Juniper Junos OS Vulnerability (JSA83012)

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

include('compat.inc');

if (description)
{
  script_id(202126);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/07/10");

  script_cve_id("CVE-2024-39550");
  script_xref(name:"JSA", value:"JSA83012");

  script_name(english:"Juniper Junos OS Vulnerability (JSA83012)");

  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 JSA83012
advisory.

  - A Missing Release of Memory after Effective Lifetime vulnerability in the rtlogd process of Juniper
    Networks Junos OS on MX Series with SPC3 allows an unauthenticated, adjacent attacker to trigger internal
    events cause ( which can be done by repeated port flaps) to cause a slow memory leak, ultimately leading
    to a Denial of Service (DoS). (CVE-2024-39550)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
  # https://supportportal.juniper.net/s/article/2024-07-Security-Bulletin-Junos-OS-MX-Series-with-SPC3-line-card-Port-flaps-causes-rtlogd-memory-leak-leading-to-Denial-of-Service-CVE-2024-39550
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?22f65300");
  script_set_attribute(attribute:"solution", value:
"Apply the relevant Junos software release referenced in Juniper advisory JSA83012");
  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-2024-39550");

  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:"2024/07/10");
  script_set_attribute(attribute:"patch_publication_date", value:"2024/07/10");
  script_set_attribute(attribute:"plugin_publication_date", value:"2024/07/10");

  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) 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':'21.2R3', 'fixed_ver':'21.2R3-S8'},
  {'min_ver':'21.4R2', 'fixed_ver':'21.4R3-S6'},
  {'min_ver':'22.1', 'fixed_ver':'22.1R3-S5'},
  {'min_ver':'22.2', 'fixed_ver':'22.2R3-S3'},
  {'min_ver':'22.3', 'fixed_ver':'22.3R3-S2'},
  {'min_ver':'22.4', 'fixed_ver':'22.4R3-S1'},
  {'min_ver':'23.2', 'fixed_ver':'23.2R2'},
  {'min_ver':'23.4', 'fixed_ver':'23.4R2'}
];

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);