Pivotal Application Service up to 2.2.11/2.3.6/2.4.2 Cloud Controller Proxy certificate validation

Summaryinfo

A vulnerability identified as critical has been detected in Pivotal Application Service up to 2.2.11/2.3.6/2.4.2. Impacted is an unknown function of the component Cloud Controller Proxy. This manipulation causes certificate validation. This vulnerability is registered as CVE-2019-3777. Remote exploitation of the attack is possible. No exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in Pivotal Application Service up to 2.2.11/2.3.6/2.4.2. Affected by this vulnerability is some unknown functionality of the component Cloud Controller Proxy. The manipulation with an unknown input leads to a certificate validation vulnerability. The CWE definition for the vulnerability is CWE-295. The product does not validate, or incorrectly validates, a certificate. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Pivotal Application Service (PAS), versions 2.2.x prior to 2.2.12, 2.3.x prior to 2.3.7 and 2.4.x prior to 2.4.3, contain apps manager that uses a cloud controller proxy that fails to verify SSL certs. A remote unauthenticated attacker that could hijack the Cloud Controller's DNS record could intercept access tokens sent to the Cloud Controller, giving the attacker access to the user's resources in the Cloud Controller

The bug was discovered 02/26/2019. The weakness was published 03/07/2019 (Website). It is possible to read the advisory at pivotal.io. This vulnerability is known as CVE-2019-3777 since 01/03/2019. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1587.003 according to MITRE ATT&CK.

The vulnerability was handled as a non-public zero-day exploit for at least 9 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 2.2.12, 2.3.7 or 2.4.3 eliminates this vulnerability.

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Productinfo

Vendor

• Pivotal

Name

• Application Service

Version

• 2.2.0
• 2.2.1
• 2.2.2
• 2.2.3
• 2.2.4
• 2.2.5
• 2.2.6
• 2.2.7
• 2.2.8
• 2.2.9
• 2.2.10
• 2.2.11
• 2.3.0
• 2.3.1
• 2.3.2
• 2.3.3
• 2.3.4
• 2.3.5
• 2.3.6
• 2.4.0
• 2.4.1
• 2.4.2

License

• commercial

Website

• Vendor: https://pivotal.io/

CPE 2.3info

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CPE 2.2info

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