F5 BIG-IP up to 12.1.4/13.1.1.4/14.1.0.1 Appliance Mode access control

Summaryinfo

A vulnerability identified as critical has been detected in F5 BIG-IP up to 12.1.4/13.1.1.4/14.1.0.1. Impacted is an unknown function of the component Appliance Mode. The manipulation leads to access control. This vulnerability is documented as CVE-2019-6614. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability, which was classified as critical, has been found in F5 BIG-IP up to 12.1.4/13.1.1.4/14.1.0.1 (Firewall Software). This issue affects some unknown functionality of the component Appliance Mode. The manipulation with an unknown input leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-264. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

On BIG-IP 14.0.0-14.1.0.1, 13.0.0-13.1.1.4, and 12.1.0-12.1.4, internal methods used to prevent arbitrary file overwrites in Appliance Mode were not fully effective. An authenticated attacker with a high privilege level may be able to bypass protections implemented in appliance mode to overwrite arbitrary system files.

The bug was discovered 05/01/2019. The weakness was released 05/03/2019 (Website). The advisory is shared at support.f5.com. The identification of this vulnerability is CVE-2019-6614 since 01/22/2019. The attack may be initiated remotely. A simple authentication is required for exploitation. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 09/12/2023). MITRE ATT&CK project uses the attack technique T1068 for this issue.

The vulnerability was handled as a non-public zero-day exploit for at least 2 days. During that time the estimated underground price was around $5k-$25k. The commercial vulnerability scanner Qualys is able to test this issue with plugin 371773 (F5 BIG-IP ASM,LTM,APM Appliance mode Privilege Escalation Vulnerability(K46524395)).

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

Entries connected to this vulnerability are available at VDB-134384, VDB-134383, VDB-134382 and VDB-134380. 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

Version

• 12.1.0
• 12.1.1
• 12.1.2
• 12.1.3
• 12.1.4
• 13.1.1.0
• 13.1.1.1
• 13.1.1.2
• 13.1.1.3
• 13.1.1.4
• 14.1.0.0
• 14.1.0.1

License

• commercial

Website

• Vendor: https://f5.com/

CPE 2.3info

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CPE 2.2info

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Entryinfo

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

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