6.5
MEDIUM
CVE-2021-0289
Juniper Junos OS ARP Policer TOCTOU Race Condition
Description

When user-defined ARP Policer is configured and applied on one or more Aggregated Ethernet (AE) interface units, a Time-of-check Time-of-use (TOCTOU) Race Condition vulnerability between the Device Control Daemon (DCD) and firewall process (dfwd) daemons of Juniper Networks Junos OS allows an attacker to bypass the user-defined ARP Policer. In this particular case the User ARP policer is replaced with default ARP policer. To review the desired ARP Policers and actual state one can run the command "show interfaces <> extensive" and review the output. See further details below. An example output is: show interfaces extensive | match policer Policer: Input: __default_arp_policer__ <<< incorrect if user ARP Policer was applied on an AE interface and the default ARP Policer is displayed Policer: Input: jtac-arp-ae5.317-inet-arp <<< correct if user ARP Policer was applied on an AE interface For all platforms, except SRX Series: This issue affects Juniper Networks Junos OS: All versions 5.6R1 and all later versions prior to 18.4 versions prior to 18.4R2-S9, 18.4R3-S9 with the exception of 15.1 versions 15.1R7-S10 and later versions; 19.4 versions prior to 19.4R3-S3; 20.1 versions prior to 20.1R3; 20.2 versions prior to 20.2R3-S2; 20.3 version 20.3R1 and later versions; 20.4 versions prior to 20.4R3; 21.1 versions prior to 21.1R2; This issue does not affect Juniper Networks Junos OS versions prior to 5.6R1. On SRX Series this issue affects Juniper Networks Junos OS: 18.4 versions prior to 18.4R2-S9, 18.4R3-S9; 19.4 versions prior to 19.4R3-S4; 20.1 versions prior to 20.1R3; 20.2 versions prior to 20.2R3-S2; 20.3 version 20.3R1 and later versions; 20.4 versions prior to 20.4R3; 21.1 versions prior to 21.1R2. This issue does not affect 18.4 versions prior to 18.4R1 on SRX Series. This issue does not affect Junos OS Evolved.

INFO

Published Date :

July 15, 2021, 8:15 p.m.

Last Modified :

July 28, 2021, 4:59 p.m.

Remotely Exploitable :

No

Impact Score :

3.6

Exploitability Score :

2.8
Affected Products

The following products are affected by CVE-2021-0289 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Juniper junos
2 Juniper junos_os_evolved
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-2021-0289.

URL Resource
https://kb.juniper.net/JSA11191 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-2021-0289 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-0289 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.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Initial Analysis by [email protected]

    Jul. 28, 2021

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:A/AC:M/Au:N/C:N/I:N/A:P)
    Added CVSS V3.1 NIST AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
    Changed Reference Type https://kb.juniper.net/JSA11191 No Types Assigned https://kb.juniper.net/JSA11191 Vendor Advisory
    Added CWE NIST CWE-367
    Added CPE Configuration AND OR *cpe:2.3:o:juniper:junos:5.6:r1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:*:*:*:*:*:*:*:* versions from (including) 5.7 up to (excluding) 15.1 *cpe:2.3:o:juniper:junos:*:*:*:*:*:*:*:* versions from (including) 15.2 up to (excluding) 18.4 *cpe:2.3:o:juniper:junos:18.4:-:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r1-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r1-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r1-s3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r1-s4:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r1-s5:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r1-s6:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r1-s7:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r2-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r2-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r2-s3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r2-s4:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r2-s5:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r2-s6:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r2-s7:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r2-s8:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r3-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r3-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r3-s3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r3-s4:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r3-s5:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r3-s6:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r3-s7:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r3-s8:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.4:r1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.4:r1-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.4:r1-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.4:r1-s3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.4:r2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.4:r2-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.4:r2-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.4:r2-s3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.4:r3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.4:r3-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.4:r3-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:20.1:r1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:20.1:r1-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:20.1:r1-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:20.1:r1-s3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:20.1:r1-s4:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:20.1:r2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:20.1:r2-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:20.2:r1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:20.2:r1-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:20.2:r1-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:20.2:r1-s3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:20.2:r2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:20.2:r2-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:20.2:r2-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:20.2:r2-s3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:20.2:r3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:20.2:r3-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:20.4:r1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:20.4:r1-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:20.4:r2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:20.4:r2-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:21.1:r1:*:*:*:*:*:* OR cpe:2.3:h:juniper:acx1000:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:acx1100:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:acx2000:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:acx2100:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:acx2200:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:acx4000:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:acx500:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:acx5000:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:acx5048:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:acx5096:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:acx5400:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:acx5448:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:acx5800:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:acx6300:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:acx6360:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:acx710:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:atp400:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:atp700:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:csrx:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ctp150:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ctp2008:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ctp2024:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ctp2056:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:dx:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:dx:5.1:*:*:*:*:*:*:* cpe:2.3:h:juniper:ex2200:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ex2200-c:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ex2200-vc:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ex2300:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ex2300-c:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ex2300m:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ex3200:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ex3300:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ex3300-vc:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ex3400:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ex4200:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ex4200-vc:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ex4300:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ex4300-24p:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ex4300-24p-s:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ex4300-24t:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ex4300-24t-s:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ex4300-32f:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ex4300-32f-dc:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ex4300-32f-s:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ex4300-48mp:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ex4300-48mp-s:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ex4300-48p:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ex4300-48p-s:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ex4300-48t:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ex4300-48t-afi:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ex4300-48t-dc:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ex4300-48t-dc-afi:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ex4300-48t-s:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ex4300-48tafi:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ex4300-48tdc:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ex4300-48tdc-afi:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ex4300-mp:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ex4300-vc:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ex4300m:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ex4400:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ex4500:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ex4500-vc:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ex4550:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ex4550-vc:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ex4550\/vc:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ex4600:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ex4600-vc:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ex4650:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ex6200:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ex6210:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ex8200:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ex8200-vc:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ex8208:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ex8216:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ex9200:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ex9204:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ex9208:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ex9214:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ex9250:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ex9251:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ex9253:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ex_rps:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:fips_infranet_controller_6500:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:fips_secure_access_4000:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:fips_secure_access_4500:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:fips_secure_access_6000:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:fips_secure_access_6500:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:gfx3600:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:idp250:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:idp75:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:idp800:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:idp8200:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:infranet_controller_4000:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:infranet_controller_4500:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:infranet_controller_6000:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:infranet_controller_6500:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:jatp:400:*:*:*:*:*:*:* cpe:2.3:h:juniper:jatp:700:*:*:*:*:*:*:* cpe:2.3:h:juniper:junos:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:junos_space_ja1500_appliance:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:junos_space_ja2500_appliance:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ln1000:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ln2600:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:m10i:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:m120:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:m320:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:m7i:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:mag2600_gateway:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:mag4610_gateway:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:mag6610_gateway:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:mag6611_gateway:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:mx:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:mx10:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:mx10000:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:mx10003:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:mx10008:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:mx10016:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:mx104:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:mx150:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:mx2008:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:mx2010:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:mx2020:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:mx204:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:mx240:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:mx40:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:mx480:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:mx5:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:mx80:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:mx960:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:netscreen-5200:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:netscreen-5400:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:netscreen-5gt:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:netscreen-5gt:5.0:*:*:*:*:*:*:* cpe:2.3:h:juniper:netscreen-idp:3.0:*:*:*:*:*:*:* cpe:2.3:h:juniper:netscreen-idp:3.0r1:*:*:*:*:*:*:* cpe:2.3:h:juniper:netscreen-idp:3.0r2:*:*:*:*:*:*:* cpe:2.3:h:juniper:netscreen-idp_10:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:netscreen-idp_100:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:netscreen-idp_1000:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:netscreen-idp_500:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:nfx:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:nfx150:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:nfx250:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:nfx350:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:nsm3000:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:nsmexpress:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ocx1100:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ptx1000:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ptx1000-72q:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ptx10000:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ptx10001:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ptx10001-36mr:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ptx100016:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ptx10002:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ptx10002-60c:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ptx10003:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ptx10003_160c:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ptx10003_80c:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ptx10003_81cd:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ptx10004:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ptx10008:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ptx10016:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ptx3000:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ptx5000:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:qfx10000:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:qfx10002:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:qfx10002-32q:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:qfx10002-60c:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:qfx10002-72q:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:qfx10008:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:qfx10016:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:qfx3000-g:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:qfx3000-m:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:qfx3008-i:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:qfx3100:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:qfx3500:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:qfx3600:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:qfx3600-i:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:qfx5100:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:qfx5100-96s:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:qfx5110:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:qfx5120:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:qfx5130:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:qfx5200:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:qfx5200-32c:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:qfx5200-48y:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:qfx5210:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:qfx5210-64c:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:qfx5220:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:router_m10:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:router_m16:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:router_m20:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:router_m40:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:router_m5:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:secure_access_2000:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:secure_access_2500:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:secure_access_4000:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:secure_access_4500:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:secure_access_6000:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:secure_access_6500:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:secure_access_700:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:t1600:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:t320:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:t4000:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:t640:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:xre200:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:juniper:junos:18.4:-:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r1-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r1-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r1-s3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r1-s4:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r1-s5:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r1-s6:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r1-s7:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r2-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r2-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r2-s3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r2-s4:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r2-s5:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r2-s6:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r2-s7:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r2-s8:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r3-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r3-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r3-s3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r3-s4:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r3-s5:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r3-s6:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r3-s7:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r3-s8:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.4:r1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.4:r1-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.4:r1-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.4:r1-s3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.4:r2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.4:r2-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.4:r2-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.4:r2-s3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.4:r3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.4:r3-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.4:r3-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.4:r3-s3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:20.1:r1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:20.1:r1-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:20.1:r1-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:20.1:r1-s3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:20.1:r1-s4:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:20.1:r2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:20.1:r2-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:20.2:r1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:20.2:r1-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:20.2:r1-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:20.2:r1-s3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:20.2:r2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:20.2:r2-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:20.2:r2-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:20.2:r2-s3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:20.2:r3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:20.2:r3-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:20.3:r1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:20.3:r1-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:20.3:r2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:20.4:r1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:20.4:r1-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:21.1:r1-s1:*:*:*:*:*:* OR cpe:2.3:h:juniper:srx100:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:srx110:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:srx1400:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:srx1500:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:srx210:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:srx220:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:srx240:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:srx240h2:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:srx300:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:srx320:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:srx340:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:srx3400:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:srx345:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:srx3600:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:srx380:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:srx4000:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:srx4100:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:srx4200:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:srx4600:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:srx5000:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:srx5400:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:srx550:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:srx550_hm:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:srx550m:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:srx5600:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:srx5800:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:srx650:-:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Jul. 15, 2021

    Action Type Old Value New Value
    Changed Description When user-defined ARP Policer is configured and applied on one or more Aggregated Ethernet (AE) interface units, a Time-of-check Time-of-use (TOCTOU) Race Condition vulnerability between the Device Control Daemon (DCD) and firewall process (dfwd) daemons of Juniper Networks Junos OS allows an attacker to bypass the user-defined ARP Policer. In this particular case the User ARP policer is replaced with default ARP policer. To review the desired ARP Policers and actual state one can run the command "show interfaces <> extensive" and review the output. See further details below. An example output is: show interfaces extensive | match policer Policer: Input: __default_arp_policer__ <<< incorrect if user ARP Policer was applied on an AE interface and the default ARP Policer is displayed Policer: Input: jtac-arp-ae5.317-inet-arp <<< correct if user ARP Policer was applied on an AE interface For all platforms, except SRX Series: This issue affects Juniper Networks Junos OS: All versions 5.6R1 and all later versions prior to 18.4 versions prior to 18.4R2-S9, 18.4R3-S9 with the exception of 15.1 versions 15.1R7-S10 and later versions; 19.4 versions prior to 19.4R3-S3; 20.1 versions prior to 20.1R3; 20.2 versions prior to 20.2R3-S2; 20.3 version 20.3R1 and later versions; 20.4 versions prior to 20.4R3; 21.1 versions prior to 21.1R2; This issue does not affect Juniper Networks Junos OS versions prior to 5.6R1. On SRX Series this issue affects Juniper Networks Junos OS: 18.4 versions prior to 18.4R2-S9, 18.4R3-S9; 19.4 versions prior to 19.4R3-S4; 20.1 versions prior to 20.1R3; 20.2 versions prior to 20.2R3-S2; 20.3 version 20.3R1 and later versions; 20.4 versions prior to 20.4R3; 21.1 versions prior to 21.1R2. This issue does not affect 18.4 versions prior to 18.4R1 on SRX Series. This issue does not affect Junos OS Evolved. When user-defined ARP Policer is configured and applied on one or more Aggregated Ethernet (AE) interface units, a Time-of-check Time-of-use (TOCTOU) Race Condition vulnerability between the Device Control Daemon (DCD) and firewall process (dfwd) daemons of Juniper Networks Junos OS allows an attacker to bypass the user-defined ARP Policer. In this particular case the User ARP policer is replaced with default ARP policer. To review the desired ARP Policers and actual state one can run the command "show interfaces <> extensive" and review the output. See further details below. An example output is: show interfaces extensive | match policer Policer: Input: __default_arp_policer__ <<< incorrect if user ARP Policer was applied on an AE interface and the default ARP Policer is displayed Policer: Input: jtac-arp-ae5.317-inet-arp <<< correct if user ARP Policer was applied on an AE interface For all platforms, except SRX Series: This issue affects Juniper Networks Junos OS: All versions 5.6R1 and all later versions prior to 18.4 versions prior to 18.4R2-S9, 18.4R3-S9 with the exception of 15.1 versions 15.1R7-S10 and later versions; 19.4 versions prior to 19.4R3-S3; 20.1 versions prior to 20.1R3; 20.2 versions prior to 20.2R3-S2; 20.3 version 20.3R1 and later versions; 20.4 versions prior to 20.4R3; 21.1 versions prior to 21.1R2; This issue does not affect Juniper Networks Junos OS versions prior to 5.6R1. On SRX Series this issue affects Juniper Networks Junos OS: 18.4 versions prior to 18.4R2-S9, 18.4R3-S9; 19.4 versions prior to 19.4R3-S4; 20.1 versions prior to 20.1R3; 20.2 versions prior to 20.2R3-S2; 20.3 version 20.3R1 and later versions; 20.4 versions prior to 20.4R3; 21.1 versions prior to 21.1R2. This issue does not affect 18.4 versions prior to 18.4R1 on SRX Series. This issue does not affect Junos OS Evolved.
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2021-0289 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-2021-0289 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.06 }} 0.01%

score

0.23101

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability