Vulnerability Name:

CVE-2021-23036 (CCN-208103)

Assigned:2021-08-24
Published:2021-08-24
Updated:2021-09-24
Summary:On version 16.0.x before 16.0.1.2, when a BIG-IP ASM and DataSafe profile are configured on a virtual server, undisclosed requests can cause the Traffic Management Microkernel (TMM) to terminate.
Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
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:4.3 Medium (CVSS v2 Vector: AV:N/AC:M/Au:N/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
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-20
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2021-23036

Source: XF
Type: UNKNOWN
f5-cve202123036-dos(208103)

Source: CCN
Type: F5 Security Advisory K05043394
TMM vulnerability CVE-2021-23036

Source: MISC
Type: Mitigation, Vendor Advisory
https://support.f5.com/csp/article/K05043394

Vulnerable Configuration:Configuration 1:
  • cpe:/a:f5:big-ip_advanced_web_application_firewall:*:*:*:*:*:*:*:* (Version >= 16.0.0 and <= 16.0.1)
  • OR cpe:/a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:* (Version >= 16.0.0 and <= 16.0.1)
  • OR cpe:/a:f5:big-ip_datasafe:*:*:*:*:*:*:*:* (Version >= 16.0.0 and <= 16.0.1)

    • * Denotes that component is vulnerable
    BACK
    f5 big-ip advanced web application firewall *
    f5 big-ip application security manager *
    f5 big-ip datasafe *