Improper Verification of Cryptographic Signature in IBM Cloud Automation Manager

1) Improper Verification of Cryptographic Signature

EUVDB-ID: #VU65780

Risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

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

CPE2.3

• cpe:2.3:a:ibm_corporation:ibm_cloud_automation_manager:4.2.0.1:iFix 1:*:*:*:*:*:*
• cpe:2.3:a:ibm_corporation:ibm_cloud_automation_manager:4.2.0.1:iFix 2:*:*:*:*:*:*
• cpe:2.3:a:ibm_corporation:ibm_cloud_automation_manager:4.2.0.1:iFix 3:*:*:*:*:*:*

External links

https://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.