CVE-2020-8809
Gurux GXDLMS Director HTTP Man-in-the-Middle Remote Code Execution
Description
Gurux GXDLMS Director prior to 8.5.1905.1301 downloads updates to add-ins and OBIS code over an unencrypted HTTP connection. A man-in-the-middle attacker can prompt the user to download updates by modifying the contents of gurux.fi/obis/files.xml and gurux.fi/updates/updates.xml. Then, the attacker can modify the contents of downloaded files. In the case of add-ins (if the user is using those), this will lead to code execution. In case of OBIS codes (which the user is always using as they are needed to communicate with the energy meters), this can lead to code execution when combined with CVE-2020-8810.
INFO
Published Date :
Feb. 25, 2020, 7:15 p.m.
Last Modified :
Feb. 27, 2020, 7:12 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.9
Exploitability Score :
2.2
Public PoC/Exploit Available at Github
CVE-2020-8809 has a 4 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
Affected Products
The following products are affected by CVE-2020-8809
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-2020-8809.
| URL | Resource |
|---|---|
| https://github.com/seqred-s-a/gxdlmsdirector-cve | Exploit Third Party Advisory |
| https://seqred.pl/en/cve-gurux-gxdlms-director/ | Exploit Third Party 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).
None
None
None
CVE-2020-8809 and CVE-2020-8810
security cve advisory dlms cosem ami
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2020-8809 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2020-8809 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]
Feb. 27, 2020
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:M/Au:N/C:P/I:P/A:P) Added CVSS V3.1 NIST AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://github.com/seqred-s-a/gxdlmsdirector-cve No Types Assigned https://github.com/seqred-s-a/gxdlmsdirector-cve Exploit, Third Party Advisory Changed Reference Type https://seqred.pl/en/cve-gurux-gxdlms-director/ No Types Assigned https://seqred.pl/en/cve-gurux-gxdlms-director/ Exploit, Third Party Advisory Added CWE NIST CWE-494 Added CPE Configuration OR *cpe:2.3:a:gurux:device_language_message_specification_director:*:*:*:*:*:*:*:* versions up to (excluding) 8.5.1905.1301
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2020-8809 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-2020-8809
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.34 }} -0.14%
score
0.71314
percentile