CVE-2020-11684
Atmel AT91bootstrap Key Disclosure
Description
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).
INFO
Published Date :
Sept. 14, 2020, 2:15 p.m.
Last Modified :
July 21, 2021, 11:39 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.2
Exploitability Score :
3.9
Public PoC/Exploit Available at Github
CVE-2020-11684 has a 1 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2020-11684.
| URL | Resource |
|---|---|
| https://github.com/linux4sam/at91bootstrap/commit/45419497309ffbf27c17ea7938499aca99168927 | Patch Third Party Advisory |
| https://labs.f-secure.com/advisories/microchip-at91bootstrap/ | Exploit Third Party Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
(Inverse Path | F-Secure) Hardware Security Team - Security Advisories
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2020-11684 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2020-11684 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CWE Remap by [email protected]
Jul. 21, 2021
Action Type Old Value New Value Changed CWE CWE-326 CWE-212 -
Reanalysis by [email protected]
Apr. 08, 2021
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:a:linux4sam:at91bootstrap:*:*:*:*:*:*:*:* versions up to (excluding) 3.9.2 OR *cpe:2.3:a:linux4sam:at91bootstrap:*:*:*:*:*:*:*:* versions from (including) 3.7.2 up to (excluding) 3.9.2 -
Initial Analysis by [email protected]
Sep. 17, 2020
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:P/I:P/A:N) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N Changed Reference Type https://github.com/linux4sam/at91bootstrap/commit/45419497309ffbf27c17ea7938499aca99168927 No Types Assigned https://github.com/linux4sam/at91bootstrap/commit/45419497309ffbf27c17ea7938499aca99168927 Patch, Third Party Advisory Changed Reference Type https://labs.f-secure.com/advisories/microchip-at91bootstrap/ No Types Assigned https://labs.f-secure.com/advisories/microchip-at91bootstrap/ Exploit, Third Party Advisory Added CWE NIST CWE-326 Added CPE Configuration OR *cpe:2.3:a:linux4sam:at91bootstrap:*:*:*:*:*:*:*:* versions up to (excluding) 3.9.2
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2020-11684 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2020-11684
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.17 }} 0.03%
score
0.53574
percentile