CVE-2021-37915 Command injection in n/a

What is CVE-2021-37915?

CVE-2021-37915 is a high-severity command injection vulnerability in n/a, published on 28 Oct 2021. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

An issue was discovered on the Grandstream HT801 Analog Telephone Adaptor before 1.0.29.8. From the limited configuration shell, it is possible to set the malicious gdb_debug_server variable. As a result, after a reboot, the device downloads and executes malicious scripts from an attacker-defined host.

Which versions are affected by CVE-2021-37915?

It affects 1 product.

Products include Grandstream Ht801 Firmware.

How do I fix CVE-2021-37915?

No fix has been published for CVE-2021-37915 yet. Limit exposure of the affected software until one is available.

Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.

Is CVE-2021-37915 being exploited?

There is no known exploitation of CVE-2021-37915 in the wild and no public exploit code.

Other vulnerabilities in n/a

• CVE-2021-37748 Memory corruption in n/a High 8.8
• CVE-2020-5763 Hardcoded credentials in Grandstream HT800 Series High 8.8
• CVE-2020-5760 Command injection in Grandstream HT800 Series High 7.8
• CVE-2020-5761 Denial of service in Grandstream HT800 Series High 7.5
• CVE-2020-5762 Null dereference in Grandstream HT800 Series High 7.5

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-mfhv-6c62-c8w2.