Vulnerability Name:

CVE-2021-20400 (CCN-196074)

Assigned:2020-12-17
Published:2021-11-30
Updated:2021-12-02
Summary: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.
CVSS v3 Severity:7.5 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N)
6.5 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): None
Availibility (A): None
5.9 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N)
5.2 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): High
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): None
Availibility (A): None
CVSS v2 Severity:5.0 Medium (CVSS v2 Vector: AV:N/AC:L/Au:N/C:P/I:N/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): None
Availibility (A): None
5.4 Medium (CCN CVSS v2 Vector: AV:N/AC:H/Au:N/C:C/I:N/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): High
Athentication (Au): None
Impact Metrics:Confidentiality (C): Complete
Integrity (I): None
Availibility (A): None
Vulnerability Type:CWE-326
Vulnerability Consequences:Obtain Information
References:Source: MITRE
Type: CNA
CVE-2021-20400

Source: XF
Type: UNKNOWN
ibm-qradar-cve202120400-info-disc(196074)

Source: XF
Type: VDB Entry, Vendor Advisory
ibm-qradar-cve202120400-info-disc (196074)

Source: CCN
Type: IBM Security Bulletin 6520488 (QRadar SIEM)
IBM QRadar SIEM is vulnerable to using weaker than expected cryptographic algorithms (CVE-2021-20400)

Source: CONFIRM
Type: Patch, Vendor Advisory
https://www.ibm.com/support/pages/node/6520488

Vulnerable Configuration:Configuration 1:
  • cpe:/a:ibm:qradar_security_information_and_event_manager:*:*:*:*:*:*:*:* (Version >= 7.3.0 and < 7.3.3)
  • OR cpe:/a:ibm:qradar_security_information_and_event_manager:7.3.3:-:*:*:*:*:*:*
  • OR cpe:/a:ibm:qradar_security_information_and_event_manager:7.3.3:fix_pack_1:*:*:*:*:*:*
  • OR cpe:/a:ibm:qradar_security_information_and_event_manager:7.3.3:fix_pack_2:*:*:*:*:*:*
  • OR cpe:/a:ibm:qradar_security_information_and_event_manager:7.3.3:fix_pack_3:*:*:*:*:*:*
  • OR cpe:/a:ibm:qradar_security_information_and_event_manager:7.3.3:fix_pack_4:*:*:*:*:*:*
  • OR cpe:/a:ibm:qradar_security_information_and_event_manager:7.3.3:fix_pack_5:*:*:*:*:*:*
  • OR cpe:/a:ibm:qradar_security_information_and_event_manager:7.3.3:fix_pack_6:*:*:*:*:*:*
  • OR cpe:/a:ibm:qradar_security_information_and_event_manager:7.3.3:fix_pack_7:*:*:*:*:*:*
  • OR cpe:/a:ibm:qradar_security_information_and_event_manager:7.3.3:fix_pack_8:*:*:*:*:*:*
  • OR cpe:/a:ibm:qradar_security_information_and_event_manager:7.3.3:fix_pack_9:*:*:*:*:*:*
  • OR cpe:/a:ibm:qradar_security_information_and_event_manager:*:*:*:*:*:*:*:* (Version >= 7.4.0 and < 7.4.3)
  • OR cpe:/a:ibm:qradar_security_information_and_event_manager:7.4.3:-:*:*:*:*:*:*
  • OR cpe:/a:ibm:qradar_security_information_and_event_manager:7.4.3:fix_pack_1:*:*:*:*:*:*
  • OR cpe:/a:ibm:qradar_security_information_and_event_manager:7.4.3:fix_pack_2:*:*:*:*:*:*
  • OR cpe:/a:ibm:qradar_security_information_and_event_manager:7.4.3:fix_pack_3:*:*:*:*:*:*
  • AND
  • cpe:/o:linux:linux_kernel:-:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:ibm:qradar_security_information_and_event_manager:7.3:*:*:*:*:*:*:*
  • OR cpe:/a:ibm:qradar_security_information_and_event_manager:7.4:-:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    ibm qradar security information and event manager *
    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 *
    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 -
    ibm qradar security information and event manager 7.3
    ibm qradar security information and event manager 7.4 -