Multiple vulnerabilities in F5 BIG-IP products

1) Arbitrary file upload

EUVDB-ID: #VU27467

Risk: Medium

CVSSv4.0: 4.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2020-5880

CWE-ID: CWE-434 - Unrestricted Upload of File with Dangerous Type

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to and error in the "restjavad" process which may expose a way to upload arbitrary files on the BIG-IP system, bypassing the authorization system. A remote authenticated attacker can upload arbitrary files, fill the disk storage and make the BIG-IP host inoperable.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

BIG-IP: 14.0.0 - 15.0.1

BIG-IP LTM: 14.0.0 - 15.0.1

BIG-IP AAM: 14.0.0 - 15.0.1

BIG-IP AFM: 14.0.0 - 15.0.1

BIG-IP Analytics: 14.0.0 - 15.0.1

BIG-IP APM: 14.0.0 - 15.0.1

BIG-IP ASM: 14.0.0 - 15.0.1

BIG-IP DNS: 14.0.0 - 15.0.1

BIG-IP FPS: 14.0.0 - 15.0.1

BIG-IP GTM: 14.0.0 - 15.0.1

BIG-IP Link Controller: 14.0.0 - 15.0.1

BIG-IP PEM: 14.0.0 - 15.0.1

CPE2.3

• cpe:2.3:h:f5_networks:big-ip:14.0.1:*:*:*:*:*:*:*
• 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_ltm:14.0.0:*:*:*:*:*:*:*
• cpe:2.3:h:f5_networks:big-ip_ltm:14.0.1:*:*:*:*:*:*:*
• cpe:2.3:h:f5_networks:big-ip_ltm:14.1.0:*:*:*:*:*:*:*
• cpe:2.3:h:f5_networks:big-ip_aam:14.0.0:*:*:*:*:*:*:*
• cpe:2.3:h:f5_networks:big-ip_aam:14.0.1:*:*:*:*:*:*:*
• cpe:2.3:h:f5_networks:big-ip_aam:14.1.0:*:*:*:*:*:*:*
• cpe:2.3:h:f5_networks:big-ip_afm:14.0.0:*:*:*:*:*:*:*
• cpe:2.3:h:f5_networks:big-ip_analytics:14.0.0:*:*:*:*:*:*:*
• cpe:2.3:h:f5_networks:big-ip_apm:14.0.0:*:*:*:*:*:*:*
• cpe:2.3:h:f5_networks:big-ip_asm:14.0.0:*:*:*:*:*:*:*
• cpe:2.3:h:f5_networks:big-ip_dns:14.0.0:*:*:*:*:*:*:*
• cpe:2.3:h:f5_networks:big-ip_fps:14.0.0:*:*:*:*:*:*:*
• cpe:2.3:h:f5_networks:big-ip_gtm:14.0.0:*:*:*:*:*:*:*
• cpe:2.3:h:f5_networks:big-ip_link_controller:14.0.0:*:*:*:*:*:*:*
• cpe:2.3:h:f5_networks:big-ip_pem:14.0.0:*:*:*:*:*:*:*

External links

https://support.f5.com/csp/article/K94325657

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

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

2) Cross-site scripting

EUVDB-ID: #VU27465

Risk: Low

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Clear]

CVE-ID: CVE-2020-5889

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Exploit availability: No

Description

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data in BIG-IP APM portal access. A remote authenticated attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

BIG-IP APM: 14.0.0 - 15.1.0

CPE2.3

• cpe:2.3:h:f5_networks:big-ip_apm:14.0.0:*:*:*:*:*:*:*
• cpe:2.3:h:f5_networks:big-ip_apm:14.0.1:*:*:*:*:*:*:*
• cpe:2.3:h:f5_networks:big-ip_apm:14.0.1.1:*:*:*:*:*:*:*

External links

https://support.f5.com/csp/article/K24415506

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

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

3) Information disclosure

EUVDB-ID: #VU27466

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: N/A

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to the BIG-IP APM system may log random data after the APM session ID in the "/var/log/apm" logs. A remote attacker can use the "ACCESS::log" command in an iRule associated with the BIG-IP APM virtual server and cause the characters logged after the APM session ID may leak random information.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

BIG-IP: 14.0.0 - 15.0.1

BIG-IP APM: 14.0.0 - 15.0.1

CPE2.3

• cpe:2.3:h:f5_networks:big-ip:14.0.1:*:*:*:*:*:*:*
• 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_apm:14.0.0:*:*:*:*:*:*:*
• cpe:2.3:h:f5_networks:big-ip_apm:14.0.1:*:*:*:*:*:*:*
• cpe:2.3:h:f5_networks:big-ip_apm:14.1.0:*:*:*:*:*:*:*

External links

https://support.f5.com/csp/article/K43404365

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.