CVE-2021-37748
Grandstream HT801 Buffer Overflow Root Escalation
Description
Multiple buffer overflows in the limited configuration shell (/sbin/gs_config) on Grandstream HT801 devices before 1.0.29 allow remote authenticated users to execute arbitrary code as root via a crafted manage_if setting, thus bypassing the intended restrictions of this shell and taking full control of the device. There are default weak credentials that can be used to authenticate.
INFO
Published Date :
Oct. 28, 2021, 12:15 p.m.
Last Modified :
Nov. 3, 2021, 2 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.9
Exploitability Score :
2.8
Public PoC/Exploit Available at Github
CVE-2021-37748 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-2021-37748.
| URL | Resource |
|---|---|
| http://www.grandstream.com/products/gateways-and-atas/analog-telephone-adaptors/product/ht801 | Product Vendor Advisory |
| https://github.com/SECFORCE/CVE-2021-37748 | Third Party 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-2021-37748 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-37748 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. 03, 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://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://github.com/SECFORCE/CVE-2021-37748 No Types Assigned https://github.com/SECFORCE/CVE-2021-37748 Third Party 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 CWE-787 Added CPE Configuration AND OR *cpe:2.3:o:grandstream:ht801_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.0.29 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-2021-37748 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-2021-37748
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
1.32 }} 0.05%
score
0.86313
percentile