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PRIOn knowledge basePRION:CVE-2021-21571

HistoryJun 24, 2021 - 5:15 p.m.

Input validation

2021-06-2417:15:00

PRIOn knowledge base

www.prio-n.com

6.5 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

LOW

Availability Impact

HIGH

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

6.5 Medium

AI Score

Confidence

High

5.8 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

0.002 Low

EPSS

Percentile

58.0%

JSON

Dell UEFI BIOS https stack leveraged by the Dell BIOSConnect feature and Dell HTTPS Boot feature contains an improper certificate validation vulnerability. A remote unauthenticated attacker may exploit this vulnerability using a person-in-the-middle attack which may lead to a denial of service and payload tampering.

CPENameOperatorVersion
alienware_m15_r6_firmwarelt1.3.3
chengming_3990_firmwarelt1.4.1
chengming_3991_firmwarelt1.4.1
g15_5510_firmwarelt1.4.0
g15_5511_firmwarelt1.3.3
g3_3500_firmwarelt1.9.0
g5_5500_firmwarelt1.9.0
g7_7500_firmwarelt1.9.0
g7_7700_firmwarelt1.9.0
inspiron_14_5418_firmwareeq< 2.1.0-a6

Name	Operator	Version
alienware_m15_r6_firmware	lt	1.3.3
chengming_3990_firmware	lt	1.4.1
chengming_3991_firmware	lt	1.4.1
g15_5510_firmware	lt	1.4.0
g15_5511_firmware	lt	1.3.3
g3_3500_firmware	lt	1.9.0
g5_5500_firmware	lt	1.9.0
g7_7500_firmware	lt	1.9.0
g7_7700_firmware	lt	1.9.0
inspiron_14_5418_firmware	eq	< 2.1.0-a6

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References

www.dell.com/support/kbdoc/en-us/000188682

6.5 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

LOW

Availability Impact

HIGH

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

6.5 Medium

AI Score

Confidence

High

5.8 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

0.002 Low

EPSS

Percentile

58.0%

JSON

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