Microsoft Word 365 Apps for Enterprise/2019 information disclosure

Summaryinfo

A vulnerability was found in Microsoft Word 365 Apps for Enterprise/2019. It has been classified as problematic. Affected by this vulnerability is an unknown functionality. This manipulation causes information disclosure. This vulnerability is tracked as CVE-2020-1502. The attack is possible to be carried out remotely. No exploit exists. It is suggested to install a patch to address this issue.

Detailsinfo

A vulnerability was found in Microsoft Word 365 Apps for Enterprise/2019 (Word Processing Software). It has been declared as problematic. Affected by this vulnerability is an unknown code block. The manipulation with an unknown input leads to a information disclosure vulnerability. The CWE definition for the vulnerability is CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. As an impact it is known to affect confidentiality. The summary by CVE is:

An information disclosure vulnerability exists when Microsoft Word improperly discloses the contents of its memory. An attacker who exploited the vulnerability could use the information to compromise the user’s computer or data. To exploit the vulnerability, an attacker could craft a special document file and then convince the user to open it. An attacker must know the memory address location where the object was created. The update addresses the vulnerability by changing the way certain Word functions handle objects in memory.

The weakness was disclosed 08/11/2020 as confirmed security update guide (Website). The advisory is shared at portal.msrc.microsoft.com. The public release has been coordinated in cooperation with Microsoft. This vulnerability is known as CVE-2020-1502. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1592 for this issue. The advisory points out:

An information disclosure vulnerability exists when Microsoft Word improperly discloses the contents of its memory. An attacker who exploited the vulnerability could use the information to compromise the user’s computer or data.

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

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

• Word Processing Software

Vendor

• Microsoft

Name

• Word

Version

• 365 Apps for Enterprise
• 2019

License

• commercial

Website

• Vendor: https://www.microsoft.com/

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Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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