F5 BIG-IP up to 11.6.4/12.1.4.1/13.1.1.4/14.0.0.4/14.1.0.5 Appliance Mode access control

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.1$0-$5k0.00

A vulnerability has been found in F5 BIG-IP up to 11.6.4/12.1.4.1/13.1.1.4/14.0.0.4/14.1.0.5 (Firewall Software) and classified as critical. Affected by this vulnerability is an unknown code block of the component Appliance Mode. The manipulation with an unknown input leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-264. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

On BIG-IP 14.1.0-14.1.0.5, 14.0.0-14.0.0.4, 13.0.0-13.1.1.4, 12.1.0-12.1.4.1, and 11.5.1-11.6.4, when the BIG-IP system is licensed with Appliance mode, user accounts with Administrator and Resource Administrator roles can bypass Appliance mode restrictions.

The weakness was disclosed 07/03/2019 (Website). The advisory is shared at support.f5.com. This vulnerability is known as CVE-2019-6633 since 01/22/2019. The exploitation appears to be easy. An attack has to be approached locally. The exploitation doesn't need any form of authentication. 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 10/17/2023). MITRE ATT&CK project uses the attack technique T1068 for this issue.

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

The entries VDB-137319, VDB-137318, VDB-137316 and VDB-137315 are pretty similar.

Productinfo

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Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.1
VulDB Meta Temp Score: 5.1

VulDB Base Score: 4.2
VulDB Temp Score: 4.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.0
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Access control
CWE: CWE-264
CAPEC: 🔍
ATT&CK: 🔍

Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/22/2019 🔍
07/03/2019 +162 days 🔍
07/04/2019 +1 days 🔍
10/17/2023 +1566 days 🔍

Sourcesinfo

Vendor: f5.com

Advisory: K73522927
Status: Not defined
Confirmation: 🔍

CVE: CVE-2019-6633 (🔍)
SecurityFocus: 109113

See also: 🔍

Entryinfo

Created: 07/04/2019 11:32 AM
Updated: 10/17/2023 09:56 AM
Changes: 07/04/2019 11:32 AM (56), 07/01/2020 08:28 AM (1), 10/17/2023 09:56 AM (4)
Complete: 🔍
Cache ID: 18:68E:40

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