PT-2023-1520 · Microsoft · Windows+1

Marcin Wiazowski · Publicado 2023-02-14 · Atualizado 2024-05-29 · CVE-2023-21822

Positive Technologies (AI Summary)

CVSS v3.1

7.8

Alta

Vetor base

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

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

Description The issue is related to a use-after-free error in the win32kfull driver of the Windows operating system, which can be exploited to execute arbitrary code with system privileges. This vulnerability is associated with the improper handling of memory after it has been freed. Successful exploitation can allow an attacker to gain SYSTEM privileges, enabling them to establish a foothold in the system after initial access is obtained through other means.

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

LPE

Use After Free

Enumeração de Fraquezas

CWE-416

Identificadores relacionados

BDU:2023-00963

CVE-2023-21822

ZDI-23-163

Produtos afetados

Windows

Windows Graphics

Referências · 13

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21822 · Aviso do Fabricante
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-21822 · Nota de Segurança
• https://twitter.com/0xor0ne/status/1722328386280849899 · Publicação no Twitter
• https://osv.dev/vulnerability/CVE-2023-21822 · Aviso do Fabricante
• https://t.me/cybersecuritytechnologies/8843 · Publicação no Telegram
• https://bdu.fstec.ru/vul/2023-00963 · Nota de Segurança
• https://twitter.com/akaclandestine/status/1690660019459502080 · Publicação no Twitter
• https://zerodayinitiative.com/blog/2023/8/1/exploiting-a-flaw-in-bitmap-handling-in-windows-user-mode-printer-drivers · Nota
• https://t.me/cibsecurity/58171 · Publicação no Telegram
• https://zerodayinitiative.com/advisories/ZDI-23-163 · Nota de Segurança
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2023-21822 · Aviso do Fabricante
• https://nvd.nist.gov/vuln/detail/CVE-2023-21822 · Nota de Segurança
• https://twitter.com/ksg93rd/status/1690788985298157568 · Publicação no Twitter