CVE-2017-3216 Auth bypass in BM2022

Critical 9.8 Published Updated

Remote attackers can bypass authentication to gain administrator access on WiMAX routers using MediaTek SDK httpd plugins.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2017-3216?

CVE-2017-3216 is a critical authentication bypass vulnerability in Green Packet BM2022, published on 20 Jun 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

WiMAX routers based on the MediaTek SDK (libmtk) that use a custom httpd plugin are vulnerable to an authentication bypass allowing a remote, unauthenticated attacker to gain administrator access to the device by performing an administrator password change on the device via a crafted POST request.

Weakness: CWE-306

Which versions are affected by CVE-2017-3216?

It affects 14 products.

Products include Greenpacket Ox350 Firmware, Huawei Bm2022 Firmware, Huawei Hes-309m Firmware, Huawei Hes-319m2w Firmware, Huawei Hes-319m Firmware, Huawei Hes-339m Firmware and 8 more.

How do I fix CVE-2017-3216?

No fix has been published for CVE-2017-3216 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2017-3216 being exploited?

There is no known exploitation of CVE-2017-3216 in the wild and no public exploit code.

Sources

Also known as GHSA-mf99-f92w-2rq5.

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