Vulnerabilities > CVE-2021-37748 - Out-of-bounds Write vulnerability in Grandstream Ht801 Firmware 1.0.17.5

047910
CVSS 9.0 - CRITICAL
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
SINGLE
Confidentiality impact
COMPLETE
Integrity impact
COMPLETE
Availability impact
COMPLETE
network
low complexity
grandstream
CWE-787
critical

Summary

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.

Vulnerable Configurations

Part Description Count
OS
Grandstream
1
Hardware
Grandstream
1

Common Weakness Enumeration (CWE)