Juniper Junos OS Vulnerability (JSA70196)

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

include('compat.inc');

if (description)
{
  script_id(178639);
  script_version("1.0");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/07/20");

  script_cve_id("CVE-2023-22400");
  script_xref(name:"JSA", value:"JSA70196");

  script_name(english:"Juniper Junos OS Vulnerability (JSA70196)");

  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 JSA70196
advisory.

  - An Uncontrolled Resource Consumption vulnerability in the PFE management daemon (evo-pfemand) of Juniper
    Networks Junos OS Evolved allows an unauthenticated, network-based attacker to cause an FPC crash leading
    to a Denial of Service (DoS). When a specific SNMP GET operation or a specific CLI command is executed
    this will cause a GUID resource leak, eventually leading to exhaustion and result in an FPC crash and
    reboot. GUID exhaustion will trigger a syslog message like one of the following for example: evo-
    pfemand[<pid>]: get_next_guid: Ran out of Guid Space ... evo-aftmand-zx[<pid>]: get_next_guid: Ran out of
    Guid Space ... This leak can be monitored by running the following command and taking note of the value in
    the rightmost column labeled Guids: user@host> show platform application-info allocations app evo-pfemand
    | match IFDId|IFLId|Context Node Application Context Name Live Allocs Fails Guids re0 evo-pfemand
    net::juniper::interfaces::IFDId 0 3448 0 3448 re0 evo-pfemand net::juniper::interfaces::IFLId 0 561 0 561
    user@host> show platform application-info allocations app evo-pfemand | match IFDId|IFLId|Context Node
    Application Context Name Live Allocs Fails Guids re0 evo-pfemand net::juniper::interfaces::IFDId 0 3784 0
    3784 re0 evo-pfemand net::juniper::interfaces::IFLId 0 647 0 647 This issue affects Juniper Networks Junos
    OS Evolved: All versions prior to 20.4R3-S3-EVO; 21.1-EVO version 21.1R1-EVO and later versions; 21.2-EVO
    versions prior to 21.2R3-S4-EVO; 21.3-EVO version 21.3R1-EVO and later versions; 21.4-EVO versions prior
    to 21.4R2-EVO. (CVE-2023-22400)

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/2023-01-Security-Bulletin-Junos-OS-Evolved-A-specific-SNMP-GET-operation-and-a-specific-CLI-commands-cause-resources-to-leak-and-eventually-the-evo-pfemand-process-will-crash-CVE-2023-22400
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?868b59e8");
  script_set_attribute(attribute:"solution", value:
"Apply the relevant Junos software release referenced in Juniper advisory JSA70196");
  script_set_cvss_base_vector("CVSS2#AV:N/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:N/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-2023-22400");

  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:"2023/01/11");
  script_set_attribute(attribute:"patch_publication_date", value:"2023/01/11");
  script_set_attribute(attribute:"plugin_publication_date", value:"2023/07/20");

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

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

  script_copyright(english:"This script is Copyright (C) 2023 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':'20.4R3-S3-EVO'},
  {'min_ver':'21.1-EVO', 'fixed_ver':'21.1R1-EVO'},
  {'min_ver':'21.2-EVO', 'fixed_ver':'21.2R3-S4-EVO'},
  {'min_ver':'21.3-EVO', 'fixed_ver':'21.3R1-EVO'},
  {'min_ver':'21.4-EVO', '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_HOLE, port:0, extra:report);