Home/CVE/Das U-Boot through 2020.01 allows attackers to bypass verified boot restrictions and subsequently boot arbitrary images
CVE

CVE-2020-10648

Das U-Boot through 2020.01 allows attackers to bypass verified boot restrictions and subsequently boot arbitrary images

Das U-Boot through 2020.01 allows attackers to bypass verified boot restrictions and subsequently boot arbitrary images by providing a crafted FIT image to a system configured to boot the default configuration.

HIGH · CVSS 7.8 EPSS 0.00123
Act now
  • Public exploit or PoC is available
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-20Improper Input Validation
▤

Affected Products & Versions

3
denx u-boot< 2018.03
denx u-bootall versions
opensuse leapall versions
⚠

Public Exploits & PoCs

1
poclabs.f-secure.com · das-u-boot-verified-boot-bypasslabs.f-secure.com
▣

Scoring & Timeline

7.8
HIGH · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD19 Mar 2020 · 02:15 PM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
⚑

Vendor Advisories

11
cisa-aa-advisoriesicsa-26-134-16
siemens-csafSSA-577017
suse-csafSUSE-SU-2020:3474-1
suse-csafopenSUSE-SU-2020:1930-1
suse-csafSUSE-SU-2020:3282-1
🔗

References & Sources

4
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00030.htmlThird Party Advisory
http://www.openwall.com/lists/oss-security/2020/03/18/5Mailing ListThird Party Advisory
https://github.com/u-boot/u-boot/commits/masterPatchThird Party Advisory
https://cert-portal.siemens.com/productcert/html/ssa-577017.html
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