MailMate up to 1.10 SMIME Import certificate validation

Summaryinfo

A vulnerability, which was classified as critical, has been found in MailMate up to 1.10. Impacted is an unknown function of the component SMIME Import Handler. Performing a manipulation results in certificate validation. This vulnerability is reported as CVE-2020-12619. The attack is possible to be carried out remotely. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in MailMate up to 1.10. This affects an unknown functionality of the component SMIME Import Handler. The manipulation with an unknown input leads to a certificate validation vulnerability. CWE is classifying the issue as CWE-295. The product does not validate, or incorrectly validates, a certificate. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

MailMate before 1.11 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.

The weakness was disclosed 08/20/2020. This vulnerability is uniquely identified as CVE-2020-12619 since 05/01/2020. The exploitability is told to be difficult. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1587.003 for this issue.

Upgrading to version 1.11 eliminates this vulnerability.

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Productinfo

Name

• MailMate

Version

• 1.0
• 1.1
• 1.2
• 1.3
• 1.4
• 1.5
• 1.6
• 1.7
• 1.8
• 1.9
• 1.10

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

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