medium
4.3
CWE
434
Advisory Published
Updated

CVE-2021-23001: Malicious File Upload

First published: Wed Mar 31 2021(Updated: )

On versions 16.0.x before 16.0.1.1, 15.1.x before 15.1.2.1, 14.1.x before 14.1.4, 13.1.x before 13.1.3.6, 12.1.x before 12.1.5.3, and 11.6.x before 11.6.5.3, the upload functionality in BIG-IP Advanced WAF and BIG-IP ASM allows an authenticated user to upload files to the BIG-IP system using a call to an undisclosed iControl REST endpoint. Note: Software versions which have reached End of Software Development (EoSD) are not evaluated.

Credit: f5sirt@f5.com

Affected SoftwareAffected VersionHow to fix
F5 Access Policy Manager>=11.6.1<11.6.5.3
F5 Access Policy Manager>=12.1.0<12.1.5.3
F5 Access Policy Manager>=13.1.0<13.1.3.6
F5 Access Policy Manager>=14.1.0<14.1.4
F5 Access Policy Manager>=15.1.0<15.1.2.1
F5 Access Policy Manager>=16.0.0<16.0.1.1
F5 BIG-IP Advanced Firewall Manager>=11.6.1<11.6.5.3
F5 BIG-IP Advanced Firewall Manager>=12.1.0<12.1.5.3
F5 BIG-IP Advanced Firewall Manager>=13.1.0<13.1.3.6
F5 BIG-IP Advanced Firewall Manager>=14.1.0<14.1.4
F5 BIG-IP Advanced Firewall Manager>=15.1.0<15.1.2.1
F5 BIG-IP Advanced Firewall Manager>=16.0.0<16.0.1.1
F5 BIG-IP Advanced WAF/ASM>=11.6.1<11.6.5.3
F5 BIG-IP Advanced WAF/ASM>=12.1.0<12.1.5.3
F5 BIG-IP Advanced WAF/ASM>=13.1.0<13.1.3.6
F5 BIG-IP Advanced WAF/ASM>=14.1.0<14.1.4
F5 BIG-IP Advanced WAF/ASM>=15.1.0<15.1.2.1
F5 BIG-IP Advanced WAF/ASM>=16.0.0<16.0.1.1
F5 BIG-IP Analytics>=11.6.1<11.6.5.3
F5 BIG-IP Analytics>=12.1.0<12.1.5.3
F5 BIG-IP Analytics>=13.1.0<13.1.3.6
F5 BIG-IP Analytics>=14.1.0<14.1.4
F5 BIG-IP Analytics>=15.1.0<15.1.2.1
F5 BIG-IP Analytics>=16.0.0<16.0.1.1
F5 BIG-IP Application Acceleration Manager>=11.6.1<11.6.5.3
F5 BIG-IP Application Acceleration Manager>=12.1.0<12.1.5.3
F5 BIG-IP Application Acceleration Manager>=13.1.0<13.1.3.6
F5 BIG-IP Application Acceleration Manager>=14.1.0<14.1.4
F5 BIG-IP Application Acceleration Manager>=15.1.0<15.1.2.1
F5 BIG-IP Application Acceleration Manager>=16.0.0<16.0.1.1
F5 Application Security Manager>=11.6.1<11.6.5.3
F5 Application Security Manager>=12.1.0<12.1.5.3
F5 Application Security Manager>=13.1.0<13.1.3.6
F5 Application Security Manager>=14.1.0<14.1.4
F5 Application Security Manager>=15.1.0<15.1.2.1
F5 Application Security Manager>=16.0.0<16.0.1.1
F5 BIG-IP DDoS Hybrid Defender>=11.6.1<11.6.5.3
F5 BIG-IP DDoS Hybrid Defender>=12.1.0<12.1.5.3
F5 BIG-IP DDoS Hybrid Defender>=13.1.0<13.1.3.6
F5 BIG-IP DDoS Hybrid Defender>=14.1.0<14.1.4
F5 BIG-IP DDoS Hybrid Defender>=15.1.0<15.1.2.1
F5 BIG-IP DDoS Hybrid Defender>=16.0.0<16.0.1.1
F5 BIG-IP>=11.6.1<11.6.5.3
F5 BIG-IP>=12.1.0<12.1.5.3
F5 BIG-IP>=13.1.0<13.1.3.6
F5 BIG-IP>=14.1.0<14.1.4
F5 BIG-IP>=15.1.0<15.1.2.1
F5 BIG-IP>=16.0.0<16.0.1.1
F5 BIG-IP Fraud Protection Service>=11.6.1<11.6.5.3
F5 BIG-IP Fraud Protection Service>=12.1.0<12.1.5.3
F5 BIG-IP Fraud Protection Service>=13.1.0<13.1.3.6
F5 BIG-IP Fraud Protection Service>=14.1.0<14.1.4
F5 BIG-IP Fraud Protection Service>=15.1.0<15.1.2.1
F5 BIG-IP Fraud Protection Service>=16.0.0<16.0.1.1
Riverbed SteelApp Traffic Manager>=11.6.1<11.6.5.3
Riverbed SteelApp Traffic Manager>=12.1.0<12.1.5.3
Riverbed SteelApp Traffic Manager>=13.1.0<13.1.3.6
Riverbed SteelApp Traffic Manager>=14.1.0<14.1.4
Riverbed SteelApp Traffic Manager>=15.1.0<15.1.2.1
Riverbed SteelApp Traffic Manager>=16.0.0<16.0.1.1
F5 BIG-IP Link Controller>=11.6.1<11.6.5.3
F5 BIG-IP Link Controller>=12.1.0<12.1.5.3
F5 BIG-IP Link Controller>=13.1.0<13.1.3.6
F5 BIG-IP Link Controller>=14.1.0<14.1.4
F5 BIG-IP Link Controller>=15.1.0<15.1.2.1
F5 BIG-IP Link Controller>=16.0.0<16.0.1.1
Riverbed SteelApp Traffic Manager>=11.6.1<11.6.5.3
Riverbed SteelApp Traffic Manager>=12.1.0<12.1.5.3
Riverbed SteelApp Traffic Manager>=13.1.0<13.1.3.6
Riverbed SteelApp Traffic Manager>=14.1.0<14.1.4
Riverbed SteelApp Traffic Manager>=15.1.0<15.1.2.1
Riverbed SteelApp Traffic Manager>=16.0.0<16.0.1.1
F5 BIG-IP Policy Enforcement Manager>=11.6.1<11.6.5.3
F5 BIG-IP Policy Enforcement Manager>=12.1.0<12.1.5.3
F5 BIG-IP Policy Enforcement Manager>=13.1.0<13.1.3.6
F5 BIG-IP Policy Enforcement Manager>=14.1.0<14.1.4
F5 BIG-IP Policy Enforcement Manager>=15.1.0<15.1.2.1
F5 BIG-IP Policy Enforcement Manager>=16.0.0<16.0.1.1
F5 BIG-IP SSL Orchestrator>=11.6.1<11.6.5.3
F5 BIG-IP SSL Orchestrator>=12.1.0<12.1.5.3
F5 BIG-IP SSL Orchestrator>=13.1.0<13.1.3.6
F5 BIG-IP SSL Orchestrator>=14.1.0<14.1.4
F5 BIG-IP SSL Orchestrator>=15.1.0<15.1.2.1
F5 BIG-IP SSL Orchestrator>=16.0.0<16.0.1.1

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2021-23001?

    CVE-2021-23001 has a high severity rating due to its potential for allowing authenticated users to upload arbitrary files.

  • How do I fix CVE-2021-23001?

    To fix CVE-2021-23001, upgrade your F5 BIG-IP software to the latest version recommended by F5, specifically versions 16.0.1.1 or later.

  • What versions are affected by CVE-2021-23001?

    CVE-2021-23001 affects F5 BIG-IP versions before 16.0.1.1, 15.1.2.1, 14.1.4, 13.1.3.6, 12.1.5.3, and 11.6.5.3.

  • Who can exploit CVE-2021-23001?

    CVE-2021-23001 can be exploited by any authenticated user with access to the upload functionality of the affected F5 BIG-IP systems.

  • What happens if CVE-2021-23001 is exploited?

    Exploiting CVE-2021-23001 can allow an attacker to upload malicious files, leading to potential unauthorized access or further attacks within the system.

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