CVE-2021-0292
Juniper Networks Junos OS Evolved ARP Daemon and Network Discovery Protocol Uncontrolled Resource Consumption Denial of Service
Description
An Uncontrolled Resource Consumption vulnerability in the ARP daemon (arpd) and Network Discovery Protocol (ndp) process of Juniper Networks Junos OS Evolved allows a malicious attacker on the local network to consume memory resources, ultimately resulting in a Denial of Service (DoS) condition. Link-layer functions such as IPv4 and/or IPv6 address resolution may be impacted, leading to traffic loss. The processes do not recover on their own and must be manually restarted. Changes in memory usage can be monitored using the following shell commands (header shown for clarity): user@router:/var/log# ps aux | grep arpd USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND root 31418 59.0 0.7 *5702564* 247952 ? xxx /usr/sbin/arpd --app-name arpd -I object_select --shared-objects-mode 3 user@router:/var/log# ps aux | grep arpd USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND root 31418 49.1 1.0 *5813156* 351184 ? xxx /usr/sbin/arpd --app-name arpd -I object_select --shared-objects-mode 3 Memory usage can be monitored for the ndp process in a similar fashion: user@router:/var/log# ps aux | grep ndp USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND root 14935 0.0 0.1 *5614052* 27256 ? Ssl Jun15 0:17 /usr/sbin/ndp -I no_tab_chk,object_select --app-name ndp --shared-obje user@router:/var/log# ps aux | grep ndp USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND root 14935 0.0 0.1 *5725164* 27256 ? Ssl Jun15 0:17 /usr/sbin/ndp -I no_tab_chk,object_select --app-name ndp --shared-obje This issue affects Juniper Networks Junos OS Evolved: 19.4 versions prior to 19.4R2-S3-EVO; 20.1 versions prior to 20.1R2-S4-EVO; all versions of 20.2-EVO. This issue does not affect Juniper Networks Junos OS Evolved versions prior to 19.4R2-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 :
No
Impact Score :
3.6
Exploitability Score :
2.8
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-2021-0292
.
URL | Resource |
---|---|
https://kb.juniper.net/JSA11194 | 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-2021-0292
vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-0292
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:20.1:r2:*:*:*:*:*:* OR *cpe:2.3:o:juniper:junos_os_evolved:20.1: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:20.1:r2-s1:*:*:*:*:*:* OR *cpe:2.3:o:juniper:junos_os_evolved:20.1:r2-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:20.1:r2-s2:*:*:*:*:*:* OR *cpe:2.3:o:juniper:junos_os_evolved:20.1:r2-s2:*:*:*:*:*:* -
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. 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:19.4:r2-s2:*:*:*:*:*:* OR *cpe:2.3:o:juniper:junos_os_evolved:19.4:r2-s2:*:*:*:*:*:* -
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:r2-s3:*:*:*:*:*:* OR *cpe:2.3:o:juniper:junos_os_evolved:20.1:r2-s3:*:*:*:*:*:* -
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. 29, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:A/AC:L/Au:N/C:N/I:N/A:P) Added CVSS V3.1 NIST AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Changed Reference Type https://kb.juniper.net/JSA11194 No Types Assigned https://kb.juniper.net/JSA11194 Vendor Advisory Added CWE NIST CWE-400 Added CPE Configuration OR *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:19.4:r2-s2:*:*:*:*:*:* *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:20.1:r2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos_evolved:20.1:r2-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos_evolved:20.1:r2-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos_evolved:20.1:r2-s3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos_evolved:20.2:-:*:*:*:*:*:* -
CVE Modified by [email protected]
Jul. 15, 2021
Action Type Old Value New Value Changed Description An Uncontrolled Resource Consumption vulnerability in the ARP daemon (arpd) and Network Discovery Protocol (ndp) process of Juniper Networks Junos OS Evolved allows a malicious attacker on the local network to consume memory resources, ultimately resulting in a Denial of Service (DoS) condition. Link-layer functions such as IPv4 and/or IPv6 address resolution may be impacted, leading to traffic loss. The processes do not recover on their own and must be manually restarted. Changes in memory usage can be monitored using the following shell commands (header shown for clarity): user@router:/var/log# ps aux | grep arpd USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND root 31418 59.0 0.7 *5702564* 247952 ? xxx /usr/sbin/arpd --app-name arpd -I object_select --shared-objects-mode 3 user@router:/var/log# ps aux | grep arpd USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND root 31418 49.1 1.0 *5813156* 351184 ? xxx /usr/sbin/arpd --app-name arpd -I object_select --shared-objects-mode 3 Memory usage can be monitored for the ndp process in a similar fashion: user@router:/var/log# ps aux | grep ndp USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND root 14935 0.0 0.1 *5614052* 27256 ? Ssl Jun15 0:17 /usr/sbin/ndp -I no_tab_chk,object_select --app-name ndp --shared-obje user@router:/var/log# ps aux | grep ndp USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND root 14935 0.0 0.1 *5725164* 27256 ? Ssl Jun15 0:17 /usr/sbin/ndp -I no_tab_chk,object_select --app-name ndp --shared-obje This issue affects Juniper Networks Junos OS Evolved: 19.4 versions prior to 19.4R2-S3-EVO; 20.1 versions prior to 20.1R2-S4-EVO; all versions of 20.2-EVO. This issue does not affect Juniper Networks Junos OS Evolved versions prior to 19.4R2-EVO. An Uncontrolled Resource Consumption vulnerability in the ARP daemon (arpd) and Network Discovery Protocol (ndp) process of Juniper Networks Junos OS Evolved allows a malicious attacker on the local network to consume memory resources, ultimately resulting in a Denial of Service (DoS) condition. Link-layer functions such as IPv4 and/or IPv6 address resolution may be impacted, leading to traffic loss. The processes do not recover on their own and must be manually restarted. Changes in memory usage can be monitored using the following shell commands (header shown for clarity): user@router:/var/log# ps aux | grep arpd USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND root 31418 59.0 0.7 *5702564* 247952 ? xxx /usr/sbin/arpd --app-name arpd -I object_select --shared-objects-mode 3 user@router:/var/log# ps aux | grep arpd USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND root 31418 49.1 1.0 *5813156* 351184 ? xxx /usr/sbin/arpd --app-name arpd -I object_select --shared-objects-mode 3 Memory usage can be monitored for the ndp process in a similar fashion: user@router:/var/log# ps aux | grep ndp USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND root 14935 0.0 0.1 *5614052* 27256 ? Ssl Jun15 0:17 /usr/sbin/ndp -I no_tab_chk,object_select --app-name ndp --shared-obje user@router:/var/log# ps aux | grep ndp USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND root 14935 0.0 0.1 *5725164* 27256 ? Ssl Jun15 0:17 /usr/sbin/ndp -I no_tab_chk,object_select --app-name ndp --shared-obje This issue affects Juniper Networks Junos OS Evolved: 19.4 versions prior to 19.4R2-S3-EVO; 20.1 versions prior to 20.1R2-S4-EVO; all versions of 20.2-EVO. This issue does not affect Juniper Networks Junos OS Evolved versions prior to 19.4R2-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-2021-0292
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-2021-0292
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