Denial of service in Virtual Server implementation on some BIG-IP systems
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2020-5883 |
| CWE-ID | CWE-401 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software |
BIG-IP AAM Hardware solutions / Routers & switches, VoIP, GSM, etc BIG-IP Edge Gateway Hardware solutions / Routers & switches, VoIP, GSM, etc BIG-IP Link Controller Hardware solutions / Routers & switches, VoIP, GSM, etc BIG-IP WebAccelerator Hardware solutions / Routers & switches, VoIP, GSM, etc BIG-IP AFM 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 LTM Hardware solutions / Security hardware applicances BIG-IP PEM Hardware solutions / Security hardware applicances |
| Vendor | F5 Networks |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
1) Memory leak
EUVDB-ID: #VU49042
Risk: Medium
CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]
CVE-ID: CVE-2020-5883
CWE-ID:
CWE-401 - Missing release of memory after effective lifetime
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform DoS attack on the target system.
The vulnerability exists due memory leak when processing POST requests on HTTP Explicit Proxy Virtual Server with configured HTTP_PROXY_REQUEST iRule. A remote attacker can send a specially crafted HTTP request to the virtual server and perform a denial of service (DoS) attack.
Install updates from vendor's website.
Vulnerable software versionsBIG-IP AAM: 13.1.0 - 15.0.1.0.48.11 ENG Hotfix
BIG-IP AFM: 13.1.0 - 15.0.1.0.48.11 ENG Hotfix
BIG-IP APM: 13.1.0 - 15.0.1.0.48.11 ENG Hotfix
BIG-IP ASM: 13.1.0 - 15.0.1.0.48.11 ENG Hotfix
BIG-IP Edge Gateway: 13.1.0 - 15.0.1
BIG-IP FPS: 13.1.0 - 15.0.1.0.48.11 ENG Hotfix
BIG-IP LTM: 13.1.0 - 15.0.1.0.48.11-ENG Hotfix
BIG-IP Link Controller: 13.1.0 - 15.0.1.0.48.11-ENG Hotfix
BIG-IP PEM: 13.1.0 - 15.0.1.0.48.11-ENG Hotfix
BIG-IP WebAccelerator: 13.1.0 - 15.0.1
CPE2.3- cpe:2.3:h:f5_networks:big-ip_aam:13.1.0:*:*:*:*:*:*:*
- cpe:2.3:h:f5_networks:big-ip_aam:13.1.0.1:*:*:*:*:*:*:*
- cpe:2.3:h:f5_networks:big-ip_aam:13.1.0.2:*:*:*:*:*:*:*
- cpe:2.3:h:f5_networks:big-ip_afm:13.1.0:*:*:*:*:*:*:*
- cpe:2.3:h:f5_networks:big-ip_afm:13.1.0.1:*:*:*:*:*:*:*
- cpe:2.3:h:f5_networks:big-ip_afm:13.1.0.2:*:*:*:*:*:*:*
- cpe:2.3:h:f5_networks:big-ip_apm:13.1.0:*:*:*:*:*:*:*
- cpe:2.3:h:f5_networks:big-ip_apm:13.1.0.1:*:*:*:*:*:*:*
- cpe:2.3:h:f5_networks:big-ip_apm:13.1.0.2:*:*:*:*:*:*:*
- cpe:2.3:h:f5_networks:big-ip_asm:13.1.0:*:*:*:*:*:*:*
- cpe:2.3:h:f5_networks:big-ip_edge_gateway:13.1.0:*:*:*:*:*:*:*
- cpe:2.3:h:f5_networks:big-ip_fps:13.1.0:*:*:*:*:*:*:*
- cpe:2.3:h:f5_networks:big-ip_ltm:13.1.0:*:*:*:*:*:*:*
- cpe:2.3:h:f5_networks:big-ip_link_controller:13.1.0:*:*:*:*:*:*:*
- cpe:2.3:h:f5_networks:big-ip_pem:13.1.0:*:*:*:*:*:*:*
- cpe:2.3:h:f5_networks:big-ip_webaccelerator:13.1.0:*:*:*:*:*:*:*
https://support.f5.com/csp/article/K12234501
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
How the attacker can exploit this vulnerability?
The attacker would have to send a specially crafted request to the affected device in order to exploit this vulnerability.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
