Microsoft Office/SharePoint information disclosure

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CVSS Meta Temp Score
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4.7$0-$5k0.00

A vulnerability, which was classified as problematic, was found in Microsoft Office and SharePoint (Office Suite Software) (version unknown). 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. 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 since 11/04/2019. 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 current price for an exploit might be approx. USD $0-$5k (estimation calculated on 10/29/2020). 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 157905 and 157904 for similar entries.

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VulDB Meta Base Score: 4.9
VulDB Meta Temp Score: 4.7

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔒

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VulDB Base Score: 🔒
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VulDB Reliability: 🔍

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Exploitinginfoedit

Class: Information disclosure
CWE: CWE-200
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

Price Prediction: 🔍
Current Price Estimation: 🔒

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Countermeasuresinfoedit

Recommended: Patch
Status: 🔍

Reaction Time: 🔒
0-Day Time: 🔒
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Timelineinfoedit

11/04/2019 CVE assigned
07/14/2020 +253 days Advisory disclosed
07/14/2020 +0 days Countermeasure disclosed
07/15/2020 +1 days VulDB entry created
10/29/2020 +106 days VulDB last update

Sourcesinfoedit

Vendor: https://www.microsoft.com/

Advisory: portal.msrc.microsoft.com
Status: Confirmed
Coordinated: 🔒

CVE: CVE-2020-1342 (🔒)
See also: 🔒

Entryinfoedit

Created: 07/15/2020 09:19 AM
Updated: 10/29/2020 04:52 PM
Changes: (1) source_cve_assigned
Complete: 🔍

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