Denial of service in F5 BIG-IP products
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2021-23045 |
| CWE-ID | CWE-20 |
| Exploitation vector | Local network |
| Public exploit | N/A |
| Vulnerable software |
BIG-IP Hardware solutions / Firmware BIG-IP DDHD Hardware solutions / Firmware BIG-IP SSLO Hardware solutions / Firmware BIG-IP LTM Hardware solutions / Security hardware applicances BIG-IP AFM Hardware solutions / Security hardware applicances BIG-IP Analytics Hardware solutions / Security hardware applicances BIG-IP APM Hardware solutions / Security hardware applicances BIG-IP ASM Hardware solutions / Security hardware applicances BIG-IP FPS Hardware solutions / Security hardware applicances BIG-IP GTM Hardware solutions / Security hardware applicances BIG-IP PEM Hardware solutions / Security hardware applicances BIG-IP AAM Hardware solutions / Routers & switches, VoIP, GSM, etc BIG-IP DNS Hardware solutions / Routers & switches, VoIP, GSM, etc BIG-IP Link Controller Hardware solutions / Routers & switches, VoIP, GSM, etc BIG-IP Advanced WAF Client/Desktop applications / Antivirus software/Personal firewalls |
| Vendor | F5 Networks |
Security Bulletin
This security bulletin contains one low risk vulnerability.
1) Input validation error
EUVDB-ID: #VU56088
Risk: Low
CVSSv3.1: 4.6 [CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-23045
CWE-ID:
CWE-20 - Improper input validation
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input in the Traffic Management Microkernel (TMM). A remote attacker on the local network can pass specially crafted input to the application and perform a denial of service (DoS) attack.
MitigationInstall updates from vendor's website.
Vulnerable software versionsBIG-IP: 12.1.0 HF1 - 16.1.0
BIG-IP LTM: 12.1.0 HF1 - 16.0.1.2
BIG-IP AAM: 12.1.0 HF1 - 16.0.1.2
BIG-IP Advanced WAF: 12.1.0 - 16.0.1.2
BIG-IP AFM: 12.1.0 HF1 - 16.0.1.2
BIG-IP Analytics: 12.1.0 - 16.0.1.2
BIG-IP APM: 12.1.0 HF1 - 16.0.1.2
BIG-IP ASM: 12.1.0 HF1 - 16.0.1.2
BIG-IP DDHD: 12.1.0 - 16.0.1.2
BIG-IP DNS: 12.1.0 - 16.0.1.2
BIG-IP FPS: 12.1.0 - 16.0.1.2
BIG-IP GTM: 12.1.0 - 16.0.1.2
BIG-IP Link Controller: 12.1.0 HF1 - 16.0.1.2
BIG-IP PEM: 12.1.0 HF1 - 16.0.1.2
BIG-IP SSLO: 12.1.0 - 16.0.1.2
CPE2.3- cpe:2.3:h:f5_networks:big-ip:12.1.6:*:*:*:*:*:*:*
- cpe:2.3:h:f5_networks:big-ip:13.1.4:*:*:*:*:*:*:*
- cpe:2.3:h:f5_networks:big-ip:14.0.1.1:*:*:*:*:*:*:*
- cpe:2.3:h:f5_networks:big-ip:14.1.4.3:*:*:*:*:*:*:*
- cpe:2.3:h:f5_networks:big-ip:15.0.1.4:*:*:*:*:*:*:*
- cpe:2.3:h:f5_networks:big-ip:15.1.3.1:*:*:*:*:*:*:*
- cpe:2.3:h:f5_networks:big-ip:16.0.1.2:*:*:*:*:*:*:*
- cpe:2.3:h:f5_networks:big-ip:16.1.0:*:*:*:*:*:*:*
- cpe:2.3:h:f5_networks:big-ip_ltm:12.1.0 HF1:*:*:*:*:*:*:*
- cpe:2.3:h:f5_networks:big-ip_ltm:12.1.0:*:*:*:*:*:*:*
- cpe:2.3:h:f5_networks:big-ip_aam:12.1.0:HF1:*:*:*:*:*:*
- cpe:2.3:a:f5_networks:big-ip_advanced_waf:12.1.0:*:*:*:*:*:*:*
- cpe:2.3:h:f5_networks:big-ip_afm:12.1.0:HF1:*:*:*:*:*:*
- cpe:2.3:h:f5_networks:big-ip_analytics:12.1.0:*:*:*:*:*:*:*
- cpe:2.3:h:f5_networks:big-ip_apm:12.1.0:HF1:*:*:*:*:*:*
- cpe:2.3:h:f5_networks:big-ip_asm:12.1.0 HF1:*:*:*:*:*:*:*
- cpe:2.3:h:f5_networks:big-ip_ddhd:12.1.0:*:*:*:*:*:*:*
- cpe:2.3:h:f5_networks:big-ip_dns:12.1.0:*:*:*:*:*:*:*
- cpe:2.3:h:f5_networks:big-ip_fps:12.1.0:*:*:*:*:*:*:*
- cpe:2.3:h:f5_networks:big-ip_gtm:12.1.0:*:*:*:*:*:*:*
- cpe:2.3:h:f5_networks:big-ip_link_controller:12.1.0 HF1:*:*:*:*:*:*:*
- cpe:2.3:h:f5_networks:big-ip_pem:12.1.0 HF1:*:*:*:*:*:*:*
- cpe:2.3:h:f5_networks:big-ip_sslo:12.1.0:*:*:*:*:*:*:*
http://support.f5.com/csp/article/K94941221
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
