Juniper Junos OS Multiple Vulnerabilities (JSA112187)

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

include('compat.inc');

if (description)
{
  script_id(374265);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/10/30");

  script_cve_id(
    "CVE-2026-33789",
    "CVE-2026-33795",
    "CVE-2026-33796",
    "CVE-2026-101927",
    "CVE-2026-101934",
    "CVE-2026-101939",
    "CVE-2026-101940",
    "CVE-2026-101941",
    "CVE-2026-101942",
    "CVE-2026-101943",
    "CVE-2026-101944",
    "CVE-2026-101945",
    "CVE-2026-101946",
    "CVE-2026-101948",
    "CVE-2026-101949",
    "CVE-2026-101951",
    "CVE-2026-101952",
    "CVE-2026-101954",
    "CVE-2026-101957",
    "CVE-2026-101959",
    "CVE-2026-101961",
    "CVE-2026-101962",
    "CVE-2026-101963",
    "CVE-2026-101964",
    "CVE-2026-101968",
    "CVE-2026-101969",
    "CVE-2026-101970",
    "CVE-2026-101971",
    "CVE-2026-101972",
    "CVE-2026-101974",
    "CVE-2026-101975",
    "CVE-2026-101976",
    "CVE-2026-101977",
    "CVE-2026-101979",
    "CVE-2026-101981",
    "CVE-2026-101982",
    "CVE-2026-101983",
    "CVE-2026-101984",
    "CVE-2026-101986",
    "CVE-2026-101987",
    "CVE-2026-101988",
    "CVE-2026-101989",
    "CVE-2026-101990",
    "CVE-2026-101991",
    "CVE-2026-101992",
    "CVE-2026-101993",
    "CVE-2026-101994",
    "CVE-2026-101995",
    "CVE-2026-101996",
    "CVE-2026-101999",
    "CVE-2026-102000",
    "CVE-2026-102011",
    "CVE-2026-102013",
    "CVE-2026-102015",
    "CVE-2026-102016",
    "CVE-2026-102017",
    "CVE-2026-102018",
    "CVE-2026-102019",
    "CVE-2026-102020",
    "CVE-2026-102021",
    "CVE-2026-102022",
    "CVE-2026-102024",
    "CVE-2026-102025",
    "CVE-2026-102026",
    "CVE-2026-102027",
    "CVE-2026-102028",
    "CVE-2026-102029",
    "CVE-2026-102030",
    "CVE-2026-102032",
    "CVE-2026-102033",
    "CVE-2026-102034",
    "CVE-2026-102035",
    "CVE-2026-102036",
    "CVE-2026-102039",
    "CVE-2026-102040",
    "CVE-2026-102041",
    "CVE-2026-102042",
    "CVE-2026-102043",
    "CVE-2026-102044",
    "CVE-2026-102047",
    "CVE-2026-102049",
    "CVE-2026-102050",
    "CVE-2026-102051",
    "CVE-2026-102052",
    "CVE-2026-102053",
    "CVE-2026-102054",
    "CVE-2026-102055",
    "CVE-2026-102056",
    "CVE-2026-102058",
    "CVE-2026-102059",
    "CVE-2026-102060",
    "CVE-2026-102061",
    "CVE-2026-102064",
    "CVE-2026-102065",
    "CVE-2026-102066",
    "CVE-2026-102067",
    "CVE-2026-102071",
    "CVE-2026-102175",
    "CVE-2026-102177",
    "CVE-2026-102178",
    "CVE-2026-102179",
    "CVE-2026-102180",
    "CVE-2026-102183",
    "CVE-2026-102184",
    "CVE-2026-102185",
    "CVE-2026-103993"
  );
  script_xref(name:"JSA", value:"JSA112187");
  script_xref(name:"IAVA", value:"2026-A-1144");

  script_name(english:"Juniper Junos OS Multiple Vulnerabilities (JSA112187)");

  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 multiple vulnerabilities as referenced in the
JSA112187 advisory.

  - A Stack-based Buffer Overflow vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos
    OS and Junos OS Evolved allows a configured external BGP neighbor to execute arbitrary commands with root
    privileges via BMP route monitoring. (CVE-2026-33796)

  - A Heap-based Buffer Overflow vulnerability in the sdxd service-deployment daemon of Juniper Networks Junos
    OS and Junos OS Evolved allows a remote unauthenticated attacker who can control or intercept the
    configured SDX/SRC server connection to execute code as root or cause denial of service via a crafted
    frame received over the service-deployment TCP connection. (CVE-2026-102175)

  - A Stack-based Buffer Overflow vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos
    OS and Junos OS Evolved allows an unauthenticated BGP peer to cause a denial of service and potential
    root-level command execution via crafted BGP route updates when the BGP Monitoring Protocol (BMP) is
    enabled. (CVE-2026-33789)

  - A NULL Pointer Dereference vulnerability in the routing protocol daemon (RPD) of Juniper Networks Junos OS
    and Junos OS Evolved allows a configured peer sending a BGP UPDATE to cause a denial of service when an
    import policy with `then source-based-forwarding next-hop next-table <X>` is configured to reference a
    routing table that does not exist. (CVE-2026-101939)

  - A NULL Pointer Dereference vulnerability in the rpd routing daemon of Juniper Networks Junos OS and Junos
    OS Evolved allows an unauthenticated configured BGP peer to cause a denial of service via a BGP UPDATE
    when ISO-VPN and egress-protection configuration is enabled. (CVE-2026-101940)

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/2026-10-Security-Bulletin-Junos-OS-and-Junos-OS-Evolved-Multiple-vulnerabilities-resolved
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?59975f8b");
  script_set_attribute(attribute:"solution", value:
"Apply the relevant Junos software release referenced in Juniper advisory JSA112187");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
  script_set_attribute(attribute:"cvss4_vector", value:"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:L");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2026-33796");

  script_set_attribute(attribute:"vuln_publication_date", value:"2026/10/14");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/10/14");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/10/30");

  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) 2026 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':'23.2R2-S7.7'},
  {'min_ver':'0.0-EVO', 'fixed_ver':'23.2R2-S7.7-EVO'},
  {'min_ver':'23.4', 'fixed_ver':'23.4R2-S8.13'},
  {'min_ver':'23.4-EVO', 'fixed_ver':'23.4R2-S8.11-EVO'},
  {'min_ver':'23.4X100-EVO','fixed_ver':'23.4X999-EVO','fixed_display':'See vendor advisory'},
  {'min_ver':'24.2', 'fixed_ver':'24.2R2-S5.5'},
  {'min_ver':'24.2-EVO', 'fixed_ver':'24.2R2-S5.6-EVO'},
  {'min_ver':'24.4', 'fixed_ver':'24.4R2-S5'},
  {'min_ver':'24.4-EVO', 'fixed_ver':'24.4R2-S5-EVO'},
  {'min_ver':'25.2', 'fixed_ver':'25.2R2-S2'},
  {'min_ver':'25.2-EVO', 'fixed_ver':'25.2R2-S2-EVO'},
  {'min_ver':'25.2X100-EVO', 'fixed_ver':'25.2X100-D35-EVO'},
  {'min_ver':'25.4', 'fixed_ver':'25.4R1-S3'},
  {'min_ver':'25.4-EVO', 'fixed_ver':'25.4R1-S3-EVO'},
  {'min_ver':'25.4X300-EVO', 'fixed_ver':'25.4X300-D40-EVO'},
  {'min_ver':'26.2', 'fixed_ver':'26.2R1-S2'},
  {'min_ver':'26.2-EVO', 'fixed_ver':'26.2R1-S2-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);