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Denial of service vulnerability on Password reset page

High severity GitHub Reviewed Published Feb 15, 2023 in kiwitcms/Kiwi • Updated Feb 15, 2023

Package

pip kiwitcms (pip)

Affected versions

< 12.0

Patched versions

12.0

Description

Impact

Previous versions of Kiwi TCMS do not impose rate limits which makes it easier to attempt denial-of-service attacks against the Password reset page. An attacker could potentially send a large number of emails if they know the email addresses of users in Kiwi TCMS. Additionally that may strain SMTP resources.

Patches

Users should upgrade to v12.0 or later.

Workarounds

Users may install and configure a rate-limiting proxy in front of Kiwi TCMS such as Nginx and/or configure rate limits on their email server when possible.

References

Disclosed by Ahmed Rabeaa Mosaa

References

@atodorov atodorov published to kiwitcms/Kiwi Feb 15, 2023
Published by the National Vulnerability Database Feb 15, 2023
Published to the GitHub Advisory Database Feb 15, 2023
Reviewed Feb 15, 2023
Last updated Feb 15, 2023

Severity

High

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS score

0.173%
(55th percentile)

Weaknesses

CVE ID

CVE-2023-25171

GHSA ID

GHSA-7j9h-3jxf-3vrf

Source code

Credits

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