Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2019-0056

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
09/10/2019
Last modified:
28/10/2021

Description

This issue only affects devices with three (3) or more MPC10's installed in a single chassis with OSPF enabled and configured on the device. An Insufficient Resource Pool weakness allows an attacker to cause the device's Open Shortest Path First (OSPF) states to transition to Down, resulting in a Denial of Service (DoS) attack. This attack requires a relatively large number of specific Internet Mixed (IMIXed) types of genuine and valid IPv6 packets to be transferred by the attacker in a relatively short period of time, across three or more PFE's on the device at the same time. Continued receipt of the traffic sent by the attacker will continue to cause OSPF to remain in the Down starting state, or flap between other states and then again to Down, causing a persistent Denial of Service. This attack will affect all IPv4, and IPv6 traffic served by the OSPF routes once the OSPF states transition to Down. This issue affects: Juniper Networks Junos OS on MX480, MX960, MX2008, MX2010, MX2020: 18.1 versions prior to 18.1R2-S4, 18.1R3-S5; 18.1X75 version 18.1X75-D10 and later versions; 18.2 versions prior to 18.2R1-S5, 18.2R2-S3, 18.2R3; 18.2X75 versions prior to 18.2X75-D50; 18.3 versions prior to 18.3R1-S4, 18.3R2, 18.3R3; 18.4 versions prior to 18.4R1-S2, 18.4R2.

Impact

Vector 3.x
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.50 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x
7.50
Severity 3.x
HIGH
Vector 2.0
AV:N/AC:L/Au:N/C:N/I:N/A:P CVSS v2.0 Severity and Metrics:

Base Score: 5.00 MEDIUM
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P

Attack Vector (AV): Network
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Physical

Base Score 2.0
5.00
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:juniper:junos:18.1:-:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:18.1:r2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:18.1:r2-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:18.1:r2-s2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:18.1:r3:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:18.1:r3-s2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:18.1:r3-s3:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:18.1:r3-s4:*:*:*:*:*:*
cpe:2.3:h:juniper:mx2008:-:*:*:*:*:*:*:*
cpe:2.3:h:juniper:mx2010:-:*:*:*:*:*:*:*
cpe:2.3:h:juniper:mx2020:-:*:*:*:*:*:*:*
cpe:2.3:h:juniper:mx480:-:*:*:*:*:*:*:*
cpe:2.3:h:juniper:mx960:-:*:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:18.1x75:d10:*:*:*:*:*:*
cpe:2.3:h:juniper:mx2008:-:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools