Juniper Junos OS Vulnerability (JSA69718)

##
# (C) Tenable, Inc.
##

include('compat.inc');

if (description)
{
  script_id(163768);
  script_version("1.6");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/06/18");

  script_cve_id("CVE-2022-22214");
  script_xref(name:"JSA", value:"JSA69718");
  script_xref(name:"IAVA", value:"2022-A-0280-S");

  script_name(english:"Juniper Junos OS Vulnerability (JSA69718)");

  script_set_attribute(attribute:"synopsis", value:
"The remote device is missing a vendor-supplied security patch.");
  script_set_attribute(attribute:"description", value:
"The version of Junos OS installed on the remote host is affected by a vulnerability as referenced in the JSA69718
advisory.

  - An Improper Input Validation vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos
    OS and Junos OS Evolved allows an adjacent attacker to cause a PFE crash and thereby a Denial of Service
    (DoS). An FPC will crash and reboot after receiving a specific transit IPv6 packet over MPLS. Continued
    receipt of this packet will create a sustained Denial of Service (DoS) condition. This issue does not
    affect systems configured for IPv4 only. This issue affects: Juniper Networks Junos OS All versions prior
    to 12.3R12-S21; 15.1 versions prior to 15.1R7-S10; 17.3 versions prior to 17.3R3-S12; 18.3 versions prior
    to 18.3R3-S6; 18.4 versions prior to 18.4R2-S9, 18.4R3-S9; 19.1 versions prior to 19.1R2-S3, 19.1R3-S7;
    19.2 versions prior to 19.2R1-S7, 19.2R3-S3; 19.3 versions prior to 19.3R2-S7, 19.3R3-S4; 19.4 versions
    prior to 19.4R3-S5; 20.1 versions prior to 20.1R3; 20.2 versions prior to 20.2R3-S2; 20.3 versions prior
    to 20.3R3; 20.4 versions prior to 20.4R2-S2, 20.4R3; 21.1 versions prior to 21.1R2. Juniper Networks Junos
    OS Evolved All versions prior to 20.4R3-S3-EVO; 21.2 versions prior to 21.2R3-EVO; 21.3 versions prior to
    21.3R2-S1-EVO, 21.3R3-EVO; 21.4 versions prior to 21.4R2-EVO. (CVE-2022-22214)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
  # https://supportportal.juniper.net/s/article/2022-07-Security-Bulletin-Junos-OS-and-Junos-OS-Evolved-In-an-MPLS-scenario-upon-receipt-of-a-specific-IPv6-packet-an-FPC-will-crash-CVE-2022-22214
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?0768ddd6");
  script_set_attribute(attribute:"solution", value:
"Apply the relevant Junos software release referenced in Juniper advisory JSA69718");
  script_set_cvss_base_vector("CVSS2#AV:A/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:A/AC:L/PR:N/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-2022-22214");

  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:"2022/07/20");
  script_set_attribute(attribute:"patch_publication_date", value:"2022/07/13");
  script_set_attribute(attribute:"plugin_publication_date", value:"2022/08/03");

  script_set_attribute(attribute:"plugin_type", value:"combined");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:juniper:junos");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Junos Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 2022-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("junos_version.nasl");
  script_require_keys("Host/Juniper/JUNOS/Version");

  exit(0);
}

include('junos.inc');


var ver = get_kb_item_or_exit('Host/Juniper/JUNOS/Version');

var vuln_ranges = [
  {'min_ver':'0.0', 'fixed_ver':'12.3R12-S21'},
  {'min_ver':'0.0', 'fixed_ver':'20.4R3-S3-EVO'},
  {'min_ver':'15.1', 'fixed_ver':'15.1R7-S10'},
  {'min_ver':'17.3', 'fixed_ver':'17.3R3-S12'},
  {'min_ver':'18.3', 'fixed_ver':'18.3R3-S6'},
  {'min_ver':'18.4', 'fixed_ver':'18.4R2-S9'},
  {'min_ver':'18.4R3', 'fixed_ver':'18.4R3-S9'},
  {'min_ver':'19.1', 'fixed_ver':'19.1R2-S3'},
  {'min_ver':'19.1R3', 'fixed_ver':'19.1R3-S7'},
  {'min_ver':'19.2', 'fixed_ver':'19.2R1-S7'},
  {'min_ver':'19.2R2', 'fixed_ver':'19.2R3-S3'},
  {'min_ver':'19.3', 'fixed_ver':'19.3R2-S7'},
  {'min_ver':'19.3R3', 'fixed_ver':'19.3R3-S4'},
  {'min_ver':'19.4', 'fixed_ver':'19.4R3-S5'},
  {'min_ver':'20.1', 'fixed_ver':'20.1R3'},
  {'min_ver':'20.2', 'fixed_ver':'20.2R3-S2'},
  {'min_ver':'20.3', 'fixed_ver':'20.3R3'},
  {'min_ver':'20.4', 'fixed_ver':'20.4R2-S2', 'fixed_display':'20.4R2-S2, 20.4R3'},
  {'min_ver':'21.1', 'fixed_ver':'21.1R2'},
  {'min_ver':'21.2', 'fixed_ver':'21.2R3-EVO'},
  {'min_ver':'21.3', 'fixed_ver':'21.3R2-S1-EVO'},
  {'min_ver':'21.3R3', 'fixed_ver':'21.3R3-EVO'},
  {'min_ver':'21.4', 'fixed_ver':'21.4R2-EVO'}
];

var fix = junos_compare_range(target_version:ver, vuln_ranges:vuln_ranges);
if (empty_or_null(fix)) audit(AUDIT_INST_VER_NOT_VULN, 'Junos OS', ver);
var report = get_report(ver:ver, fix:fix);
security_report_v4(severity:SECURITY_WARNING, port:0, extra:report);