CVE Vulnerability

CVE-2020-11684

AT91bootstrap before 3.9.2 does not properly wipe encryption and authentication keys from memory before passing control to a less privileged software component. This can be exploited to disclose these keys and subsequently encrypt and sign the next boot stage (such as the bootloader).

6.4 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 10 / Impact : 4.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact NONE

Scope

9.1 /10

CVSS v3.0 : CRITICAL

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References
Link Resource
https://labs.f-secure.com/advisories/microchip-at91bootstrap/ Exploit Third Party Advisory
https://github.com/linux4sam/at91bootstrap/commit/45419497309ffbf27c17ea7938499aca99168927 Patch Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:linux4sam:at91bootstrap:*:*:*:*:*:*:*:*
Information

Published : 2020-09-14 02:15

Updated : 2021-07-21 11:39

NVD link : CVE-2020-11684

Mitre link : CVE-2020-11684

Products Affected
No products.
CWE
CWE-212