Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Emclient | Em Client | < 7.2.33412.0 |
References
- https://www.emclient.com/release-historyRelease NotesVendor Advisory
- https://www.nds.ruhr-uni-bochum.de/media/nds/veroeffentlichungen/2020/08/15/mailThird Party Advisory
- https://www.emclient.com/release-historyRelease NotesVendor Advisory
- https://www.nds.ruhr-uni-bochum.de/media/nds/veroeffentlichungen/2020/08/15/mailThird Party Advisory
FAQ
What is CVE-2020-12618?
CVE-2020-12618 is a vulnerability with a CVSS score of 4.8 (MEDIUM). 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 certi...
How severe is CVE-2020-12618?
CVE-2020-12618 has been rated MEDIUM with a CVSS base score of 4.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-12618?
Check the references section above for vendor advisories and patch information. Affected products include: Emclient Em Client.