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K
zdiMickey Jin (@patch1t) of Trend MicroZDI-23-645
HistoryMay 17, 2023 - 12:00 a.m.

Apple macOS AppleScript UASIsConstant SCPT File Parsing Out-Of-Bounds Read Information Disclosure Vulnerability

2023-05-1700:00:00
Mickey Jin (@patch1t) of Trend Micro
www.zerodayinitiative.com
12

7.1 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

HIGH

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

3.3 Low

CVSS2

Access Vector

LOCAL

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

PARTIAL

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

0.001 Low

EPSS

Percentile

24.0%

This vulnerability allows remote attackers to disclose sensitive information on affected installations of Apple macOS. Interaction with the AppleScript library is required to exploit this vulnerability but attack vectors may vary depending on the implementation. The specific flaw exists within the AppleScript framework. Crafted data in an SCPT file can trigger a read past the end of an allocated data structure. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the current process.

7.1 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

HIGH

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

3.3 Low

CVSS2

Access Vector

LOCAL

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

PARTIAL

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

0.001 Low

EPSS

Percentile

24.0%