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HIGH · 8.8

CVE-2020-5763

Grandstream HT800 series firmware version 1.0.17.5 and below contain a backdoor in the SSH service. An authenticated remote attacker can obtain a root shell by correctly answering a challenge prompt.

Vulnerability Description

Grandstream HT800 series firmware version 1.0.17.5 and below contain a backdoor in the SSH service. An authenticated remote attacker can obtain a root shell by correctly answering a challenge prompt.

CVSS Score

8.8

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

Affected Products

VendorProductVersions
GrandstreamHt801 Firmware<= 1.0.17.5
GrandstreamHt801-
GrandstreamHt802 Firmware<= 1.0.17.5
GrandstreamHt802-
GrandstreamHt812 Firmware<= 1.0.17.5
GrandstreamHt812-
GrandstreamHt814 Firmware<= 1.0.17.5
GrandstreamHt814-
GrandstreamHt818 Firmware<= 1.0.17.5
GrandstreamHt818-
GrandstreamHt813 Firmware<= 1.0.17.5
GrandstreamHt813-

Related Weaknesses (CWE)

CWE-489CWE-326

References

FAQ

What is CVE-2020-5763?

CVE-2020-5763 is a vulnerability with a CVSS score of 8.8 (HIGH). Grandstream HT800 series firmware version 1.0.17.5 and below contain a backdoor in the SSH service. An authenticated remote attacker can obtain a root shell by correctly answering a challenge prompt.

How severe is CVE-2020-5763?

CVE-2020-5763 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2020-5763?

Check the references section above for vendor advisories and patch information. Affected products include: Grandstream Ht801 Firmware, Grandstream Ht801, Grandstream Ht802 Firmware, Grandstream Ht802, Grandstream Ht812 Firmware.