CVE-2024-33895
Cosy+ Devices Master Key Exposure
Description
Cosy+ devices running a firmware 21.x below 21.2s10 or a firmware 22.x below 22.1s3 use a unique key to encrypt the configuration parameters. This is fixed in version 21.2s10 and 22.1s3, the key is now unique per device.
INFO
Published Date :
Aug. 2, 2024, 6:16 p.m.
Last Modified :
Sept. 3, 2024, 7:02 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
5.9
Exploitability Score :
0.7
Affected Products
The following products are affected by CVE-2024-33895
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.
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-2024-33895.
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-2024-33895 vulnerability anywhere in the article.
-
seclists.org
Use of Hard-coded Cryptographic Key (CWE-321) CVE-2024-33895
Full Disclosure mailing list archives From: Moritz Abrell via Fulldisclosure <fulldisclosure () seclists org> Date: Sun, 11 Aug 2024 19:48:04 +0200 -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 Advi ... Read more
The following table lists the changes that have been made to the
CVE-2024-33895 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.
-
Initial Analysis by [email protected]
Sep. 03, 2024
Action Type Old Value New Value Added CVSS V3.1 NIST AV:P/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Changed Reference Type https://blog.syss.com/posts/hacking-a-secure-industrial-remote-access-gateway/ No Types Assigned https://blog.syss.com/posts/hacking-a-secure-industrial-remote-access-gateway/ Exploit, Third Party Advisory Changed Reference Type https://hmsnetworks.blob.core.windows.net/nlw/docs/default-source/products/cybersecurity/security-advisory/hms-security-advisory-2024-07-29-001--ewon-several-cosy--vulnerabilities.pdf No Types Assigned https://hmsnetworks.blob.core.windows.net/nlw/docs/default-source/products/cybersecurity/security-advisory/hms-security-advisory-2024-07-29-001--ewon-several-cosy--vulnerabilities.pdf Vendor Advisory Changed Reference Type https://www.ewon.biz/products/cosy/ewon-cosy-wifi No Types Assigned https://www.ewon.biz/products/cosy/ewon-cosy-wifi Product Changed Reference Type https://www.hms-networks.com/cyber-security No Types Assigned https://www.hms-networks.com/cyber-security Vendor Advisory Added CWE NIST CWE-798 Added CPE Configuration AND OR *cpe:2.3:o:hms-networks:ewon_cosy\+_firmware:*:*:*:*:*:*:*:* versions from (including) 21.0 up to (including) 21.2s10 *cpe:2.3:o:hms-networks:ewon_cosy\+_firmware:*:*:*:*:*:*:*:* versions from (including) 22.0 up to (including) 22.1s3 OR cpe:2.3:h:hms-networks:ewon_cosy\+_4g_apac:-:*:*:*:*:*:*:* cpe:2.3:h:hms-networks:ewon_cosy\+_4g_eu:-:*:*:*:*:*:*:* cpe:2.3:h:hms-networks:ewon_cosy\+_4g_jp:-:*:*:*:*:*:*:* cpe:2.3:h:hms-networks:ewon_cosy\+_4g_na:-:*:*:*:*:*:*:* cpe:2.3:h:hms-networks:ewon_cosy\+_ethernet:-:*:*:*:*:*:*:* cpe:2.3:h:hms-networks:ewon_cosy\+_wifi:-:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Aug. 12, 2024
Action Type Old Value New Value Added Reference MITRE https://blog.syss.com/posts/hacking-a-secure-industrial-remote-access-gateway/ [No types assigned] -
CVE Received by [email protected]
Aug. 02, 2024
Action Type Old Value New Value Added Description Cosy+ devices running a firmware 21.x below 21.2s10 or a firmware 22.x below 22.1s3 use a unique key to encrypt the configuration parameters. This is fixed in version 21.2s10 and 22.1s3, the key is now unique per device. Added Reference MITRE https://www.ewon.biz/products/cosy/ewon-cosy-wifi [No types assigned] Added Reference MITRE https://www.hms-networks.com/cyber-security [No types assigned] Added Reference MITRE https://hmsnetworks.blob.core.windows.net/nlw/docs/default-source/products/cybersecurity/security-advisory/hms-security-advisory-2024-07-29-001--ewon-several-cosy--vulnerabilities.pdf [No types assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2024-33895 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-2024-33895
weaknesses.