Improper Verification of Cryptographic Signature in IBM Cloud Automation Manager

1) Improper Verification of Cryptographic Signature

EUVDB-ID: #VU66758

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-24772

CWE-ID: CWE-347 - Improper Verification of Cryptographic Signature

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform MitM attack.

The vulnerability exists due to incorrect RSA PKCS#1 v1.5 signature verification caused by a missing check or tailing garbage bytes after decoding a `DigestInfo` ASN.1 structure. A remote attacker can forge a signature and perform a man-in-the-middle (MitM) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

IBM Cloud Automation Manager: 4.2.0.1 iFix 7

CPE2.3

• cpe:2.3:a:ibm_corporation:ibm_cloud_automation_manager:4.2.0.1:iFix 7:*:*:*:*:*:

External links

http://www.ibm.com/support/pages/node/6606937

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.