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Silverstripe CMS User Enumeration

Moderate severity GitHub Reviewed Published May 17, 2022 to the GitHub Advisory Database • Updated Jul 26, 2023

Package

composer silverstripe/cms (Composer)

Affected versions

< 3.5.5
>= 3.6, < 3.6.1

Patched versions

3.5.5
3.6.1

Description

Response discrepancy in the login and password reset forms in SilverStripe CMS before 3.5.5 and 3.6.x before 3.6.1 allows remote attackers to enumerate users via timing attacks.

References

Published by the National Vulnerability Database Oct 12, 2017
Published to the GitHub Advisory Database May 17, 2022
Last updated Jul 26, 2023
Reviewed Jul 26, 2023

Severity

Moderate

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
Low
Integrity
None
Availability
None

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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

EPSS score

0.175%
(56th percentile)

Weaknesses

CVE ID

CVE-2017-12849

GHSA ID

GHSA-fwhr-g5r4-xgxf

Source code

No known source code
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