F5 BIG-IP Virtual Edition up to 13.1.3.3/14.1.2.3/15.1.0.1 VLAN Group denial of service

Summaryinfo

A vulnerability has been found in F5 BIG-IP Virtual Edition up to 13.1.3.3/14.1.2.3/15.1.0.1 and classified as problematic. Affected by this issue is some unknown functionality of the component VLAN Group Handler. The manipulation leads to denial of service. This vulnerability is documented as CVE-2020-5881. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability was found in F5 BIG-IP Virtual Edition up to 13.1.3.3/14.1.2.3/15.1.0.1 (Firewall Software) and classified as problematic. This issue affects an unknown part of the component VLAN Group Handler. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is availability. The summary by CVE is:

On versions 15.0.0-15.1.0.1, 14.1.0-14.1.2.3, and 13.1.0-13.1.3.3, when the BIG-IP Virtual Edition (VE) is configured with VLAN groups and there are devices configured with OSPF connected to it, the Network Device Abstraction Layer (NDAL) Interfaces can lock up and in turn disrupting the communication between the mcpd and tmm processes.

The weakness was released 04/30/2020 (Website). The advisory is shared at support.f5.com. The identification of this vulnerability is CVE-2020-5881 since 01/06/2020. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 05/01/2020). MITRE ATT&CK project uses the attack technique T1499 for this issue.

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

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

• Firewall Software

Vendor

• F5

Name

• BIG-IP Virtual Edition

Version

• 13.1.3.0
• 13.1.3.1
• 13.1.3.2
• 13.1.3.3
• 14.1.2.0
• 14.1.2.1
• 14.1.2.2
• 14.1.2.3
• 15.1.0.0
• 15.1.0.1

License

• commercial

Website

• Vendor: https://f5.com/

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Discussion