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instack-undercloud vulnerable to symlink attack on tmp files

Moderate severity GitHub Reviewed Published May 13, 2022 to the GitHub Advisory Database • Updated Apr 22, 2024

Package

pip instack-undercloud (pip)

Affected versions

<= 7.2.0

Patched versions

None

Description

A flaw was found in instack-undercloud 7.2.0 as packaged in Red Hat OpenStack Platform Pike, 6.1.0 as packaged in Red Hat OpenStack Platform Oacta, 5.3.0 as packaged in Red Hat OpenStack Newton, where pre-install and security policy scripts used insecure temporary files. A local user could exploit this flaw to conduct a symbolic-link attack, allowing them to overwrite the contents of arbitrary files.

References

Published by the National Vulnerability Database Sep 21, 2017
Published to the GitHub Advisory Database May 13, 2022
Reviewed Apr 22, 2024
Last updated Apr 22, 2024

Severity

Moderate
6.4
/ 10

CVSS base metrics

Attack vector
Local
Attack complexity
High
Privileges required
Low
User interaction
None
Scope
Changed
Confidentiality
High
Integrity
Low
Availability
None
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:N

Weaknesses

CVE ID

CVE-2017-7549

GHSA ID

GHSA-53wm-97p6-582f

Source code

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