Weak PGP and S/MIME implementation in MDaemon



Published: 2018-05-17
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID N/A
CWE-ID CWE-310
Exploitation vector Local
Public exploit N/A
Vulnerable software
Subscribe
MDaemon
Server applications / Mail servers

Vendor Alt-N

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Information disclosure

EUVDB-ID: #VU12775

Risk: Low

CVSSv3.1: 2.6 [CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: N/A

CWE-ID: CWE-310 - Cryptographic Issues

Exploit availability: No

Description

The vulnerability allows a remote attacker to decrypt sensitive information.

The vulnerability exists due to error in OpenPGP and S/MIME specifications when implementing end-to-end encryption of email communication. A remote attacker can decrypt encrypted data and gain access to sensitive information.

Mitigation

Update to version 18.0.1 or apply security patch.

Vulnerable software versions

MDaemon: 17.0.0 - 18.0.0

External links

http://www.altn.com/Support/SecurityUpdate/MD051518_MDaemon_EN/
http://efail.de/


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

The attacker would have to login to the system and perform certain actions in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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