PT-2020-2249 · Microsoft · Defender

Afang5472 + 3 · Published 2020-04-14 · Updated 2021-09-09 · CVE-2020-1002

Positive Technologies (AI Summary)

CVSS v3.1

7.1

High

Base vector

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

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

Description The issue is related to insufficient access restrictions in the MpSigStub.exe executable file of Microsoft Defender, allowing an attacker to elevate their privileges and delete files in certain parts of the file system by running a specially crafted command. To exploit this, an attacker would first need to log on to the system.

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

Improper Privilege Management

Weakness Enumeration

CWE-269

Related Identifiers

BDU:2020-02185

CVE-2020-1002

Affected Products

Defender

References · 5

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1002 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2020-1002 · Vendor Advisory
• https://bdu.fstec.ru/vul/2020-02185 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2020-1002 · Security Note
• https://t.me/cvenotify/2769 · Telegram Post