CVE-2021-27499 Weak cryptography in Ypsomed mylife Cloud, mylife Mobile Application
Man-in-the-middle attackers can tamper with messages due to non-random IVs in the application layer encryption of the Ypsomed mylife App and Cloud communication.
- 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-2021-27499?
CVE-2021-27499 is a medium-severity vulnerability in Ypsomed mylife Cloud, mylife Mobile Application, published on 2 Aug 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Ypsomed mylife Cloud, mylife Mobile Application, Ypsomed mylife Cloud: All versions prior to 1.7.2, Ypsomed mylife App: All versions prior to 1.7.5,The application layer encryption of the communication protocol between the Ypsomed mylife App and mylife Cloud uses non-random IVs, which allows man-in-the-middle attackers to tamper with messages.
Which versions are affected by CVE-2021-27499?
It affects 2 products.
Products include Ypsomed Mylife, Ypsomed Mylife Cloud.
How do I fix CVE-2021-27499?
No fix has been published for CVE-2021-27499 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-27499 being exploited?
There is no known exploitation of CVE-2021-27499 in the wild and no public exploit code.
Other vulnerabilities in Ypsomed mylife Cloud, mylife Mobile Application
Sources
Also known as GHSA-47g5-g8gc-h4qg.