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.

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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

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