CVE-2022-3596

Description

An information leak was found in OpenStack's undercloud. This flaw allows unauthenticated, remote attackers to inspect sensitive data after discovering the IP address of the undercloud, possibly leading to compromising private information, including administrator access credentials.

Statement

Red Hat OpenStack Platform releases other than 13 are not affected by this vulnerability. This is because they use a different architecture, which does not rely on rsync running on the undercloud.

Mitigation

The rsync daemon is no longer needed and can be manually disabled by running the following commands on the undercloud:

    sudo rm /etc/xinetd.d/rsync /etc/rsyncd.conf
    sudo systemctl restart xinetd

However, this will be reverted if the undercloud gets updated.

Common Vulnerability Scoring System (CVSS) Score Details

Info alert:Important note

CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).

CVSS v3 Score Breakdown

Red HatNVDcve.org
Base Score7.57.5N/A
Attack VectorNetworkNetworkN/A
Attack ComplexityLowLowN/A
Privileges RequiredNoneNoneN/A
User InteractionNoneNoneN/A
ScopeUnchangedUnchangedN/A
ConfidentialityHighHighN/A
Integrity ImpactNoneNoneN/A
Availability ImpactNoneNoneN/A

Vector

Red Hat: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

NVD: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Understanding the Weakness (CWE)

CWE-402

Confidentiality

Technical Impact: Read Application Data

Acknowledgements

Red Hat would like to thank Maciej Relewicz (Juniper Networks) for reporting this issue.

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