Vulnerabilities
Misconfiguration
Compliance
CVE Vulnerabilities

CVE-2020-8026

Incorrect Default Permissions

Published: Aug 07, 2020 | Modified: Nov 21, 2024
CVSS 3.x
7.8
HIGH
Source:
NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.x
7.2 HIGH
AV:L/AC:L/Au:N/C:C/I:C/A:C
RedHat/V2
RedHat/V3
Ubuntu
MEDIUM
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Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2020-8026
CWEhttps://cwe.mitre.org/data/definitions/276.html

A Incorrect Default Permissions vulnerability in the packaging of inn in openSUSE Leap 15.2, openSUSE Tumbleweed, openSUSE Leap 15.1 allows local attackers with control of the new user to escalate their privileges to root. This issue affects: openSUSE Leap 15.2 inn version 2.6.2-lp152.1.26 and prior versions. openSUSE Tumbleweed inn version 2.6.2-4.2 and prior versions. openSUSE Leap 15.1 inn version 2.5.4-lp151.3.3.1 and prior versions.

Weakness

During installation, installed file permissions are set to allow anyone to modify those files.

Affected Software

NameVendorStart VersionEnd Version
Backports_sleOpensuse15.0-sp1 (including)15.0-sp1 (including)
Backports_sleOpensuse15.0-sp2 (including)15.0-sp2 (including)
TumbleweedOpensuse*2.6.2-4.2 (including)
LeapOpensuse15.1 (including)15.1 (including)
LeapOpensuse15.2 (including)15.2 (including)
InnUbuntutrusty*

Potential Mitigations

  • Compartmentalize the system to have “safe” areas where trust boundaries can be unambiguously drawn. Do not allow sensitive data to go outside of the trust boundary and always be careful when interfacing with a compartment outside of the safe area.
  • Ensure that appropriate compartmentalization is built into the system design, and the compartmentalization allows for and reinforces privilege separation functionality. Architects and designers should rely on the principle of least privilege to decide the appropriate time to use privileges and the time to drop privileges.

References

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