What is CVE-2020-4450?

CVE-2020-4450 is a vulnerability that allows remote attackers to execute arbitrary code on affected installations of IBM WebSphere Application Server.

How does CVE-2020-4450 vulnerability occur?

The vulnerability occurs within the handling of the IIOP protocol, due to the lack of proper validation of user-supplied input.

What is the severity of CVE-2020-4450?

The severity of CVE-2020-4450 is rated as critical with a CVSS score of 9.8.

What software is affected by CVE-2020-4450?

IBM WebSphere Application Server versions 8.5.0.0 through 8.5.5.18 and 9.0.0.0 through 9.0.5.5 are affected by this vulnerability.

Is authentication required to exploit CVE-2020-4450?

No, authentication is not required to exploit this vulnerability.

Vulnerability/
CVE-2020-4450

critical

CWE

502

5/6/2020

4/8/2024

16/9/2024

CVE-2020-4450: IBM WebSphere Application Server IIOP Deserialization of Untrusted Data Remote Code Execution Vulnerability

First published: Fri Jun 05 2020(Updated: )

IBM WebSphere Application Server 8.5 and 9.0 traditional could allow a remote attacker to execute arbitrary code on the system with a specially-crafted sequence of serialized objects. IBM X-Force ID: 181231.

Credit: psirt@us.ibm.com

Affected Software	Affected Version	How to fix
Ibm Websphere Application Server	>=8.5.0.0<8.5.5.18
Ibm Websphere Application Server	>=9.0.0.0<9.0.5.5
IBM WebSphere
IBM Security Identity Manager Virtual Appliance	<=7.0.2
IBM Security Identity Manager Virtual Appliance	<=7.0.1

Remedy

https://www.ibm.com/support/pages/node/6220294

Never miss a vulnerability like this again

Reference Links

Parent vulnerabilities

(Appears in the following advisories)

IBM-6242348

Frequently Asked Questions

What is CVE-2020-4450?
CVE-2020-4450 is a vulnerability that allows remote attackers to execute arbitrary code on affected installations of IBM WebSphere Application Server.
How does CVE-2020-4450 vulnerability occur?
The vulnerability occurs within the handling of the IIOP protocol, due to the lack of proper validation of user-supplied input.
What is the severity of CVE-2020-4450?
The severity of CVE-2020-4450 is rated as critical with a CVSS score of 9.8.
What software is affected by CVE-2020-4450?
IBM WebSphere Application Server versions 8.5.0.0 through 8.5.5.18 and 9.0.0.0 through 9.0.5.5 are affected by this vulnerability.
Is authentication required to exploit CVE-2020-4450?
No, authentication is not required to exploit this vulnerability.

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version/ibm security identity manager virtual appliance/7.0.1

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