CVE-2021-45884

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2021-45884
In Brave Desktop 1.17 through 1.33 before 1.33.106, when CNAME-based adblocking and a proxying extension with a SOCKS fallback are enabled, additional DNS requests are issued outside of the proxying extension using the system's DNS settings, resulting in information disclosure. NOTE: this issue exists because of an incomplete fix for CVE-2021-21323 and CVE-2021-22916.

7.5 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

4.3 /10

CVSS v2.0 : MEDIUM

V2 Legend

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

Exploitability : 8.6 / Impact : 2.9

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

References
Link Resource
https://github.com/brave/brave-browser/issues/19070 Exploit Issue Tracking Patch Third Party Advisory
https://github.com/brave/brave-browser/issues/20079 Issue Tracking Release Notes Third Party Advisory
https://github.com/brave/brave-core/pull/10742 Patch Third Party Advisory
https://hackerone.com/reports/1377864 Permissions Required
https://github.com/brave/brave-browser/issues/19070 Exploit Issue Tracking Patch Third Party Advisory
https://github.com/brave/brave-browser/issues/20079 Issue Tracking Release Notes Third Party Advisory
https://github.com/brave/brave-core/pull/10742 Patch Third Party Advisory
https://hackerone.com/reports/1377864 Permissions Required
Configurations

Configuration 1 (hide)

AND
cpe:2.3:a:brave:brave:*:*:*:*:*:*:*:*
OR cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*
History

21 Nov 2024, 06:33

Type Values Removed Values Added
References () https://github.com/brave/brave-browser/issues/19070 - Exploit, Issue Tracking, Patch, Third Party Advisory () https://github.com/brave/brave-browser/issues/19070 - Exploit, Issue Tracking, Patch, Third Party Advisory
References () https://github.com/brave/brave-browser/issues/20079 - Issue Tracking, Release Notes, Third Party Advisory () https://github.com/brave/brave-browser/issues/20079 - Issue Tracking, Release Notes, Third Party Advisory
References () https://github.com/brave/brave-core/pull/10742 - Patch, Third Party Advisory () https://github.com/brave/brave-core/pull/10742 - Patch, Third Party Advisory
References () https://hackerone.com/reports/1377864 - Permissions Required () https://hackerone.com/reports/1377864 - Permissions Required

07 Jan 2022, 19:48

Type Values Removed Values Added
CWE CWE-200
CPE cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
cpe:2.3:a:brave:brave:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*
CVSS v2 : unknown
v3 : unknown 		v2 : 4.3
v3 : 7.5
References (MISC) https://github.com/brave/brave-browser/issues/19070 - (MISC) https://github.com/brave/brave-browser/issues/19070 - Exploit, Issue Tracking, Patch, Third Party Advisory
References (MISC) https://github.com/brave/brave-core/pull/10742 - (MISC) https://github.com/brave/brave-core/pull/10742 - Patch, Third Party Advisory
References (MISC) https://github.com/brave/brave-browser/issues/20079 - (MISC) https://github.com/brave/brave-browser/issues/20079 - Issue Tracking, Release Notes, Third Party Advisory
References (MISC) https://hackerone.com/reports/1377864 - (MISC) https://hackerone.com/reports/1377864 - Permissions Required

27 Dec 2021, 22:15

Type Values Removed Values Added
New CVE
Information

Published : 2021-12-27 22:15

Updated : 2024-11-21 06:33

NVD link : CVE-2021-45884

Mitre link : CVE-2021-45884

CVE.ORG link : CVE-2021-45884

JSON object : View

Products Affected

microsoft

  • windows

apple

  • macos

brave

  • brave

linux

  • linux_kernel
CWE
CWE-200

Exposure of Sensitive Information to an Unauthorized Actor