Vulnerability Name:

CVE-2020-4640 (CCN-185510)

Assigned:2019-12-30
Published:2021-02-02
Updated:2021-02-04
Summary:Certain IBM API Connect 10.0.0.0 through 10.0.1.0 and 2018.4.1.0 through 2018.4.1.13 configurations can result in sensitive information in the URL fragment identifiers. This information can be cached in the intermediate nodes like proxy servers, cdn, logging platforms, etc. An attacker can make use of this information to perform attacks by impersonating a user. IBM X-Force ID: 185510.
CVSS v3 Severity:4.1 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N)
3.6 Low (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Adjacent
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): Low
Integrity (I): Low
Availibility (A): None
3.4 Low (CCN CVSS v3.1 Vector: CVSS:3.1/AV:A/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N)
3.0 Low (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:A/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Adjacent
Attack Complexity (AC): High
Privileges Required (PR): Low
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): Low
Integrity (I): Low
Availibility (A): None
CVSS v2 Severity:3.8 Low (CVSS v2 Vector: AV:A/AC:M/Au:S/C:P/I:P/A:N)
Exploitability Metrics:Access Vector (AV): Adjacent_Network
Access Complexity (AC): Medium
Authentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): None
2.9 Low (CCN CVSS v2 Vector: AV:A/AC:H/Au:S/C:P/I:P/A:N)
Exploitability Metrics:Access Vector (AV): Adjacent_Network
Access Complexity (AC): High
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): None
Vulnerability Type:CWE-200
Vulnerability Consequences:Obtain Information
References:Source: MITRE
Type: CNA
CVE-2020-4640

Source: XF
Type: UNKNOWN
ibm-api-cve20204640-info-disc(185510)

Source: XF
Type: VDB Entry, Vendor Advisory
ibm-api-cve20204640-info-disc (185510)

Source: CCN
Type: IBM Security Bulletin 6410486 (API Connect)
IBM API Connect is vulnerable to sensitive information leak (CVE-2020-4640)

Source: CONFIRM
Type: Vendor Advisory
https://www.ibm.com/support/pages/node/6410486

Vulnerable Configuration:Configuration 1:
  • cpe:/a:ibm:api_connect:10.0.0.0:*:*:*:*:*:*:*
  • OR cpe:/a:ibm:api_connect:10.0.1.0:*:*:*:*:*:*:*
  • OR cpe:/a:ibm:api_connect:*:*:*:*:*:*:*:* (Version >= 2018.4.1.0 and <= 2018.4.1.13)

  • Configuration CCN 1:
  • cpe:/a:ibm:api_connect:2018.4.1.0:*:*:*:*:*:*:*
  • OR cpe:/a:ibm:api_connect:2018.4.1.13:*:*:*:*:*:*:*
  • OR cpe:/a:ibm:api_connect:10.0.0.0:*:*:*:*:*:*:*
  • OR cpe:/a:ibm:api_connect:10.0.1.0:*:*:*:*:*:*:*

  • * Denotes that component is vulnerable
    BACK
    ibm api connect 10.0.0.0
    ibm api connect 10.0.1.0
    ibm api connect *
    ibm api connect 2018.4.1.0
    ibm api connect 2018.4.1.13
    ibm api connect 10.0.0.0
    ibm api connect 10.0.1.0