#VU85919 Deserialization of Untrusted Data in IBM MQ - CVE-2020-4682

Vulnerability identifier: #VU85919

Vulnerability risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2020-4682

CWE-ID: CWE-502

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
IBM MQ
Server applications / Other server solutions

Vendor: IBM Corporation

Description

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

The vulnerability exists due to insecure input validation when processing serialized data. A remote attacker can pass specially crafted data to the application and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

IBM MQ: 7.5, 8.0, 9.0, 9.1, 9.2

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External links
https://exchange.xforce.ibmcloud.com/vulnerabilities/186509
https://www.ibm.com/support/pages/node/6408626

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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.