Vulnerability CVE-2021-1067

Vulnerability Name:

CVE-2021-1067 (CCN-195436)

Assigned:

2020-11-12

Published:

2021-01-19

Updated:

2021-01-28

Summary:

NVIDIA SHIELD TV, all versions prior to 8.2.2, contains a vulnerability in the implementation of the RPMB command status, in which an attacker can write to the Write Protect Configuration Block, which may lead to denial of service or escalation of privileges.

CVSS v3 Severity:

6.8 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
5.9 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Physical Attack Complexity (AC): Low Privileges Required (PR): None User Interaction (UI): None
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): High Integrity (I): High Availibility (A): High

5.7 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L)
5.0 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L/E:U/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Physical Attack Complexity (AC): Low Privileges Required (PR): None User Interaction (UI): None
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): Low Integrity (I): High Availibility (A): Low

CVSS v2 Severity:

4.6 Medium (CVSS v2 Vector: AV:L/AC:L/Au:N/C:P/I:P/A:P)

Exploitability Metrics:	Access Vector (AV): Local Access Complexity (AC): Low Authentication (Au): None
Impact Metrics:	Confidentiality (C): Partial Integrity (I): Partial Availibility (A): Partial

6.1 Medium (CCN CVSS v2 Vector: AV:L/AC:L/Au:N/C:P/I:C/A:P)

Exploitability Metrics:	Access Vector (AV): Local Access Complexity (AC): Low Athentication (Au): None
Impact Metrics:	Confidentiality (C): Partial Integrity (I): Complete Availibility (A): Partial

Vulnerability Type:

CWE-noinfo

Vulnerability Consequences:

Gain Privileges

References:

Source: MITRE
Type: CNA
CVE-2021-1067

Source: XF
Type: UNKNOWN
nvidia-cve20211067-priv-esc(195436)

Source: CCN
Type: NVIDIA Security Bulletin Answer ID 5148
NVIDIA SHIELD TV

Source: CONFIRM
Type: Vendor Advisory
https://nvidia.custhelp.com/app/answers/detail/a_id/5148

Vulnerable Configuration:

Configuration 1:

cpe:/a:nvidia:shield_experience:*:*:*:*:*:*:*:* (Version < 8.2.2)

AND

cpe:/o:google:android:9.0:*:*:*:*:*:*:*

Denotes that component is vulnerable

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