CVE-2021-0286
Juniper Networks Junos OS Evolved Denial of Service
Description
A vulnerability in the handling of exceptional conditions in Juniper Networks Junos OS Evolved (EVO) allows an attacker to send specially crafted packets to the device, causing the Advanced Forwarding Toolkit manager (evo-aftmand-bt or evo-aftmand-zx) process to crash and restart, impacting all traffic going through the FPC, resulting in a Denial of Service (DoS). Continued receipt and processing of these packets will create a sustained Denial of Service (DoS) condition. Following messages will be logged prior to the crash: Feb 2 10:14:39 fpc0 evo-aftmand-bt[16263]: [Error] Nexthop: Failed to get fwd nexthop for nexthop:32710470974358 label:1089551617 for session:18 probe:35 Feb 2 10:14:39 fpc0 evo-aftmand-bt[16263]: [Error] Nexthop: Failed to get fwd nexthop for nexthop:19241453497049 label:1089551617 for session:18 probe:37 Feb 2 10:14:39 fpc0 evo-aftmand-bt[16263]: [Error] Nexthop: Failed to get fwd nexthop for nexthop:19241453497049 label:1089551617 for session:18 probe:44 Feb 2 10:14:39 fpc0 evo-aftmand-bt[16263]: [Error] Nexthop: Failed to get fwd nexthop for nexthop:32710470974358 label:1089551617 for session:18 probe:47 Feb 2 10:14:39 fpc0 audit[16263]: ANOM_ABEND auid=4294967295 uid=0 gid=0 ses=4294967295 pid=16263 comm="EvoAftManBt-mai" exe="/usr/sbin/evo-aftmand-bt" sig=11 Feb 2 10:14:39 fpc0 kernel: audit: type=1701 audit(1612260879.272:17): auid=4294967295 uid=0 gid=0 ses=4294967295 pid=16263 comm="EvoAftManBt-mai" exe="/usr/sbin/evo-aftmand-bt" sig=1 This issue affects Juniper Networks Junos OS Evolved: All versions prior to 20.4R2-EVO; 21.1 versions prior to 21.1R2-EVO.
INFO
Published Date :
July 15, 2021, 8:15 p.m.
Last Modified :
Oct. 25, 2021, 3:20 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-2021-0286.
| URL | Resource |
|---|---|
| https://kb.juniper.net/JSA11188 | 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-2021-0286 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-0286 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 -
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:*:*:*:*:*:* -
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:20.4:r1:*:*:*:*:*:* OR *cpe:2.3:o:juniper:junos_os_evolved:20.4: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:20.3:r1:*:*:*:*:*:* OR *cpe:2.3:o:juniper:junos_os_evolved:20.3: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:21.1:r1:*:*:*:*:*:* OR *cpe:2.3:o:juniper:junos_os_evolved:21.1: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:20.1:r1:*:*:*:*:*:* OR *cpe:2.3:o:juniper:junos_os_evolved:20.1: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:20.1:r1-s1:*:*:*:*:*:* OR *cpe:2.3:o:juniper:junos_os_evolved:20.1:r1-s1:*:*:*:*:*:* -
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:r1:*:*:*:*:*:* OR *cpe:2.3:o:juniper:junos_os_evolved:19.3: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:r2:*:*:*:*:*:* OR *cpe:2.3:o:juniper:junos_os_evolved:19.2:r2:*:*:*:*:*:* -
CPE Deprecation Remap by [email protected]
Oct. 23, 2021
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:o:juniper:junos_evolved:19.4:r2:*:*:*:*:*:* OR *cpe:2.3:o:juniper:junos_os_evolved:19.4:r2:*:*:*:*:*:* -
CPE Deprecation Remap by [email protected]
Oct. 23, 2021
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:o:juniper:junos_evolved:20.3:-:*:*:*:*:*:* OR *cpe:2.3:o:juniper:junos_os_evolved:20.3:-:*:*:*:*:*:* -
CPE Deprecation Remap by [email protected]
Oct. 23, 2021
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:o:juniper:junos_evolved:20.2:-:*:*:*:*:*:* OR *cpe:2.3:o:juniper:junos_os_evolved:20.2:-:*:*:*:*:*:* -
CPE Deprecation Remap by [email protected]
Oct. 23, 2021
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:o:juniper:junos_evolved:20.1:-:*:*:*:*:*:* OR *cpe:2.3:o:juniper:junos_os_evolved:20.1:-:*:*:*:*:*:* -
CPE Deprecation Remap by [email protected]
Oct. 23, 2021
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:o:juniper:junos_evolved:19.4:r2-s1:*:*:*:*:*:* OR *cpe:2.3:o:juniper:junos_os_evolved:19.4:r2-s1:*:*:*:*:*:* -
Initial Analysis by [email protected]
Jul. 28, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:N/I:N/A:C) Changed Reference Type https://kb.juniper.net/JSA11188 No Types Assigned https://kb.juniper.net/JSA11188 Vendor Advisory Added CWE NIST CWE-754 Added CPE Configuration OR *cpe:2.3:o:juniper:junos_evolved:19.2:r1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos_evolved:19.2:r2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos_evolved:19.3:r1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos_evolved:19.3:r2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos_evolved:19.4:r1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos_evolved:19.4:r2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos_evolved:19.4:r2-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos_evolved:20.1:-:*:*:*:*:*:* *cpe:2.3:o:juniper:junos_evolved:20.1:r1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos_evolved:20.1:r1-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos_evolved:20.2:-:*:*:*:*:*:* *cpe:2.3:o:juniper:junos_evolved:20.3:-:*:*:*:*:*:* *cpe:2.3:o:juniper:junos_evolved:20.3:r1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos_evolved:20.4:r1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos_evolved:21.1:r1:*:*:*:*:*:* -
CVE Modified by [email protected]
Jul. 15, 2021
Action Type Old Value New Value Changed Description A vulnerability in the handling of exceptional conditions in Juniper Networks Junos OS Evolved (EVO) allows an attacker to send specially crafted packets to the device, causing the Advanced Forwarding Toolkit manager (evo-aftmand-bt or evo-aftmand-zx) process to crash and restart, impacting all traffic going through the FPC, resulting in a Denial of Service (DoS). Continued receipt and processing of these packets will create a sustained Denial of Service (DoS) condition. Following messages will be logged prior to the crash: Feb 2 10:14:39 fpc0 evo-aftmand-bt[16263]: [Error] Nexthop: Failed to get fwd nexthop for nexthop:32710470974358 label:1089551617 for session:18 probe:35 Feb 2 10:14:39 fpc0 evo-aftmand-bt[16263]: [Error] Nexthop: Failed to get fwd nexthop for nexthop:19241453497049 label:1089551617 for session:18 probe:37 Feb 2 10:14:39 fpc0 evo-aftmand-bt[16263]: [Error] Nexthop: Failed to get fwd nexthop for nexthop:19241453497049 label:1089551617 for session:18 probe:44 Feb 2 10:14:39 fpc0 evo-aftmand-bt[16263]: [Error] Nexthop: Failed to get fwd nexthop for nexthop:32710470974358 label:1089551617 for session:18 probe:47 Feb 2 10:14:39 fpc0 audit[16263]: ANOM_ABEND auid=4294967295 uid=0 gid=0 ses=4294967295 pid=16263 comm="EvoAftManBt-mai" exe="/usr/sbin/evo-aftmand-bt" sig=11 Feb 2 10:14:39 fpc0 kernel: audit: type=1701 audit(1612260879.272:17): auid=4294967295 uid=0 gid=0 ses=4294967295 pid=16263 comm="EvoAftManBt-mai" exe="/usr/sbin/evo-aftmand-bt" sig=1 This issue affects Juniper Networks Junos OS Evolved: All versions prior to 20.4R2-EVO; 21.1 versions prior to 21.1R2-EVO. A vulnerability in the handling of exceptional conditions in Juniper Networks Junos OS Evolved (EVO) allows an attacker to send specially crafted packets to the device, causing the Advanced Forwarding Toolkit manager (evo-aftmand-bt or evo-aftmand-zx) process to crash and restart, impacting all traffic going through the FPC, resulting in a Denial of Service (DoS). Continued receipt and processing of these packets will create a sustained Denial of Service (DoS) condition. Following messages will be logged prior to the crash: Feb 2 10:14:39 fpc0 evo-aftmand-bt[16263]: [Error] Nexthop: Failed to get fwd nexthop for nexthop:32710470974358 label:1089551617 for session:18 probe:35 Feb 2 10:14:39 fpc0 evo-aftmand-bt[16263]: [Error] Nexthop: Failed to get fwd nexthop for nexthop:19241453497049 label:1089551617 for session:18 probe:37 Feb 2 10:14:39 fpc0 evo-aftmand-bt[16263]: [Error] Nexthop: Failed to get fwd nexthop for nexthop:19241453497049 label:1089551617 for session:18 probe:44 Feb 2 10:14:39 fpc0 evo-aftmand-bt[16263]: [Error] Nexthop: Failed to get fwd nexthop for nexthop:32710470974358 label:1089551617 for session:18 probe:47 Feb 2 10:14:39 fpc0 audit[16263]: ANOM_ABEND auid=4294967295 uid=0 gid=0 ses=4294967295 pid=16263 comm="EvoAftManBt-mai" exe="/usr/sbin/evo-aftmand-bt" sig=11 Feb 2 10:14:39 fpc0 kernel: audit: type=1701 audit(1612260879.272:17): auid=4294967295 uid=0 gid=0 ses=4294967295 pid=16263 comm="EvoAftManBt-mai" exe="/usr/sbin/evo-aftmand-bt" sig=1 This issue affects Juniper Networks Junos OS Evolved: All versions prior to 20.4R2-EVO; 21.1 versions prior to 21.1R2-EVO.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-0286 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-2021-0286
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.10 }} 0.01%
score
0.41300
percentile