PT-2020-18684 · Grandstream · Grandstream Ht800

Bignerd95 + 1 · Published 2020-07-29 · Updated 2020-07-31 · CVE-2020-5763

Positive Technologies (AI Summary)

CVSS v2.0

9.0

High

Base vector

AV:N/AC:L/Au:S/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions Grandstream HT800 series firmware version 1.0.17.5 and below

Description The issue concerns a backdoor in the SSH service, allowing an authenticated remote attacker to obtain a root shell by correctly answering a challenge prompt.

Recommendations For Grandstream HT800 series firmware version 1.0.17.5 and below, update to a version above 1.0.17.5 to remove the backdoor from the SSH service.

Exploit

Fix

Inadequate Encryption Strength

Weakness Enumeration

CWE-489

CWE-326

Related Identifiers

CVE-2020-5763

Affected Products

Grandstream Ht800

References · 4

• 🔥 https://tenable.com/security/research/tra-2020-43 · Exploit
• https://osv.dev/vulnerability/CVE-2020-5763 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-5763 · Security Note
• https://tenable.com/security/research/tra-2020-47 · Note