Privilege escalation in F5 BIG-IP
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2016-9256 |
| CWE-ID | CWE-362 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software |
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 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 LTM Hardware solutions / Security hardware applicances BIG-IP PEM Hardware solutions / Security hardware applicances BIG-IP WebSafe Server applications / Server solutions for antivurus protection |
| Vendor | F5 Networks |
Security Bulletin
This security bulletin contains one low risk vulnerability.
1) Race condition
EUVDB-ID: #VU6527
Risk: Low
CVSSv4.0: 1.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2016-9256
Exploit availability: No
DescriptionThe vulnerability allows a remote authenticated user to gain elevated privileges on the target system.
The weakness exists due to race condition during the enforcement of permissions by the iControl component when permissions are assigned to a user and the role_map feature is not reloaded between the time permissions are changed and the user's next change request. A remote attacker can gain elevated privileges and conduct further attacks.
Successful exploitation of the vulnerability may result in access to the system.
Install update from vendor's website.
BIG-IP AAM:
BIG-IP AAM: 12.0.0 - 12.1.2
BIG-IP AFM: 12.0.0 - 12.1.2
BIG-IP Analytics: 12.0.0 - 12.1.2
BIG-IP APM: 12.0 HF1 - 12.1.2
BIG-IP ASM: 12.0.0 - 12.1.2
BIG-IP DNS: 12.0.0 - 12.1.2
BIG-IP Link Controller: 12.0.0 - 12.1.2
BIG-IP LTM: 12.0.0 - 12.1.2
BIG-IP PEM: 12.0.0 - 12.1.2
BIG-IP WebSafe: 12.0 - 12.1.2
CPE2.3- cpe:2.3:h:f5_networks:big-ip_aam::*:*:*:*:*:*:*
- cpe:2.3:h:f5_networks:big-ip_aam:12.0.0:*:*:*:*:*:*:*
- cpe:2.3:h:f5_networks:big-ip_aam:12.0.0:HF1:*:*:*:*:*:*
- cpe:2.3:h:f5_networks:big-ip_aam:12.0.0:HF3:*:*:*:*:*:*
- cpe:2.3:h:f5_networks:big-ip_afm:12.0.0:*:*:*:*:*:*:*
- cpe:2.3:h:f5_networks:big-ip_afm:12.0.0:HF1:*:*:*:*:*:*
- cpe:2.3:h:f5_networks:big-ip_afm:12.0.0:HF3:*:*:*:*:*:*
- cpe:2.3:h:f5_networks:big-ip_analytics:12.0.0:*:*:*:*:*:*:*
- cpe:2.3:h:f5_networks:big-ip_analytics:12.0.0 HF1:*:*:*:*:*:*:*
- cpe:2.3:h:f5_networks:big-ip_analytics:12.0.0 HF3:*:*:*:*:*:*:*
- cpe:2.3:h:f5_networks:big-ip_apm:12.0:HF1:*:*:*:*:*:*
- cpe:2.3:h:f5_networks:big-ip_asm:12.0.0:*:*:*:*:*:*:*
- cpe:2.3:h:f5_networks:big-ip_dns:12.0.0:*:*:*:*:*:*:*
- cpe:2.3:h:f5_networks:big-ip_link_controller:12.0.0:*:*:*:*:*:*:*
- cpe:2.3:h:f5_networks:big-ip_ltm:12.0.0:*:*:*:*:*:*:*
- cpe:2.3:h:f5_networks:big-ip_pem:12.0.0:*:*:*:*:*:*:*
- cpe:2.3:a:f5_networks:big-ip_websafe:12.0:*:*:*:*:*:*:*
https://support.f5.com/csp/article/K47284724
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated user 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.
