CVE-2020-5763 Hardcoded credentials in Grandstream HT800 Series
An authenticated attacker can gain root access via a backdoor in the SSH service of Grandstream HT800 devices.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-5763?
CVE-2020-5763 is a high-severity vulnerability in Grandstream HT800 Series, published on 29 Jul 2020. Any signed-in user can exploit it over the network, with no action from the victim.
Official 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.
Which versions are affected by CVE-2020-5763?
It affects 6 products.
Products include Grandstream Ht801 Firmware, Grandstream Ht802 Firmware, Grandstream Ht812 Firmware, Grandstream Ht813 Firmware, Grandstream Ht814 Firmware, Grandstream Ht818 Firmware.
How do I fix CVE-2020-5763?
No fix has been published for CVE-2020-5763 yet. Limit exposure of the affected software until one is available.
Is CVE-2020-5763 being exploited?
There is no known exploitation of CVE-2020-5763 in the wild and no public exploit code.
Other vulnerabilities in Grandstream HT800 Series
Sources
Also known as GHSA-h2gv-99w3-wrfr.