Juniper Networks Junos OS QFX5100/EX4600 Denial of Service Vulnerability

# SPDX-FileCopyrightText: 2015 Greenbone AG
# Some text descriptions might be excerpted from (a) referenced
# source(s), and are Copyright (C) by the respective right holder(s).
#
# SPDX-License-Identifier: GPL-2.0-only

CPE = "cpe:/o:juniper:junos";

if (description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.106019");
  script_version("2026-04-24T06:23:04+0000");
  script_tag(name:"last_modification", value:"2026-04-24 06:23:04 +0000 (Fri, 24 Apr 2026)");
  script_tag(name:"creation_date", value:"2015-07-14 10:58:02 +0700 (Tue, 14 Jul 2015)");
  script_tag(name:"cvss_base", value:"5.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:N/I:N/A:P");

  script_tag(name:"qod_type", value:"package");

  script_tag(name:"solution_type", value:"VendorFix");

  script_cve_id("CVE-2015-5357");

  script_name("Juniper Networks Junos OS QFX5100/EX4600 Denial of Service Vulnerability");

  script_category(ACT_GATHER_INFO);

  script_family("JunOS Local Security Checks");
  script_copyright("Copyright (C) 2015 Greenbone AG");
  script_dependencies("gb_juniper_junos_consolidation.nasl");
  script_mandatory_keys("juniper/junos/detected", "juniper/junos/model");

  script_tag(name:"summary", value:"Junos OS on EX4600 and QFX series switches is prone to a DoS
vulnerability.");

  script_tag(name:"vuldetect", value:"Checks if a vulnerable OS build is present on the target host.");

  script_tag(name:"insight", value:"A high CPU consumption denial of service vulnerability exists
in the EX4600, QFX3500, QFX3600, and QFX5100 switches running Junos OS.");

  script_tag(name:"impact", value:"Remote unauthenticated attackers can cause a DoS attack.");

  script_tag(name:"affected", value:"Junos OS 13.1, 13.2 and 14.1");

  script_tag(name:"solution", value:"New builds of Junos OS software are available from Juniper.");

  script_xref(name:"URL", value:"http://kb.juniper.net/JSA10684");

  exit(0);
}

include("host_details.inc");
include("revisions-lib.inc");

model = get_kb_item("juniper/junos/model");
if (!model || ((model !~ '^EX4600') &&
    (model !~ '^QFX(35|36|51)00')))
  exit(99);

if (!version = get_app_version(cpe: CPE, nofork: TRUE))
  exit(0);

if (version =~ "^13") {
  if ((revcomp(a: version, b: "13.2X51-D26") < 0) &&
      (revcomp(a: version, b: "13.1X51-D15") >= 0)) {
    security_message(port:0, data:version);
    exit(0);
  }
}

if (version =~ "^14") {
  if ((revcomp(a:version, b:"14.1X53-D10") < 0) &&
      (revcomp(a:version, b:"14.1X") >= 0)) {
    security_message(port:0, data:version);
    exit(0);
  }
}

exit(99);