CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
Percentile
42.5%
The version of Junos OS installed on the remote host is affected by a denial of service (DoS) vulnerability. Processing a specific BGP packet can lead to a routing process daemon (RPD) crash and restart. This issue can occur even before the BGP session with the peer is established. Repeated receipt of this specific BGP packet can result in an extended DoS condition.
Note that Nessus has not tested for this issue but has instead relied only on the application’s self-reported version number.
#
# (C) Tenable Network Security, Inc.
#
include('compat.inc');
if (description)
{
script_id(139032);
script_version("1.3");
script_set_attribute(attribute:"plugin_modification_date", value:"2023/07/20");
script_cve_id("CVE-2020-1648");
script_xref(name:"JSA", value:"JSA11035");
script_name(english:"Junos OS: RPD crash when processing a specific BGP packet (JSA11035)");
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 denial of service (DoS) vulnerability. Processing
a specific BGP packet can lead to a routing process daemon (RPD) crash and restart. This issue can occur even before the
BGP session with the peer is established. Repeated receipt of this specific BGP packet can result in an extended DoS
condition.
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/2020-07-Security-Bulletin-Junos-OS-and-Junos-OS-Evolved-RPD-crash-when-processing-a-specific-BGP-packet-CVE-2020-1648
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?64ae2374");
script_set_attribute(attribute:"solution", value:
"Apply the relevant Junos software release referenced in Juniper advisory JSA11035");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P");
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-2020-1648");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"vuln_publication_date", value:"2020/07/08");
script_set_attribute(attribute:"patch_publication_date", value:"2020/07/08");
script_set_attribute(attribute:"plugin_publication_date", value:"2020/07/28");
script_set_attribute(attribute:"plugin_type", value:"combined");
script_set_attribute(attribute:"cpe", value:"cpe:/o:juniper:junos");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Junos Local Security Checks");
script_copyright(english:"This script is Copyright (C) 2020-2023 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':'18.2X75', 'fixed_ver':'18.2X75-D53', 'fixed_display':'18.2X75-D53, 18.2X75-D60.2, 18.2X75-D65.1, 18.2X75-D70'},
{'min_ver':'18.2X75-D50.8', 'fixed_ver':'18.2X75-D52.8'},
{'min_ver':'19.4', 'fixed_ver':'19.4R1'},
{'min_ver':'19.4-EVO', 'fixed_ver':'19.4R2-S2-EVO'},
{'min_ver':'20.1', 'fixed_ver':'20.1R1-S2', 'fixed_display':'20.1R1-S2, 20.1R2'},
{'min_ver':'20.1-EVO', 'fixed_ver':'20.1R2-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);
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
Percentile
42.5%