SB2022072517 - Improper Verification of Cryptographic Signature in IBM Cloud Pak for Multicloud Management Managed Services
Published: July 25, 2022
Security Bulletin ID
SB2022072517
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Improper Verification of Cryptographic Signature (CVE-ID: CVE-2022-24771)
The vulnerability allows a remote attacker to bypass security restrictions.
The vulnerability exists due to a improper signature verification when checking the digestAlgorithm structure. A remote unauthenticated attacker can use a specially-crafted structure to steal padding bytes and use unchecked portion of the PKCS#1 encoded message to exploit this vulnerability and forge a signature when a low public exponent is being used.
Remediation
Install update from vendor's website.
References
- https://www.ibm.com/blogs/psirt/security-bulletin-a-security-vulnerability-in-node-js-node-forge-affects-ibm-cloud-pak-for-multicloud-management-managed-services-2/"
- https://www.ibm.com/blogs/psirt/security-bulletin-a-security-vulnerability-in-node-js-node-forge-affects-ibm-cloud-pak-for-multicloud-management-managed-services-2/</a><br><a
- https://www.ibm.com/support/pages/node/6606581"
- https://www.ibm.com/support/pages/node/6606581</a><br><br><br></p>