CVE-2020-12618 Security feature bypass in n/a
A man-in-the-middle attacker can silently replace S/MIME certificates via a single email, enabling decryption of further communications in eM Client.
- 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-2020-12618?
CVE-2020-12618 is a medium-severity vulnerability in n/a, published on 20 Aug 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
eM Client before 7.2.33412.0 automatically imported S/MIME certificates and thereby silently replaced existing ones. This allowed a man-in-the-middle attacker to obtain an email-validated S/MIME certificate from a trusted CA and replace the public key of the entity to be impersonated. This enabled the attacker to decipher further communication. The entire attack could be accomplished by sending a single email.
Which versions are affected by CVE-2020-12618?
It affects 1 product.
Products include Emclient Em Client.
How do I fix CVE-2020-12618?
No fix has been published for CVE-2020-12618 yet. Limit exposure of the affected software until one is available.
Is CVE-2020-12618 being exploited?
There is no known exploitation of CVE-2020-12618 in the wild and no public exploit code.
Sources
Also known as GHSA-6qp5-c345-g9c7.