CVE-2020-7548 Weak cryptography in Smartlink, PowerTag, and Wiser Series Gateways (see security notification for version information)
Insufficiently random values in Smartlink, PowerTag, and Wiser Gateways allow unauthorized users to bypass authentication and log in.
- 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-2020-7548?
CVE-2020-7548 is a critical vulnerability in Smartlink, PowerTag, and Wiser Series Gateways (see security notification for version information), published on 1 Dec 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A CWE-330 - Use of Insufficiently Random Values vulnerability exists in Smartlink, PowerTag, and Wiser Series Gateways (see security notification for version information) that could allow unauthorized users to login.
Weakness: CWE-330
Which versions are affected by CVE-2020-7548?
It affects 7 products.
Products include Schneider-Electric Acti9 Powertag Link Firmware, Schneider-Electric Acti9 Powertag Link Hd Firmware, Schneider-Electric Acti9 Smartlink El B Firmware, Schneider-Electric Acti9 Smartlink Si B Firmware, Schneider-Electric Acti9 Smartlink Si D Firmware, Schneider-Electric Wiser Energy Firmware and 1 more.
How do I fix CVE-2020-7548?
No fix has been published for CVE-2020-7548 yet. Limit exposure of the affected software until one is available.
Is CVE-2020-7548 being exploited?
There is no known exploitation of CVE-2020-7548 in the wild and no public exploit code.
Sources
Also known as GHSA-hg3w-24rp-mf42.