS"},
    "cpe:/o:cisco:nx-os:5.0%283%29n2%282a%29" :
        {"versionEndIncluding" : "5.0%283%29n2%282a%29", "versionStartIncluding" : "5.0%283%29n2%282a%29", "family" : "NXOS"},
    "cpe:/o:cisco:nx-os:5.0%283%29n2%282b%29" :
        {"versionEndIncluding" : "5.0%283%29n2%282b%29", "versionStartIncluding" : "5.0%283%29n2%282b%29", "family" : "NXOS"},
    "cpe:/o:cisco:nx-os:5.0%285%29" :
        {"versionEndIncluding" : "5.0%285%29", "versionStartIncluding" : "5.0%285%29", "family" : "NXOS"}
};

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