CVE-2021-28505
Arista EOS VXLAN Protocol IP Address Resolution Denial of Service
Description
On affected Arista EOS platforms, if a VXLAN match rule exists in an IPv4 access-list that is applied to the ingress of an L2 or an L3 port/SVI, the VXLAN rule and subsequent ACL rules in that access list will ignore the specified IP protocol.
INFO
Published Date :
April 14, 2022, 9:15 p.m.
Last Modified :
April 26, 2022, 5:09 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-2021-28505.
| URL | Resource |
|---|---|
| https://www.arista.com/en/support/advisories-notices/security-advisories/15267-security-advisory-0073 | Exploit 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-2021-28505 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-28505 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]
Apr. 26, 2022
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:N/I:P/A:N) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Changed Reference Type https://www.arista.com/en/support/advisories-notices/security-advisories/15267-security-advisory-0073 No Types Assigned https://www.arista.com/en/support/advisories-notices/security-advisories/15267-security-advisory-0073 Exploit, Vendor Advisory Added CWE NIST CWE-863 Added CPE Configuration AND OR *cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:* versions from (including) 4.26 up to (excluding) 4.26.4m *cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:* versions from (including) 4.27 up to (excluding) 4.27.1f OR cpe:2.3:h:arista:ccs-710p-12:-:*:*:*:*:*:*:* cpe:2.3:h:arista:ccs-710p-16p:-:*:*:*:*:*:*:* cpe:2.3:h:arista:ccs-720xp-24y6:-:*:*:*:*:*:*:* cpe:2.3:h:arista:ccs-720xp-24zy4:-:*:*:*:*:*:*:* cpe:2.3:h:arista:ccs-720xp-48y6:-:*:*:*:*:*:*:* cpe:2.3:h:arista:ccs-720xp-48zc2:-:*:*:*:*:*:*:* cpe:2.3:h:arista:ccs-720xp-96zc2:-:*:*:*:*:*:*:* cpe:2.3:h:arista:ccs-722xpm-48y4:-:*:*:*:*:*:*:* cpe:2.3:h:arista:ccs-722xpm-48zy8:-:*:*:*:*:*:*:* cpe:2.3:h:arista:dcs-7010tx-48:-:*:*:*:*:*:*:* cpe:2.3:h:arista:dcs-7050cx3-32s:-:*:*:*:*:*:*:* cpe:2.3:h:arista:dcs-7050cx3m-32s:-:*:*:*:*:*:*:* cpe:2.3:h:arista:dcs-7050sx3-48c8:-:*:*:*:*:*:*:* cpe:2.3:h:arista:dcs-7050sx3-48yc12:-:*:*:*:*:*:*:* cpe:2.3:h:arista:dcs-7050sx3-48yc8:-:*:*:*:*:*:*:* cpe:2.3:h:arista:dcs-7050sx3-96yc8:-:*:*:*:*:*:*:* cpe:2.3:h:arista:dcs-7050tx3-48c8:-:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-28505 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-2021-28505
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.09 }} 0.02%
score
0.40922
percentile