Microsoft Office/SharePoint information disclosure

Summaryinfo

A vulnerability, which was classified as problematic, was found in Microsoft Office and SharePoint. This vulnerability affects unknown code. The manipulation results in information disclosure. This vulnerability was named CVE-2020-1342. The attack may be performed from remote. There is no available exploit. It is advisable to implement a patch to correct this issue.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Microsoft Office and SharePoint (Office Suite Software) (affected version not known). Affected is some unknown functionality. 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:

An information disclosure vulnerability exists when Microsoft Office software reads out of bound memory due to an uninitialized variable, which could disclose the contents of memory, aka 'Microsoft Office Information Disclosure Vulnerability'. This CVE ID is unique from CVE-2020-1445.

The weakness was presented 07/14/2020 as confirmed security update guide (Website). The advisory is shared for download at portal.msrc.microsoft.com. The public release was coordinated in cooperation with the vendor. This vulnerability is traded as CVE-2020-1342. 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:

An information disclosure vulnerability exists when Microsoft Office software reads out of bound memory due to an uninitialized variable, which could disclose the contents of memory. An attacker who successfully exploited the vulnerability could view out of bound memory.

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

See VDB-157905 and VDB-157904 for similar entries. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

• Office Suite Software

Vendor

• Microsoft

Name

• Office
• SharePoint

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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