CVE-2021-38154 Missing authorization in n/a
Attackers can modify email settings on Canon devices to exfiltrate sensitive data like faxes if Catwalk Server is enabled and PIN protection is disabled.
- 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-2021-38154?
CVE-2021-38154 is a high-severity missing authorization vulnerability in n/a, published on 29 Aug 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Certain Canon devices manufactured in 2012 through 2020 (such as imageRUNNER ADVANCE iR-ADV C5250), when Catwalk Server is enabled for HTTP access, allow remote attackers to modify an e-mail address setting, and thus cause the device to send sensitive information through e-mail to the attacker. For example, an incoming FAX may be sent through e-mail to the attacker. This occurs when a PIN is not required for General User Mode, as exploited in the wild in August 2021.
Weakness: CWE-732
Which versions are affected by CVE-2021-38154?
It affects 1 product.
Products include Canon -.
How do I fix CVE-2021-38154?
No fix has been published for CVE-2021-38154 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-2021-38154 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-38154 exists.
Public exploit code: 1 Nuclei template.
Sources
Also known as GHSA-53fm-fvpg-f4cc.