PT-2020-4283 · Microsoft · Office Excel

Kdot · Published 2020-10-13 · Updated 2023-12-31 · CVE-2020-16932

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions: Microsoft Excel (affected versions not specified)

Description: A remote code execution issue exists in Microsoft Excel software due to improper handling of objects in memory. An attacker who successfully exploits this issue could run arbitrary code in the context of the current user. If the current user has administrative user rights, an attacker could take control of the affected system, allowing them to install programs, view, change, or delete data, or create new accounts with full user rights. Exploitation requires a user to open a specially crafted file with an affected version of Microsoft Excel. This could be achieved through email or web-based attacks, where an attacker convinces a user to open the specially crafted file.

Recommendations: At the moment, there is no information about a newer version that contains a fix for this vulnerability.

RCE

Buffer Overflow

Use of Uninitialized Resource

Weakness Enumeration

CWE-909

CWE-119

CWE-908

Related Identifiers

BDU:2020-04775

CVE-2020-16932

ZDI-20-1253

Affected Products

Office Excel

References · 7

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-16932 · Vendor Advisory
• https://zerodayinitiative.com/advisories/ZDI-20-1253 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-16932 · Security Note
• https://bdu.fstec.ru/vul/2020-04775 · Security Note
• https://osv.dev/vulnerability/CVE-2020-16932 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-16932 · Security Note
• https://cybersecurity-help.cz/vdb/SB2020101337 · Note