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CVE-2020-11933

local snapd exploit through cloud-init

Published: Jul 29, 2020Updated: Nov 21, 2024 Sources: CVE List NVDCWE-264
7.3HIGH
NVD MITRE
EPSS Score
0.2%
Top 87.8%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

Description

cloud-init as managed by snapd on Ubuntu Core 16 and Ubuntu Core 18 devices was run without restrictions on every boot, which a physical attacker could exploit by crafting cloud-init user-data/meta-data via external media to perform arbitrary changes on the device to bypass intended security mechanisms such as full disk encryption. This issue did not affect traditional Ubuntu systems. Fixed in snapd version 2.45.2, revision 8539 and core version 2.45.2, revision 9659.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:PAC:LPR:NUI:NS:CC:HI:HA:N
Exploitability
AV:PAttack Vector
Physical
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:CScope
Changed
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:NAvailability
None
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Weaknesses

CWE-264NVD-CWE-Other

Affected Products

Canonical
commercial·GBaka canonical ltd.
snapdOn-prem
Operating Systems / linux-distro
ubuntu linuxOn-premOS
Operating Systems / linux-distro
coreOn-prem
Operating Systems / linux-distro
and 1 more affected products View all →

Exploitability

Official Patch Available
Is your org exposed to CVE-2020-11933?We can run the check for you — a free external exposure review, no install. Check my exposure

References

https://launchpad.net/bugs/1879530
launchpad.net
https://ubuntu.com/USN-4424-1
ubuntu.com

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