Cisco ASR 9000 Series Aggregation Services Routers tmp Files Denial of Service (CVE-2015-4277)

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

include('compat.inc');

if (description)
{
  script_id(501247);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/12/14");

  script_cve_id("CVE-2015-4277");

  script_name(english:"Cisco ASR 9000 Series Aggregation Services Routers tmp Files Denial of Service (CVE-2015-4277)");

  script_set_attribute(attribute:"synopsis", value:
"The remote OT asset is affected by a vulnerability.");
  script_set_attribute(attribute:"description", value:
"The global-configuration implementation on Cisco ASR 9000 devices with
software 5.1.3 and 5.3.0 improperly closes vty sessions after a
commit/end operation, which allows local users to cause a denial of
service (tmp/*config file creation, memory consumption, and device
hang) via unspecified vectors, aka Bug ID CSCut93842.

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://tools.cisco.com/security/center/viewAlert.x?alertId=39939");
  script_set_attribute(attribute:"see_also", value:"http://www.securitytracker.com/id/1033259");
  script_set_attribute(attribute:"solution", value:
"Refer to the vendor advisory.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:N/I:N/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2015-4277");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2015/08/19");
  script_set_attribute(attribute:"patch_publication_date", value:"2015/08/19");
  script_set_attribute(attribute:"plugin_publication_date", value:"2023/07/25");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:cisco:nx-os:5.1.3");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:cisco:nx-os:5.3.0");
  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) 2023 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:5.1.3" :
        {"versionEndIncluding" : "5.1.3", "versionStartIncluding" : "5.1.3", "family" : "NXOS"},
    "cpe:/o:cisco:nx-os:5.3.0" :
        {"versionEndIncluding" : "5.3.0", "versionStartIncluding" : "5.3.0", "family" : "NXOS"}
};

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