Backdoor Vulnerability in Grandstream HT800 Series SSH Service
CVE-2020-5763

8.8HIGH

Key Information:

Vendor

Grandstream

Status
Grandstream Ht800 Series
Vendor
CVE Published:
29 July 2020

What is CVE-2020-5763?

The Grandstream HT800 series firmware versions up to 1.0.17.5 contains a critical backdoor in the SSH service. This vulnerability allows an authenticated remote attacker to gain unauthorized root access by successfully responding to a challenge prompt, potentially compromising the entire system. Users are advised to upgrade to patched firmware to mitigate the risks associated with this security flaw.

Affected Version(s)

Grandstream HT800 Series Versions 1.0.17.5 and below

References

https://www.tenable.com/security/research/tra-2020-43
x_refsource_MISC
https://www.tenable.com/security/research/tra-2020-47
x_refsource_MISC

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.