0.0
NA
CVE-2023-40457
Extreme Networks ExtremeXOS BGP Attribute Error Denial of Service
Description

The BGP daemon in Extreme Networks ExtremeXOS (aka EXOS) 30.7.1.1 allows an attacker (who is not on a directly connected network) to cause a denial of service (BGP session reset) because of BGP attribute error mishandling (for attribute 21 and 25). NOTE: the vendor disputes this because it is "evaluating support for RFC 7606 as a future feature" and believes that "customers that have chosen to not require or implement RFC 7606 have done so willingly and with knowledge of what is needed to defend against these types of attacks."

INFO

Published Date :

Nov. 11, 2024, 12:15 a.m.

Last Modified :

Nov. 12, 2024, 6:35 p.m.

Remotely Exploitable :

No

Impact Score :

Exploitability Score :

Affected Products

The following products are affected by CVE-2023-40457 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.

No affected product recoded yet

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-2023-40457.

URL Resource
https://blog.benjojo.co.uk/asset/JgH8G5duO1
https://blog.benjojo.co.uk/post/bgp-path-attributes-grave-error-handling
https://supportdocs.extremenetworks.com/support/documentation/extremexos-32-5/

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-2023-40457 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2023-40457 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 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Nov. 12, 2024

    Action Type Old Value New Value
    Added CWE CISA-ADP CWE-209
  • CVE Received by [email protected]

    Nov. 11, 2024

    Action Type Old Value New Value
    Added Description The BGP daemon in Extreme Networks ExtremeXOS (aka EXOS) 30.7.1.1 allows an attacker (who is not on a directly connected network) to cause a denial of service (BGP session reset) because of BGP attribute error mishandling (for attribute 21 and 25). NOTE: the vendor disputes this because it is "evaluating support for RFC 7606 as a future feature" and believes that "customers that have chosen to not require or implement RFC 7606 have done so willingly and with knowledge of what is needed to defend against these types of attacks."
    Added Reference MITRE https://supportdocs.extremenetworks.com/support/documentation/extremexos-32-5/ [No types assigned]
    Added Reference MITRE https://blog.benjojo.co.uk/post/bgp-path-attributes-grave-error-handling [No types assigned]
    Added Reference MITRE https://blog.benjojo.co.uk/asset/JgH8G5duO1 [No types assigned]
    Added Tag MITRE disputed
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-2023-40457 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-2023-40457 weaknesses.

NONE - Vulnerability Scoring System