Microsoft Office up to 2019 for Mac Outlook information disclosure

Summaryinfo

A vulnerability classified as critical was found in Microsoft Office up to 2019 for Mac. This vulnerability affects unknown code of the component Outlook. The manipulation results in information disclosure. This vulnerability is cataloged as CVE-2020-1229. The attack may be launched remotely. There is no exploit available. It is advisable to implement a patch to correct this issue.

Detailsinfo

A vulnerability, which was classified as critical, was found in Microsoft Office up to 2019 for Mac (Office Suite Software). Affected is an unknown function of the component Outlook. The manipulation with an unknown input leads to a information disclosure vulnerability. CWE is classifying the issue as CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. This is going to have an impact on confidentiality. CVE summarizes:

A security feature bypass vulnerability exists in Microsoft Outlook when Office fails to enforce security settings configured on a system, aka 'Microsoft Outlook Security Feature Bypass Vulnerability'.

The weakness was shared 06/09/2020 as confirmed security update guide (Website). The advisory is shared for download at portal.msrc.microsoft.com. The vendor cooperated in the coordination of the public release. This vulnerability is traded as CVE-2020-1229. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1592. The advisory points out:

A security feature bypass vulnerability exists in Microsoft Outlook when Office fails to enforce security settings configured on a system. An attacker who successfully exploited this vulnerability could cause a system to load remote images. These images could disclose the IP address of the targeted system to the attacker.

Applying a patch is able to eliminate this problem. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The entry VDB-156325 is related to this item. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

• Office Suite Software

Vendor

• Microsoft

Name

• Office

Version

• 365 Apps for Enterprise
• 2010 SP2
• 2013 RT SP1
• 2016
• 2016 for Mac
• 2019
• 2019 for Mac

License

• commercial

Website

• Vendor: https://www.microsoft.com/

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Once again VulDB remains the best source for vulnerability data.

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