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K
zdiWei Lei and Sergey Kornienko (@b1thvn_) of PixiePoint SecurityZDI-24-452
HistoryMay 14, 2024 - 12:00 a.m.

Microsoft Windows cldflt Type Confusion Information Disclosure Vulnerability

2024-05-1400:00:00
Wei Lei and Sergey Kornienko (@b1thvn_) of PixiePoint Security
www.zerodayinitiative.com
7
microsoft windows
type confusion
information disclosure
vulnerability
cloud files mini filter
cldflt.sys
kernel

5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

8.2 High

AI Score

Confidence

High

1.7 Low

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:L/AC:L/Au:S/C:P/I:N/A:N

0.0005 Low

EPSS

Percentile

16.2%

This vulnerability allows local attackers to disclose sensitive information on affected installations of Microsoft Windows. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the Cloud Files Mini Filter Driver, cldflt.sys. The issue results from the lack of proper validation of user-supplied data, which can result in a type confusion condition. An attacker can leverage this vulnerability to disclose information in the context of the kernel.

5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

8.2 High

AI Score

Confidence

High

1.7 Low

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:L/AC:L/Au:S/C:P/I:N/A:N

0.0005 Low

EPSS

Percentile

16.2%