CVE-2020-26569
Arista EOS EVPN VxLAN MAC Address to IP Binding Vulnerability
Description
In EVPN VxLAN setups in Arista EOS, specific malformed packets can lead to incorrect MAC to IP bindings and as a result packets can be incorrectly forwarded across VLAN boundaries. This can result in traffic being discarded on the receiving VLAN. This affects versions: 4.21.12M and below releases in the 4.21.x train; 4.22.7M and below releases in the 4.22.x train; 4.23.5M and below releases in the 4.23.x train; 4.24.2F and below releases in the 4.24.x train.
INFO
Published Date :
Dec. 28, 2020, 4:15 p.m.
Last Modified :
Jan. 27, 2021, 7:34 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
2.2
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-2020-26569.
| URL | Resource |
|---|---|
| https://www.arista.com/en/support/advisories-notices/security-advisories/11997-security-advisory-57 | 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-2020-26569 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2020-26569 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 -
Reanalysis by [email protected]
Jan. 27, 2021
Action Type Old Value New Value Removed CVSS V2 NIST (AV:N/AC:L/Au:N/C:N/I:N/A:P) Added CVSS V2 NIST (AV:N/AC:M/Au:N/C:N/I:N/A:P) Removed CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Added CVSS V3.1 NIST AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H -
Initial Analysis by [email protected]
Jan. 05, 2021
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://www.arista.com/en/support/advisories-notices/security-advisories/11997-security-advisory-57 No Types Assigned https://www.arista.com/en/support/advisories-notices/security-advisories/11997-security-advisory-57 Exploit, Vendor Advisory Added CWE NIST NVD-CWE-noinfo Added CPE Configuration AND OR *cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:* versions from (including) 4.21.0f up to (including) 4.21.12m *cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:* versions from (including) 4.22.0f up to (including) 4.22.7m *cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:* versions from (including) 4.23.0f up to (including) 4.23.5m *cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:* versions from (including) 4.24.0f up to (including) 4.24.2f OR cpe:2.3:h:arista:7010t-48:-:*:*:*:*:*:*:* cpe:2.3:h:arista:7050cx3-32s:-:*:*:*:*:*:*:* cpe:2.3:h:arista:7050cx3m-32s:-:*:*:*:*:*:*:* cpe:2.3:h:arista:7050qx-32s:-:*:*:*:*:*:*:* cpe:2.3:h:arista:7050qx2-32s:-:*:*:*:*:*:*:* cpe:2.3:h:arista:7050sx-128:-:*:*:*:*:*:*:* cpe:2.3:h:arista:7050sx-64:-:*:*:*:*:*:*:* cpe:2.3:h:arista:7050sx-72q:-:*:*:*:*:*:*:* cpe:2.3:h:arista:7050sx2-128:-:*:*:*:*:*:*:* cpe:2.3:h:arista:7050sx2-72q:-:*:*:*:*:*:*:* cpe:2.3:h:arista:7050sx3-48c8:-:*:*:*:*:*:*:* cpe:2.3:h:arista:7050sx3-48yc:-:*:*:*:*:*:*:* cpe:2.3:h:arista:7050sx3-48yc12:-:*:*:*:*:*:*:* cpe:2.3:h:arista:7050sx3-48yc8:-:*:*:*:*:*:*:* cpe:2.3:h:arista:7050sx3-96yc8:-:*:*:*:*:*:*:* cpe:2.3:h:arista:7050tx-48:-:*:*:*:*:*:*:* cpe:2.3:h:arista:7050tx-64:-:*:*:*:*:*:*:* cpe:2.3:h:arista:7050tx-72q:-:*:*:*:*:*:*:* cpe:2.3:h:arista:7050tx2-128:-:*:*:*:*:*:*:* cpe:2.3:h:arista:7050tx3-48c8:-:*:*:*:*:*:*:* cpe:2.3:h:arista:7060cx-32s:-:*:*:*:*:*:*:* cpe:2.3:h:arista:7060cx2-32s:-:*:*:*:*:*:*:* cpe:2.3:h:arista:7060dx4-32:-:*:*:*:*:*:*:* cpe:2.3:h:arista:7060px4-32:-:*:*:*:*:*:*:* cpe:2.3:h:arista:7060sx2-48yc6:-:*:*:*:*:*:*:* cpe:2.3:h:arista:720xp-24y6:-:*:*:*:*:*:*:* cpe:2.3:h:arista:720xp-24zy4:-:*:*:*:*:*:*:* cpe:2.3:h:arista:720xp-48y6:-:*:*:*:*:*:*:* cpe:2.3:h:arista:720xp-48zc2:-:*:*:*:*:*:*:* cpe:2.3:h:arista:720xp-96zc2:-:*:*:*:*:*:*:* cpe:2.3:h:arista:7250qx-64:-:*:*:*:*:*:*:* cpe:2.3:h:arista:7260cx:-:*:*:*:*:*:*:* cpe:2.3:h:arista:7260cx3:-:*:*:*:*:*:*:* cpe:2.3:h:arista:7260cx3-64:-:*:*:*:*:*:*:* cpe:2.3:h:arista:7260qx:-:*:*:*:*:*:*:* cpe:2.3:h:arista:7300x-32q:-:*:*:*:*:*:*:* cpe:2.3:h:arista:7300x-64s:-:*:*:*:*:*:*:* cpe:2.3:h:arista:7300x-64t:-:*:*:*:*:*:*:* cpe:2.3:h:arista:7300x3-32c:-:*:*:*:*:*:*:* cpe:2.3:h:arista:7300x3-48yc4:-:*:*:*:*:*:*:* cpe:2.3:h:arista:7304x3:-:*:*:*:*:*:*:* cpe:2.3:h:arista:7308x3:-:*:*:*:*:*:*:* cpe:2.3:h:arista:7320x-32c:-:*:*:*:*:*:*:* cpe:2.3:h:arista:7324x:-:*:*:*:*:*:*:* cpe:2.3:h:arista:7328x:-:*:*:*:*:*:*:* cpe:2.3:h:arista:7368x4:-:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2020-26569 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-2020-26569
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.12 }} 0.01%
score
0.45434
percentile