CVE-2020-11684
CVSS V2 Medium 6.4
CVSS V3 Critical 9.1
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).
Overview
- CVE ID
- CVE-2020-11684
- Assigner
- cve@mitre.org
- Vulnerability Status
- Analyzed
- Published Version
- 2020-09-14T14:15:10
- Last Modified Date
- 2021-07-21T11:39:23
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:linux4sam:at91bootstrap:*:*:*:*:*:*:*:* | 1 | OR | 3.7.2 | 3.9.2 |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:L/Au:N/C:P/I:P/A:N
- Access Vector
- NETWORK
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- PARTIAL
- Availability Impact
- NONE
- Base Score
- 6.4
- Severity
- MEDIUM
- Exploitability Score
- 10
- Impact Score
- 4.9
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- NONE
- Base Score
- 9.1
- Base Severity
- CRITICAL
- Exploitability Score
- 3.9
- Impact Score
- 5.2
References
| Reference URL | Reference Tags |
|---|---|
| https://labs.f-secure.com/advisories/microchip-at91bootstrap/ | Exploit Third Party Advisory |
| https://github.com/linux4sam/at91bootstrap/commit/45419497309ffbf27c17ea7938499aca99168927 | Patch Third Party Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2020-11684 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-11684 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 07:01:31 | Added to TrackCVE | |||
| 2022-12-04 22:34:54 | 2020-09-14T14:15Z | 2020-09-14T14:15:10 | CVE Published Date | updated |
| 2022-12-04 22:34:54 | 2021-07-21T11:39:23 | CVE Modified Date | updated | |
| 2022-12-04 22:34:54 | Analyzed | Vulnerability Status | updated |