Man-in-the-Middle (MitM) attack in F5 BIG-IP products
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2020-5917 |
| CWE-ID | CWE-300 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software |
BIG-IP 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-IQ Centralized Management Server applications / Remote management servers, RDP, SSH |
| Vendor | F5 Networks |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
1) Man-in-the-Middle (MitM) attack
EUVDB-ID: #VU46077
Risk: Medium
CVSSv4.0: 2.1 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]
CVE-ID: CVE-2020-5917
CWE-ID:
CWE-300 - Channel Accessible by Non-Endpoint ('Man-in-the-Middle')
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a Man-in-the-Middle (MitM) attack.
The vulnerability exists due to the BIG-IP and BIG-IQ host OpenSSH servers use keys less than 2048 bits that are no longer considered secure. A remote attacker can perform a Man-in-the-Middle (MitM) attack and/or insecure SSH communications.
Install updates from vendor's website.
Vulnerable software versionsBIG-IP: 11.5.2 - 15.1.0
BIG-IP LTM: 11.5.2 - 15.1.0
BIG-IP AAM: 11.5.2 - 15.1.0
BIG-IP AFM: 11.5.2 - 15.1.0
BIG-IP Analytics: 11.5.2 - 15.1.0
BIG-IP APM: 11.5.2 - 15.1.0
BIG-IP ASM: 11.5.2 - 15.1.0
BIG-IP DNS: 11.5.2 - 15.1.0
BIG-IP FPS: 11.5.2 - 15.1.0
BIG-IP GTM: 11.5.2 - 15.1.0
BIG-IP Link Controller: 11.5.2 - 15.1.0
BIG-IP PEM: 11.5.2 - 15.1.0
BIG-IQ Centralized Management: 5.2.0 - 7.0.0
CPE2.3- cpe:2.3:h:f5_networks:big-ip:11.5.8:*:*:*:*:*:*:*
- cpe:2.3:h:f5_networks:big-ip:11.6.5:*:*:*:*:*:*:*
- cpe:2.3:h:f5_networks:big-ip:12.1.5:*:*:*:*:*:*:*
- cpe:2.3:h:f5_networks:big-ip:13.1.3:*:*:*:*:*:*:*
- cpe:2.3:h:f5_networks:big-ip:14.1.2:*:*:*:*:*:*:*
- cpe:2.3:h:f5_networks:big-ip:15.0.1:*:*:*:*:*:*:*
- cpe:2.3:h:f5_networks:big-ip:15.1.0:*:*:*:*:*:*:*
- cpe:2.3:h:f5_networks:big-ip_ltm:11.5.2:*:*:*:*:*:*:*
- cpe:2.3:h:f5_networks:big-ip_ltm:11.5.3:*:*:*:*:*:*:*
- cpe:2.3:h:f5_networks:big-ip_ltm:11.5.4:*:*:*:*:*:*:*
- cpe:2.3:h:f5_networks:big-ip_aam:11.5.2:*:*:*:*:*:*:*
- cpe:2.3:h:f5_networks:big-ip_afm:11.5.2:*:*:*:*:*:*:*
- cpe:2.3:h:f5_networks:big-ip_analytics:11.5.2:*:*:*:*:*:*:*
- cpe:2.3:h:f5_networks:big-ip_apm:11.5.2:*:*:*:*:*:*:*
- cpe:2.3:h:f5_networks:big-ip_asm:11.5.2:*:*:*:*:*:*:*
- cpe:2.3:h:f5_networks:big-ip_dns:11.5.2:*:*:*:*:*:*:*
- cpe:2.3:h:f5_networks:big-ip_fps:11.5.2:*:*:*:*:*:*:*
- cpe:2.3:h:f5_networks:big-ip_gtm:11.5.2:*:*:*:*:*:*:*
- cpe:2.3:h:f5_networks:big-ip_link_controller:11.5.2:*:*:*:*:*:*:*
- cpe:2.3:h:f5_networks:big-ip_pem:11.5.2:*:*:*:*:*:*:*
- cpe:2.3:a:f5_networks:big-iq:5.2.0:*:*:*:*:*:*:*
https://support.f5.com/csp/article/K43404629
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.
