PT-2019-2990 · Microsoft · Windows Defender

Published 2019-08-13 · Updated 2024-05-29 · CVE-2019-1161

Positive Technologies (AI Summary)

CVSS v2.0

8.5

High

Base vector

AV:N/AC:M/Au:S/C:C/I:C/A:C

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

Description The issue is related to an elevation of privilege vulnerability in the MpSigStub.exe file for Defender, allowing file deletion in arbitrary locations. To exploit this, an attacker must first log on to the system and then run a specially crafted command. This could lead to the deletion of protected files on an affected system once MpSigStub.exe runs again. The vulnerability is associated with errors in privilege management.

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

Weakness Enumeration

CWE-264

Related Identifiers

BDU:2019-02969

CVE-2019-1161

Affected Products

Windows Defender

References · 8

• https://osv.dev/vulnerability/CVE-2019-1161 · Vendor Advisory
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1161 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2019-1161 · Security Note
• https://bdu.fstec.ru/vul/2019-02969 · Security Note
• https://cybersecurity-help.cz/vdb/SB2019081412 · Note
• https://tenable.com/plugins/nessus/127910 · Note
• https://t.me/avleonovcom/805 · Telegram Post
• https://t.me/sysadm_in_channel/2251 · Telegram Post