F5 BIG-IP up to 14.1.2.3/15.0.1.3 restjavad unrestricted upload

Summaryinfo

A vulnerability, which was classified as critical, was found in F5 BIG-IP up to 14.1.2.3/15.0.1.3. Affected by this vulnerability is an unknown functionality of the component restjavad. Executing a manipulation can lead to unrestricted upload. This vulnerability is registered as CVE-2020-5880. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability has been found in F5 BIG-IP up to 14.1.2.3/15.0.1.3 (Firewall Software) and classified as critical. This vulnerability affects some unknown functionality of the component restjavad. The manipulation with an unknown input leads to a unrestricted upload vulnerability. The CWE definition for the vulnerability is CWE-434. The product allows the attacker to upload or transfer files of dangerous types that can be automatically processed within the product's environment. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Om BIG-IP 15.0.0-15.0.1.3 and 14.1.0-14.1.2.3, the restjavad process may expose a way for attackers to upload arbitrary files on the BIG-IP system, bypassing the authorization system. Resulting error messages may also reveal internal paths of the server.

The weakness was published 04/30/2020 (Website). The advisory is shared for download at support.f5.com. This vulnerability was named CVE-2020-5880 since 01/06/2020. The exploitation appears to be easy. The attack can be initiated remotely. A single authentication is required for exploitation. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 05/01/2020). The MITRE ATT&CK project declares the attack technique as T1608.002.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Similar entries are available at VDB-154664, VDB-154663, VDB-154662 and VDB-154658. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

• Firewall Software

Vendor

• F5

Name

• BIG-IP

Version

• 14.1.2.0
• 14.1.2.1
• 14.1.2.2
• 14.1.2.3
• 15.0.1.0
• 15.0.1.1
• 15.0.1.2
• 15.0.1.3

License

• commercial

Website

• Vendor: https://f5.com/

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Once again VulDB remains the best source for vulnerability data.

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