PT-2023-1014 · Microsoft+1 · Windows+1

Jan Vojtěšek + 2 · Published 2023-01-10 · Updated 2024-06-28 · CVE-2023-21674

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Windows versions prior to the fixed version

Description The issue is related to a buffer overflow in the Windows Advanced Local Procedure Call (ALPC) handler, which can be exploited to elevate privileges and execute arbitrary code with SYSTEM privileges. An elevation-of-privilege vulnerability allows attackers to affect the system. The vulnerability has been exploited in the wild and can be used to break out of the sandbox in Chromium.

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

Exploit

LPE

Use After Free

Buffer Overflow

Weakness Enumeration

CWE-416

CWE-119

Related Identifiers

BDU:2023-00065

CVE-2023-21674

Affected Products

Chromium

Windows

References · 21

• 🔥 https://github.com/MzHmO/Exploit-Street/tree/main/2023/CVE-2023-21674 · Exploit
• 🔥 https://github.com/hd3s5aa/CVE-2023-21674 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2023-21674 · Security Note
• https://osv.dev/vulnerability/CVE-2023-21674 · Vendor Advisory
• https://safe-surf.ru/specialists/bulletins-nkcki/688434 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-21674 · Security Note
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-44680 · Vendor Advisory
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21674 · Vendor Advisory
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2023-21674 · Vendor Advisory
• https://bdu.fstec.ru/vul/2023-00065 · Security Note
• https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2023-21674 · Vendor Advisory
• https://t.me/true_secator/3921 · Telegram Post
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2023-21674 · Note
• https://t.me/offensivetwitter/2339 · Telegram Post
• https://twitter.com/clovernetics/status/1707726399086137768 · Twitter Post