Improper Verification of Cryptographic Signature in IBM Cloud Automation Manager

1) Improper Verification of Cryptographic Signature

EUVDB-ID: #VU65780

Risk: Medium

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-24773

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

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to signature verification code does not properly check `DigestInfo` for a proper ASN.1 structure. A remote unauthenticated attacker can get a successful verification with signatures that contain invalid structures but a valid digest

Mitigation

Install update from vendor's website.

Vulnerable software versions

IBM Cloud Automation Manager: 4.2.0.1 iFix 1 - 4.2.0.1 iFix 6

External links

http://www.ibm.com/support/pages/node/6606921

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.