CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS4
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/SC:N/VI:H/SI:N/VA:H/SA:N
AI Score
Confidence
High
EPSS
Percentile
9.9%
The version of Junos OS installed on the remote host is affected by multiple vulnerabilities as referenced in the JSA82975 advisory.
Note that Nessus has not tested for these issues but has instead relied only on the application’s self-reported version number.
#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
##
include('compat.inc');
if (description)
{
script_id(202114);
script_version("1.2");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/07/19");
script_cve_id(
"CVE-2024-39520",
"CVE-2024-39521",
"CVE-2024-39522",
"CVE-2024-39523",
"CVE-2024-39524"
);
script_xref(name:"JSA", value:"JSA82975");
script_xref(name:"IAVA", value:"2024-A-0385");
script_name(english:"Juniper Junos OS Multiple Vulnerabilities (JSA82975)");
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
JSA82975 advisory.
- An Improper Neutralization of Special Elements vulnerability in Juniper Networks Junos OS Evolved commands
allows a local, authenticated attacker with low privileges to escalate their privileges to 'root' leading
to a full compromise of the system. (CVE-2024-39520, CVE-2024-39521, CVE-2024-39522, CVE-2024-39523,
CVE-2024-39524)
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-Evolved-Multiple-CLI-parameter-processing-issues-allowing-privilege-escalation-resolved
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?e28ba556");
script_set_attribute(attribute:"solution", value:
"Apply the relevant Junos software release referenced in Juniper advisory JSA82975");
script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C");
script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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-2024-39524");
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_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) 2024 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("junos_version.nasl");
script_require_keys("Host/Juniper/JUNOS/Version", "Host/Juniper/model");
exit(0);
}
include('junos.inc');
var model = get_kb_item_or_exit('Host/Juniper/model');
if (model !~ "^(ACX|PTX|QFX)")
{
audit(AUDIT_DEVICE_NOT_VULN, model);
}
var ver = get_kb_item_or_exit('Host/Juniper/JUNOS/Version');
var vuln_ranges = [
{'min_ver':'21.2-EVO', 'fixed_ver':'21.2R3-S8-EVO', 'model':'^(ACX|PTX|QFX)'},
{'min_ver':'21.4-EVO', 'fixed_ver':'21.4R3-S7-EVO', 'model':'^(ACX|PTX|QFX)'},
{'min_ver':'22.2-EVO', 'fixed_ver':'22.2R3-EVO', 'model':'^(ACX|PTX|QFX)'},
{'min_ver':'22.3-EVO', 'fixed_ver':'22.3R2-EVO', 'model':'^(ACX|PTX|QFX)'},
{'min_ver':'22.4-EVO', 'fixed_ver':'22.4R2-EVO', 'model':'^(ACX|PTX|QFX)'}
];
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);
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS4
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/SC:N/VI:H/SI:N/VA:H/SA:N
AI Score
Confidence
High
EPSS
Percentile
9.9%