Skip to content

Barzahlen Payment Module PHP SDK vulnerable to Observable Timing Discrepancy

Moderate severity GitHub Reviewed Published Jan 8, 2023 to the GitHub Advisory Database • Updated Oct 20, 2023

Package

composer barzahlen/barzahlen-php (Composer)

Affected versions

< 2.0.1

Patched versions

2.0.1

Description

A vulnerability, which was classified as problematic, was found in viafintech Barzahlen Payment Module PHP SDK up to 2.0.0. Affected is the function verify of the file src/Webhook.php. The manipulation leads to observable timing discrepancy. Upgrading to version 2.0.1 is able to address this issue. The name of the patch is 3e7d29dc0ca6c054a6d6e211f32dae89078594c1. It is recommended to upgrade the affected component. VDB-217650 is the identifier assigned to this vulnerability.

References

Published by the National Vulnerability Database Jan 8, 2023
Published to the GitHub Advisory Database Jan 8, 2023
Reviewed Jan 13, 2023
Last updated Oct 20, 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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

EPSS score

0.100%
(42nd percentile)

Weaknesses

CVE ID

CVE-2016-15015

GHSA ID

GHSA-vg5x-6q66-rvgx

Source code

Loading Checking history
See something to contribute? Suggest improvements for this vulnerability.