CVE-2021-43471 Auth bypass in n/a
Attackers can bypass authentication to remotely shut down Canon LBP223 printers, causing a denial of service.
- 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-2021-43471?
CVE-2021-43471 is a high-severity authentication bypass vulnerability in n/a, published on 6 Dec 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
In Canon LBP223 printers, the System Manager Mode login does not require an account password or PIN. An attacker can remotely shut down the device after entering the background, creating a denial of service vulnerability.
Weakness: CWE-521
Which versions are affected by CVE-2021-43471?
It affects 1 product.
Products include Canon Lbp223dw Firmware.
How do I fix CVE-2021-43471?
No fix has been published for CVE-2021-43471 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-2021-43471 being exploited?
There is no known exploitation of CVE-2021-43471 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Sources
Also known as GHSA-w2mh-7rhp-pm58.