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DC554163-8A0B-5D7E-8894-512F0D441EAC

HistoryJan 02, 2022 - 8:24 p.m.

Exploit for Out-of-bounds Write in Apple Macos

2022-01-0220:24:11

226

apple macos

out-of-bounds write

cve-2021-30853

gatekeeper bypass

notarization bypass

xprotect bypass

vulnerability

shell script

xpcproxy

posix_spawnp

enoexec

applesystempolicy kext

signed application

app bundle

internet sharing

payload script

gatekeeper checks

macos big sur

technical details.

CVSS2

4.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

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

CVSS3

5.5

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

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

AI Score

Confidence

High

EPSS

0.001

Percentile

20.9%

JSON

CVE-2021-30853

A simple POC script to test for CVE-2021-30657…

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CVSS2

4.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

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

CVSS3

5.5

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

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

AI Score

Confidence

High

EPSS

0.001

Percentile

20.9%

JSON

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