CVE-2021-34588 Bender Charge Controller: Unprotected data export

High 8.6 Published Updated

Attackers can access sensitive backup data because the protection key is empty after a device reboot, exposing configuration details.

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-2021-34588?

CVE-2021-34588 is a high-severity missing authorization vulnerability in Bender / ebee CC612, published on 27 Apr 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

In Bender/ebee Charge Controllers in multiple versions are prone to unprotected data export. Backup export is protected via a random key. The key is set at user login. It is empty after reboot .

Weakness: CWE-425

Which versions are affected by CVE-2021-34588?

It affects 2 products.

Products include Bender Cc612 Firmware, Bender Icc15xx Firmware.

How do I fix CVE-2021-34588?

No fix has been published for CVE-2021-34588 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2021-34588 being exploited?

There is no known exploitation of CVE-2021-34588 in the wild and no public exploit code.

Sources

Also known as GHSA-m4qj-mfxh-2v5c.

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