Denial of service in IBM Cloud Automation Manager



Published: 2022-09-05
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2021-34558
CWE-ID CWE-295
Exploitation vector Network
Public exploit Public exploit code for vulnerability #1 is available.
Vulnerable software
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IBM Cloud Automation Manager
Server applications / Other server solutions

Vendor IBM Corporation

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Improper Certificate Validation

EUVDB-ID: #VU55665

Risk: Medium

CVSSv3.1:

CVE-ID: CVE-2021-34558

CWE-ID: CWE-295 - Improper Certificate Validation

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to improper certificate verification in crypto/tls package in Go when processing X.509 certificates. The application does not properly assert that the type of public key in an X.509 certificate matches the expected type when doing a RSA based key exchange, allowing a malicious TLS server to cause a TLS client to panic.

Mitigation

Install update from vendor's website.

Vulnerable software versions

IBM Cloud Automation Manager: 4.2.0.1


CPE2.3 External links

http://www.ibm.com/blogs/psirt/security-bulletin-a-security-vulnerability-in-golang-go-affects-ibm-cloud-automation-manager/
http://www.ibm.com/support/pages/node/6489851

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?



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