Security Bulletin: IBM Safer Payments vulnerable to denial of service attack (CVE-2023-27556)

Summary

The API and MCI interfaces of IBM Safer Payments are vulnerable to the Slowloris denial of service attack. This vulnerability is addressed

Vulnerability Details

CVEID:CVE-2023-27556
**DESCRIPTION:**IBM Counter Fraud Management for Safer Payments does not properly allocate resources without limits or throttling which could allow a remote attacker to cause a denial of service.
CVSS Base score: 6.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/249190 for the current score.
CVSS Vector: (CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

Affected Products and Versions

Affected Product(s): IBM Safer Payments

Version(s): 6.1.0.00 and above, 6.2.0.00 and above, 6.3.0.00 - 6.3.1.03, 6.4.0.00 - 6.4.2.02 and 6.5.0.00

Remediation/Fixes

Update IBM Safer Payments to version 6.3.1.04, 6.4.2.03, 6.5.0.01 or higher.

Refer to the IBM Safer Payments documentation to download the updates.

Workarounds and Mitigations

Use a reverse proxy with protection mechanisms in front of IBM Safer Payments.