Risk | High |
Patch available | YES |
Number of vulnerabilities | 1 |
CVE-ID | CVE-2021-23008 |
CWE-ID | CWE-287 |
Exploitation vector | Network |
Public exploit | N/A |
Vulnerable software Subscribe |
BIG-IP APM Hardware solutions / Security hardware applicances |
Vendor | F5 Networks |
Security Bulletin
This security bulletin contains one high risk vulnerability.
EUVDB-ID: #VU52738
Risk: High
CVSSv3.1: 7.1 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-23008
CWE-ID:
CWE-287 - Improper Authentication
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to bypass authentication process.
The vulnerability exists due to an error when processing authentication requests. A remote attacker can bypass authentication process using a spoofed AS-REP (Kerberos Authentication Service Response) response sent over a hijacked KDC (Kerberos Key Distribution Center) connection, or from an AD server compromised by an attacker.
Successful exploitation of the vulnerability may allow an attacker to gain full control over the affected system.
Install updates from vendor's website.
Vulnerable software versionsBIG-IP APM: 11.5.2 - 16.0.1.1 2
External linkshttp://support.f5.com/csp/article/K51213246
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.