CVE-2020-1638
Juniper Networks Junos OS and Junos OS Evolved FPC Restart Vulnerability by Processing Specific IPv4 Packets.
Description
The FPC (Flexible PIC Concentrator) of Juniper Networks Junos OS and Junos OS Evolved may restart after processing a specific IPv4 packet. Only packets destined to the device itself, successfully reaching the RE through existing edge and control plane filtering, will be able to cause the FPC restart. When this issue occurs, all traffic via the FPC will be dropped. By continuously sending this specific IPv4 packet, an attacker can repeatedly crash the FPC, causing an extended Denial of Service (DoS) condition. This issue can only occur when processing a specific IPv4 packet. IPv6 packets cannot trigger this issue. This issue affects: Juniper Networks Junos OS on MX Series with MPC10E or MPC11E and PTX10001: 19.2 versions prior to 19.2R1-S4, 19.2R2; 19.3 versions prior to 19.3R2-S2, 19.3R3; 19.4 versions prior to 19.4R1-S1, 19.4R2. Juniper Networks Junos OS Evolved on on QFX5220, and PTX10003 series: 19.2-EVO versions; 19.3-EVO versions; 19.4-EVO versions prior to 19.4R2-EVO. This issue does not affect Junos OS versions prior to 19.2R1. This issue does not affect Junos OS Evolved versions prior to 19.2R1-EVO.
INFO
Published Date :
April 8, 2020, 8:15 p.m.
Last Modified :
Jan. 1, 2022, 5:32 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
3.9
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2020-1638.
| URL | Resource |
|---|---|
| https://kb.juniper.net/JSA11019 | Vendor Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2020-1638 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2020-1638 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Reanalysis by [email protected]
Jan. 01, 2022
Action Type Old Value New Value Removed CWE NIST CWE-20 Added CWE NIST NVD-CWE-noinfo -
CPE Deprecation Remap by [email protected]
Oct. 25, 2021
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:o:juniper:junos_evolved:19.4:r1:*:*:*:*:*:* OR *cpe:2.3:o:juniper:junos_os_evolved:19.4:r1:*:*:*:*:*:* -
CPE Deprecation Remap by [email protected]
Oct. 25, 2021
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:o:juniper:junos_evolved:19.2:r1:*:*:*:*:*:* OR *cpe:2.3:o:juniper:junos_os_evolved:19.2:r1:*:*:*:*:*:* -
CPE Deprecation Remap by [email protected]
Oct. 25, 2021
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:o:juniper:junos_evolved:19.3:r2:*:*:*:*:*:* OR *cpe:2.3:o:juniper:junos_os_evolved:19.3:r2:*:*:*:*:*:* -
Initial Analysis by [email protected]
Apr. 14, 2020
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:N/I:N/A:P) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Changed Reference Type https://kb.juniper.net/JSA11019 No Types Assigned https://kb.juniper.net/JSA11019 Vendor Advisory Added CWE NIST CWE-20 Added CPE Configuration AND OR *cpe:2.3:o:juniper:junos:19.2:-:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.2:r1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.2:r1-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.2:r1-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.2:r1-s3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.3:r1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.3:r1-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.3:r2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.3:r2-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.4:r1:*:*:*:*:*:* OR cpe:2.3:h:juniper:mx10003:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:mx2008:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:mx2010:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:mx2020:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:mx240:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:mx480:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:mx960:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:juniper:junos_evolved:19.2:r1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos_evolved:19.3:r2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos_evolved:19.4:r1:*:*:*:*:*:* OR cpe:2.3:h:juniper:ptx10003:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:qfx5220:-:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2020-1638 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2020-1638
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.10 }} 0.00%
score
0.40663
percentile