Improper Certificate Validation in F5 BIG-IP products
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2020-5913 |
| CWE-ID | CWE-295 |
| Exploitation vector | 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 medium risk vulnerability.
1) Improper Certificate Validation
EUVDB-ID: #VU46071
Risk: Medium
CVSSv4.0: 6.9 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]
CVE-ID: CVE-2020-5913
CWE-ID:
CWE-295 - Improper Certificate Validation
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 Server SSL profile ignores revoked certificates, even when a valid CRL is present. A remote attacker can perform a MitM attack on the connections.
MitigationInstall updates from vendor's website.
Vulnerable software versionsBIG-IP: 11.6.1 - 15.1.0
BIG-IP LTM: 11.6.1 - 15.1.0
BIG-IP AAM: 11.6.1 - 15.1.0
BIG-IP Advanced WAF: 11.6.1 - 15.1.0
BIG-IP AFM: 11.6.1 - 15.1.0
BIG-IP Analytics: 11.6.1 - 15.1.0
BIG-IP APM: 11.6.1 - 15.1.0
BIG-IP ASM: 11.6.1 - 15.1.0
BIG-IP DDHD: 11.6.1 - 15.1.0
BIG-IP DNS: 11.6.1 - 15.1.0
BIG-IP FPS: 11.6.0 - 15.1.0
BIG-IP GTM: 11.6.1 - 15.1.0
BIG-IP Link Controller: 11.6.1 - 15.1.0
BIG-IP PEM: 11.6.1 - 15.1.0
BIG-IP SSLO: 11.6.1 - 15.1.0
CPE2.3- 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:11.6.1:*:*:*:*:*:*:*
- cpe:2.3:h:f5_networks:big-ip_ltm:11.6.2:*:*:*:*:*:*:*
- cpe:2.3:h:f5_networks:big-ip_ltm:11.6.3:*:*:*:*:*:*:*
- cpe:2.3:h:f5_networks:big-ip_aam:11.6.1:*:*:*:*:*:*:*
- cpe:2.3:a:f5_networks:big-ip_advanced_waf:11.6.1:*:*:*:*:*:*:*
- cpe:2.3:h:f5_networks:big-ip_afm:11.6.1:*:*:*:*:*:*:*
- cpe:2.3:h:f5_networks:big-ip_analytics:11.6.1:*:*:*:*:*:*:*
- cpe:2.3:h:f5_networks:big-ip_apm:11.6.1:*:*:*:*:*:*:*
- cpe:2.3:h:f5_networks:big-ip_asm:11.6.1:*:*:*:*:*:*:*
- cpe:2.3:h:f5_networks:big-ip_ddhd:11.6.1:*:*:*:*:*:*:*
- cpe:2.3:h:f5_networks:big-ip_dns:11.6.1:*:*:*:*:*:*:*
- cpe:2.3:h:f5_networks:big-ip_fps:11.6.0:*:*:*:*:*:*:*
- cpe:2.3:h:f5_networks:big-ip_gtm:11.6.1:*:*:*:*:*:*:*
- cpe:2.3:h:f5_networks:big-ip_link_controller:11.6.1:*:*:*:*:*:*:*
- cpe:2.3:h:f5_networks:big-ip_pem:11.6.1:*:*:*:*:*:*:*
- cpe:2.3:h:f5_networks:big-ip_sslo:11.6.1:*:*:*:*:*:*:*
http://support.f5.com/csp/article/K72752002
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.
