CVE-2021-37915
Grandstream HT801 Analog Telephone Adaptor Remote Code Execution Vulnerability
Description
An issue was discovered on the Grandstream HT801 Analog Telephone Adaptor before 1.0.29.8. From the limited configuration shell, it is possible to set the malicious gdb_debug_server variable. As a result, after a reboot, the device downloads and executes malicious scripts from an attacker-defined host.
INFO
Published Date :
Oct. 28, 2021, 12:15 p.m.
Last Modified :
Nov. 2, 2021, 2:50 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.9
Exploitability Score :
2.8
Public PoC/Exploit Available at Github
CVE-2021-37915 has a 1 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
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-2021-37915.
| URL | Resource |
|---|---|
| http://firmware.grandstream.com/BETA/Release_Note_HT80x_1.0.29.8.pdf | Broken Link |
| http://www.grandstream.com/products/gateways-and-atas/analog-telephone-adaptors/product/ht801 | Product Vendor Advisory |
| https://www.secforce.com/blog/exploiting-grandstream-ht801-ata-cve-2021-37748-cve-2021-37915/ | 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
Python
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-37915 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-37915 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]
Nov. 02, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:S/C:C/I:C/A:C) Added CVSS V3.1 NIST AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Changed Reference Type http://firmware.grandstream.com/BETA/Release_Note_HT80x_1.0.29.8.pdf No Types Assigned http://firmware.grandstream.com/BETA/Release_Note_HT80x_1.0.29.8.pdf Broken Link Changed Reference Type http://www.grandstream.com/products/gateways-and-atas/analog-telephone-adaptors/product/ht801 No Types Assigned http://www.grandstream.com/products/gateways-and-atas/analog-telephone-adaptors/product/ht801 Product, Vendor Advisory Changed Reference Type https://www.secforce.com/blog/exploiting-grandstream-ht801-ata-cve-2021-37748-cve-2021-37915/ No Types Assigned https://www.secforce.com/blog/exploiting-grandstream-ht801-ata-cve-2021-37748-cve-2021-37915/ Exploit, Third Party Advisory Added CWE NIST NVD-CWE-noinfo Added CPE Configuration AND OR *cpe:2.3:o:grandstream:ht801_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.0.29.8 OR cpe:2.3:h:grandstream:ht801:-:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-37915 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-2021-37915
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.38 }} 0.11%
score
0.73295
percentile