Vulnerability Name:

CVE-2021-20576 (CCN-199280)

Assigned:2020-12-17
Published:2021-05-28
Updated:2021-06-04
Summary:IBM Security Verify Access 20.07 could allow a remote attacker to send a specially crafted HTTP GET request that could cause the application to crash.
CVSS v3 Severity:7.5 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
6.5 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/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): None
Integrity (I): None
Availibility (A): High
7.5 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
6.5 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/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): None
Integrity (I): None
Availibility (A): High
CVSS v2 Severity:5.0 Medium (CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
7.8 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
Vulnerability Type:CWE-noinfo
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2021-20576

Source: XF
Type: UNKNOWN
ibm-appgateway-cve202120576-dos(199280)

Source: XF
Type: VDB Entry, Vendor Advisory
ibm-appgateway-cve202120576-dos (199280)

Source: CCN
Type: IBM Security Bulletin 6457315 (Security Verify Access)
Multiple Security Vulnerabilities have been resolved in IBM Application Gateway (CVE-2021-20576, CVE-2021-20575, CVE-2021-29665)

Source: CONFIRM
Type: Patch, Vendor Advisory
https://www.ibm.com/support/pages/node/6457315

Vulnerable Configuration:Configuration 1:
  • cpe:/a:ibm:application_gateway:1.0:*:*:*:*:*:*:*
  • OR cpe:/a:ibm:security_verify_access:20.07:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:ibm:security_verify_access:20.07:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    ibm application gateway 1.0
    ibm security verify access 20.07
    ibm security verify access 20.07