CVE-2019-20027 Auth bypass in n/a

Critical 9.8 Published 29 Jul 2020 Updated 5 Aug 2024

Attackers can bypass authentication on NEC PBX systems if configured to allow blank credentials, gaining unauthorized access.

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-2019-20027?

CVE-2019-20027 is a critical authentication bypass vulnerability in n/a, published on 29 Jul 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Aspire-derived NEC PBXes, including the SV8100, SV9100, SL1100 and SL2100 with software releases 7.0 or higher contain the possibility if incorrectly configured to allow a blank username and password combination to be entered as a valid, successfully authenticating account.

Weakness: CWE-287

Which versions are affected by CVE-2019-20027?

It affects 4 products.

Products include Nec Sl1100 Firmware, Nec Sl2100 Firmware, Nec Sv8100 Firmware, Nec Sv9100 Firmware.

How do I fix CVE-2019-20027?

No fix has been published for CVE-2019-20027 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-2019-20027 being exploited?

There is no known exploitation of CVE-2019-20027 in the wild and no public exploit code.

Sources

Also known as GHSA-6wgf-f4fv-8p8m.