CVE-2020-8341
| Summary |
In Lenovo systems, SMM BIOS Write Protection is used to prevent writes to SPI Flash. While this provides sufficient protection, an additional layer of protection is provided by SPI Protected Range Registers (PRx). After resuming from S3 sleep mode in various versions of BIOS for some Lenovo ThinkPad systems, the PRx is not set. This does not impact the SMM BIOS Write Protection, which keeps systems protected.
|
| Publication Date |
Sept. 2, 2020, 7:15 a.m. |
| Registration Date |
Jan. 26, 2021, 12:02 p.m. |
| Last Update |
Nov. 21, 2024, 2:38 p.m. |
|
CVSS3.1 : LOW
|
| スコア |
2.4
|
| Vector |
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |
| 攻撃元区分(AV) |
物理 |
| 攻撃条件の複雑さ(AC) |
低 |
| 攻撃に必要な特権レベル(PR) |
不要 |
| 利用者の関与(UI) |
不要 |
| 影響の想定範囲(S) |
変更なし |
| 機密性への影響(C) |
なし |
| 完全性への影響(I) |
低 |
| 可用性への影響(A) |
なし |
|
CVSS2.0 : LOW
|
| Score |
2.1
|
| Vector |
AV:L/AC:L/Au:N/C:N/I:P/A:N |
| 攻撃元区分(AV) |
ローカル |
| 攻撃条件の複雑さ(AC) |
低 |
| 攻撃前の認証要否(Au) |
不要 |
| 機密性への影響(C) |
なし |
| 完全性への影響(I) |
低 |
| 可用性への影響(A) |
なし |
| Get all privileges. |
いいえ
|
| Get user privileges |
いいえ
|
| Get other privileges |
いいえ
|
| User operation required |
いいえ
|
Affected software configurations
| Configuration1 |
or higher |
or less |
more than |
less than |
| cpe:2.3:o:lenovo:thinkpad_t490_\(20nx\)_firmware:*:*:*:*:*:*:*:* |
|
|
|
n2iet90w |
| execution environment |
| 1 |
cpe:2.3:h:lenovo:thinkpad_t490_\(20nx\):-:*:*:*:*:*:*:* |
| Configuration2 |
or higher |
or less |
more than |
less than |
| cpe:2.3:o:lenovo:thinkpad_t490_\(20qx\)_firmware:*:*:*:*:*:*:*:* |
|
|
|
n2iet90w |
| execution environment |
| 1 |
cpe:2.3:h:lenovo:thinkpad_t490_\(20qx\):-:*:*:*:*:*:*:* |
| Configuration3 |
or higher |
or less |
more than |
less than |
| cpe:2.3:o:lenovo:thinkpad_t490_\(20rx\)_firmware:*:*:*:*:*:*:*:* |
|
|
|
n2ret16w |
| execution environment |
| 1 |
cpe:2.3:h:lenovo:thinkpad_t490_\(20rx\):-:*:*:*:*:*:*:* |
| Configuration4 |
or higher |
or less |
more than |
less than |
| cpe:2.3:o:lenovo:thinkpad_t490s_\(20nx\)_firmware:*:*:*:*:*:*:*:* |
|
|
|
n2jet89w |
| execution environment |
| 1 |
cpe:2.3:h:lenovo:thinkpad_t490s_\(20nx\):-:*:*:*:*:*:*:* |
| Configuration5 |
or higher |
or less |
more than |
less than |
| cpe:2.3:o:lenovo:thinkpad_t495_drift_firmware:*:*:*:*:*:*:*:* |
|
|
|
2020-08-30 |
| execution environment |
| 1 |
cpe:2.3:h:lenovo:thinkpad_t495_drift:-:*:*:*:*:*:*:* |
| Configuration6 |
or higher |
or less |
more than |
less than |
| cpe:2.3:o:lenovo:thinkpad_t590_\(20nx\)_firmware:*:*:*:*:*:*:*:* |
|
|
|
n2iet90w |
| execution environment |
| 1 |
cpe:2.3:h:lenovo:thinkpad_t590_\(20nx\):-:*:*:*:*:*:*:* |
| Configuration7 |
or higher |
or less |
more than |
less than |
| cpe:2.3:o:lenovo:thinkpad_x1_carbon_\(20qx\)_firmware:*:*:*:*:*:*:*:* |
|
|
|
n2het54w |
| execution environment |
| 1 |
cpe:2.3:h:lenovo:thinkpad_x1_carbon_\(20qx\):-:*:*:*:*:*:*:* |
| Configuration8 |
or higher |
or less |
more than |
less than |
| cpe:2.3:o:lenovo:thinkpad_x1_yoga_\(20qx\)_firmware:*:*:*:*:*:*:*:* |
|
|
|
n2het54w |
| execution environment |
| 1 |
cpe:2.3:h:lenovo:thinkpad_x1_yoga_\(20qx\):-:*:*:*:*:*:*:* |
| Configuration9 |
or higher |
or less |
more than |
less than |
| cpe:2.3:o:lenovo:thinkpad_x390_\(20qx\)_firmware:*:*:*:*:*:*:*:* |
|
|
|
n2jet89w |
| execution environment |
| 1 |
cpe:2.3:h:lenovo:thinkpad_x390_\(20qx\):-:*:*:*:*:*:*:* |
| Configuration10 |
or higher |
or less |
more than |
less than |
| cpe:2.3:o:lenovo:thinkpad_x390_\(20sx\)_firmware:*:*:*:*:*:*:*:* |
|
|
|
n2set18w |
| execution environment |
| 1 |
cpe:2.3:h:lenovo:thinkpad_x390_\(20sx\):-:*:*:*:*:*:*:* |
Related information, measures and tools
Common Vulnerabilities List
JVN Vulnerability Information
複数の Lenovo ThinkPad における脆弱性
| Title |
複数の Lenovo ThinkPad における脆弱性
|
| Summary |
複数の Lenovo ThinkPad には、不特定の脆弱性が存在します。
|
| Possible impacts |
情報を改ざんされる可能性があります。 |
| Solution |
ベンダより正式な対策が公開されています。ベンダ情報を参照して適切な対策を実施してください。 |
| Publication Date |
Aug. 17, 2020, midnight |
| Registration Date |
Feb. 10, 2021, 3:02 p.m. |
| Last Update |
Feb. 10, 2021, 3:02 p.m. |
Affected System
| Lenovo |
|
ThinkPad T490 (20Nx) ファームウェア
|
|
ThinkPad T490 (20Qx) ファームウェア
|
|
ThinkPad T490 (20Rx) ファームウェア
|
|
ThinkPad T490s (20Nx) ファームウェア
|
|
ThinkPad T495 Drift ファームウェア
|
|
ThinkPad T590 (20Nx) ファームウェア
|
|
ThinkPad X1 Carbon (20Qx) ファームウェア
|
|
ThinkPad X1 Yoga (20Qx) ファームウェア
|
|
ThinkPad X390 (20Qx) ファームウェア
|
|
ThinkPad X390 (20Sx) ファームウェア
|
CVE (情報セキュリティ 共通脆弱性識別子)
CWE (共通脆弱性タイプ一覧)
ベンダー情報
Change Log
| No |
Changed Details |
Date of change |
| 1 |
[2021年02月10日]
掲載 |
Feb. 10, 2021, 3:02 p.m. |