Multiple vulnerabilities in IBM Cloud Application Business Insights

Published: 2021-12-23 | Updated: 2023-02-09

Risk	High
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2021-45046 CVE-2021-45105
CWE-ID	CWE-94 CWE-835
Exploitation vector	Network
Public exploit	Vulnerability #1 is being exploited in the wild. Public exploit code for vulnerability #2 is available.
Vulnerable software	IBM Cloud Application Business Insights Server applications / Other server solutions
Vendor	IBM Corporation

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Code Injection

EUVDB-ID: #VU58976

Risk: High

CVSSv4.0: 9.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Amber]

CVE-ID: CVE-2021-45046

CWE-ID: CWE-94 - Improper Control of Generation of Code ('Code Injection')

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to incomplete patch in Apache Log4j 2.15.0 for a code injection vulnerability #VU58816 (CVE-2021-44228) in certain non-default configurations. A remote attacker with control over Thread Context Map (MDC) input data when the logging configuration uses a non-default Pattern Layout with either a Context Lookup (for example, $${ctx:loginId}) or a Thread Context Map pattern (%X, %mdc, or %MDC) can pass malicious data using a JNDI Lookup pattern and perform a denial of service (DoS) attack, exfiltrate data or execute arbitrary code.

Later discovery demonstrates a remote code execution on macOS but no other tested environments.

Mitigation

Install update from vendor's website.

Vulnerable software versions

IBM Cloud Application Business Insights: 1.1.5 - 1.1.7

CPE2.3

External links

https://www.ibm.com/blogs/psirt/security-bulletin-vulnerabilities-in-apache-log4j-impact-ibm-cloud-application-business-insights-cve-2021-45105-cve-2021-45046/
https://www.ibm.com/support/pages/node/6536872

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. However, proof of concept for this vulnerability is available.

2) Infinite loop

EUVDB-ID: #VU59051

Risk: Medium

CVSSv4.0: 7.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P/U:Green]

CVE-ID: CVE-2021-45105

CWE-ID: CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')

Exploit availability: No