Vulnerability Name:

CVE-2021-20423 (CCN-196308)

Assigned:2020-12-17
Published:2021-07-12
Updated:2021-07-14
Summary:IBM Cloud Pak for Applications 4.3 could allow an authenticated user gain escalated privilesges due to improper application permissions. IBM X-Force ID: 196308.
CVSS v3 Severity:8.8 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
7.7 High (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
8.8 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
7.7 High (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
CVSS v2 Severity:6.5 Medium (CVSS v2 Vector: AV:N/AC:L/Au:S/C:P/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
9.0 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:S/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
Vulnerability Type:CWE-732
Vulnerability Consequences:Gain Privileges
References:Source: MITRE
Type: CNA
CVE-2021-20423

Source: XF
Type: UNKNOWN
ibm-cp4a-cve202120423-priv-escalation(196308)

Source: XF
Type: VDB Entry
ibm-cp4a-cve202120423-priv-escalation (196308)

Source: CCN
Type: IBM Security Bulletin 6471329 (Cloud Pak for Applications)
IBM Cloud Pak for Applications v4.3 does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.

Source: CONFIRM
Type: Vendor Advisory
https://www.ibm.com/support/pages/node/6471329

Vulnerable Configuration:Configuration 1:
  • cpe:/a:ibm:cloud_pak_for_applications:*:*:*:*:*:*:*:* (Version < 4.3.1)

    • Configuration CCN 1:
  • cpe:/a:ibm:cloud_pak_for_applications:4.3:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    ibm cloud pak for applications *
    ibm cloud pak for applications 4.3