CVE-2021-20400: Weak Encryption

Published Nov 26, 2021
·
Updated

IBM QRadar SIEM 7.3 and 7.4 uses weaker than expected cryptographic algorithms that could allow an attacker to decrypt highly sensitive information. IBM X-Force ID: 196074.

Other sources

IBM QRadar uses weaker than expected cryptographic algorithms that could allow an attacker to decrypt highly sensitive information.

Affected Software

17 affected components
IBM QRadar Security Information and Event Manager>=7.3.0<7.3.3
IBM QRadar Security Information and Event Manager>=7.4.0<7.4.3
IBM QRadar Security Information and Event Manager=7.3.3
IBM QRadar Security Information and Event Manager=7.3.3-fix_pack_1
IBM QRadar Security Information and Event Manager=7.3.3-fix_pack_2
IBM QRadar Security Information and Event Manager=7.3.3-fix_pack_3
IBM QRadar Security Information and Event Manager=7.3.3-fix_pack_4
IBM QRadar Security Information and Event Manager=7.3.3-fix_pack_5
IBM QRadar Security Information and Event Manager=7.3.3-fix_pack_6
IBM QRadar Security Information and Event Manager=7.3.3-fix_pack_7
IBM QRadar Security Information and Event Manager=7.3.3-fix_pack_8
IBM QRadar Security Information and Event Manager=7.3.3-fix_pack_9
IBM QRadar Security Information and Event Manager=7.4.3
IBM QRadar Security Information and Event Manager=7.4.3-fix_pack_1
IBM QRadar Security Information and Event Manager=7.4.3-fix_pack_2
IBM QRadar Security Information and Event Manager=7.4.3-fix_pack_3
Linux Linux kernel

Remediation

Patch Available

https://www.ibm.com/support/pages/node/6520488

Event History

Nov 26, 2021
CVE Published
via IBM·12:00 AM
Data Sourced
via IBM·12:00 AM
DescriptionSeverityAffected Software
Dec 1, 2021
CVE Published
via MITRE·05:05 PM
Data Sourced
via MITRE·05:05 PM
DescriptionSeverityWeakness

Parent advisories

This vulnerability appears in the following advisories.

Frequently Asked Questions

1

What is the vulnerability ID for this vulnerability?

The vulnerability ID for this vulnerability is CVE-2021-20400.

2

What is the severity of CVE-2021-20400?

The severity of CVE-2021-20400 is high.

3

Which version of IBM QRadar is affected by CVE-2021-20400?

IBM QRadar SIEM versions 7.3.0 to 7.3.3 and versions 7.4.0 to 7.4.3 are affected by CVE-2021-20400.

4

How can an attacker exploit CVE-2021-20400?

An attacker can exploit CVE-2021-20400 by using weaker than expected cryptographic algorithms to decrypt highly sensitive information.

5

Is there a fix for CVE-2021-20400?

Yes, IBM has released fixes for CVE-2021-20400. Please refer to the IBM support page for more information on specific versions and fix packs.

Company

Resources

Contact

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