Vulnerabilities
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CVE Vulnerabilities

CVE-2021-20208

Incorrect Privilege Assignment

Published: Apr 19, 2021 | Modified: Nov 21, 2024
CVSS 3.x
6.1
MEDIUM
Source:
NVD
CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:L/I:H/A:N
CVSS 2.x
4.9 MEDIUM
AV:N/AC:M/Au:S/C:P/I:P/A:N
RedHat/V2
RedHat/V3
6.1 MODERATE
CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:L/I:H/A:N
Ubuntu
LOW
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Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2021-20208
CWEhttps://cwe.mitre.org/data/definitions/266.html

A flaw was found in cifs-utils in versions before 6.13. A user when mounting a krb5 CIFS file system from within a container can use Kerberos credentials of the host. The highest threat from this vulnerability is to data confidentiality and integrity.

Weakness

A product incorrectly assigns a privilege to a particular actor, creating an unintended sphere of control for that actor.

Affected Software

NameVendorStart VersionEnd Version
Cifs-utilsSamba4.0 (including)6.13 (excluding)
Cifs-utilsUbuntubionic*
Cifs-utilsUbuntuesm-infra-legacy/trusty*
Cifs-utilsUbuntuesm-infra/bionic*
Cifs-utilsUbuntuesm-infra/focal*
Cifs-utilsUbuntuesm-infra/xenial*
Cifs-utilsUbuntufocal*
Cifs-utilsUbuntugroovy*
Cifs-utilsUbuntuhirsute*
Cifs-utilsUbuntuprecise/esm*
Cifs-utilsUbuntutrusty*
Cifs-utilsUbuntutrusty/esm*
Cifs-utilsUbuntuupstream*
Cifs-utilsUbuntuxenial*

Potential Mitigations

References

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