CVE-2021-20400: Weak Encryption
First published: Fri Nov 26 2021(Updated: )
IBM QRadar uses weaker than expected cryptographic algorithms that could allow an attacker to decrypt highly sensitive information.
Credit: psirt@us.ibm.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| 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 |
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Reference Links
Frequently Asked Questions
What is the vulnerability ID for this vulnerability?
The vulnerability ID for this vulnerability is CVE-2021-20400.
What is the severity of CVE-2021-20400?
The severity of CVE-2021-20400 is high.
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.
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.
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.
- collector/ibm-support
- collector/nvd-index
- agent/references
- agent/severity
- agent/author
- agent/weakness
- agent/type
- agent/tags
- agent/description
- agent/event
- vendor/ibm
- canonical/ibm qradar security information and event manager
- version/ibm qradar security information and event manager/7.3.0
- version/ibm qradar security information and event manager/7.4.0
- version/ibm qradar security information and event manager/7.3.3
- version/ibm qradar security information and event manager/7.3.3-fix_pack_1
- version/ibm qradar security information and event manager/7.3.3-fix_pack_2
- version/ibm qradar security information and event manager/7.3.3-fix_pack_3
- version/ibm qradar security information and event manager/7.3.3-fix_pack_4
- version/ibm qradar security information and event manager/7.3.3-fix_pack_5
- version/ibm qradar security information and event manager/7.3.3-fix_pack_6
- version/ibm qradar security information and event manager/7.3.3-fix_pack_7
- version/ibm qradar security information and event manager/7.3.3-fix_pack_8
- version/ibm qradar security information and event manager/7.3.3-fix_pack_9
- version/ibm qradar security information and event manager/7.4.3
- version/ibm qradar security information and event manager/7.4.3-fix_pack_1
- version/ibm qradar security information and event manager/7.4.3-fix_pack_2
- version/ibm qradar security information and event manager/7.4.3-fix_pack_3
- vendor/linux
- canonical/linux linux kernel