High severity · published Mar 19, 2020
CVE-2020-10648
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…
7.8
CVSS
1.4%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.4% · higher than 72% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
LE
Leap · Opensuse
15.2 · source: NVD
UB
U-boot · Denx
before 2018.03; 2020.01 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-10648
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-10648
Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00030.html
Mailing List
http://www.openwall.com/lists/oss-security/2020/03/18/5
Patch
https://github.com/u-boot/u-boot/commits/master
Exploit
https://labs.f-secure.com/advisories/das-u-boot-verified-boot-bypass/
cert-portal.siemens.com
https://cert-portal.siemens.com/productcert/html/ssa-577017.html
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