// For flags

CVE-2021-37748

 

Severity Score

8.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

2
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

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.

Múltiples desbordamientos de búfer en el shell de configuración limitada (/sbin/gs_config) en los dispositivos Grandstream HT801 versiones anteriores a 1.0.29 permiten a usuarios remotos autenticados ejecutar código arbitrario como root por medio de una configuración manage_if diseñada, omitiendo así las restricciones previstas de este shell y tomando el control total del dispositivo. Se presentan credenciales débiles predeterminadas que pueden ser usadas para autenticar

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
Single
Confidentiality
Complete
Integrity
Complete
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2021-07-30 CVE Reserved
  • 2021-10-28 CVE Published
  • 2024-08-04 CVE Updated
  • 2024-08-04 First Exploit
  • 2024-10-16 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-787: Out-of-bounds Write
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Grandstream
Search vendor "Grandstream"
Ht801 Firmware
Search vendor "Grandstream" for product "Ht801 Firmware"
< 1.0.29
Search vendor "Grandstream" for product "Ht801 Firmware" and version " < 1.0.29"
-
Affected
in Grandstream
Search vendor "Grandstream"
Ht801
Search vendor "Grandstream" for product "Ht801"
--
Safe