Remote code execution in BIND in multiple F5 BIG-IP products



Risk High
Patch available NO
Number of vulnerabilities 1
CVE-ID CVE-2020-8625
CWE-ID CWE-119
Exploitation vector Network
Public exploit N/A
Vulnerable software
BIG-IQ Centralized Management
Server applications / Remote management servers, RDP, SSH

BIG-IP DNS
Hardware solutions / Routers & switches, VoIP, GSM, etc

BIG-IP Link Controller
Hardware solutions / Routers & switches, VoIP, GSM, etc

BIG-IP AAM
Hardware solutions / Routers & switches, VoIP, GSM, etc

BIG-IP SSLO
Hardware solutions / Firmware

BIG-IP DDHD
Hardware solutions / Firmware

BIG-IP
Hardware solutions / Firmware

BIG-IP PEM
Hardware solutions / Security hardware applicances

BIG-IP GTM
Hardware solutions / Security hardware applicances

BIG-IP FPS
Hardware solutions / Security hardware applicances

BIG-IP ASM
Hardware solutions / Security hardware applicances

BIG-IP Analytics
Hardware solutions / Security hardware applicances

BIG-IP AFM
Hardware solutions / Security hardware applicances

BIG-IP LTM
Hardware solutions / Security hardware applicances

BIG-IP APM
Hardware solutions / Security hardware applicances

BIG-IP Advanced WAF
Client/Desktop applications / Antivirus software/Personal firewalls

Vendor F5 Networks

Security Bulletin

This security bulletin contains one high risk vulnerability.

1) Buffer overflow

EUVDB-ID: #VU50780

Risk: High

CVSSv4.0: 7.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2020-8625

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error within the SPNEGO implementation in the GSS-TSIG extension. A remote attacker can send a specially crafted DNS request to the server, trigger memory corruption and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

BIG-IQ Centralized Management: 6.0.0 - 8.0.0

BIG-IP DNS: 11.6.1 - 16.0.1.1

BIG-IP SSLO: 11.6.1 - 16.0.1.1

BIG-IP PEM: 11.6.1 HF1 - 16.0.1.1

BIG-IP Link Controller: 11.6.1 HF1 - 16.0.1.1

BIG-IP GTM: 11.6.1 HF1 - 16.0.1.1

BIG-IP FPS: 11.6.1 - 16.0.1.1

BIG-IP DDHD: 11.6.1 - 16.0.1.1

BIG-IP ASM: 11.6.1 HF1 - 16.0.1.1

BIG-IP Analytics: 11.6.1 HF1 - 16.0.1.1

BIG-IP AFM: 11.6.1 HF1 - 16.0.1.1

BIG-IP Advanced WAF: 11.6.1 - 16.0.1.1

BIG-IP AAM: 11.6.1 HF1 - 16.0.1.1

BIG-IP LTM: 11.6.1 HF1 - 16.0.1.1

BIG-IP: 11.6.1 HF1 - 16.0.1.1

BIG-IP APM: 11.6.1 HF1 - 16.0.1.1

CPE2.3 External links

http://support.f5.com/csp/article/K13591074


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 application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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