Cloud Foundry up to 0.29.x DiffID Validator input validation

Summaryinfo

A vulnerability was found in Cloud Foundry up to 0.29.x. It has been classified as problematic. Affected is an unknown function of the component DiffID Validator. Performing a manipulation results in input validation. This vulnerability is reported as CVE-2017-14388. The attack requires a local approach. No exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Cloud Foundry up to 0.29.x (Cloud Software). This affects an unknown code block of the component DiffID Validator. The manipulation with an unknown input leads to a input validation vulnerability. CWE is classifying the issue as CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. This is going to have an impact on confidentiality, and integrity. The summary by CVE is:

Cloud Foundry Foundation GrootFS release 0.3.x versions prior to 0.30.0 do not validate DiffIDs, allowing specially crafted images to poison the grootfs volume cache. For example, this could allow an attacker to provide an image layer that GrootFS would consider to be the Ubuntu base layer.

The bug was discovered 11/09/2017. The weakness was disclosed 11/13/2017 (Website). The advisory is shared at cloudfoundry.org. This vulnerability is uniquely identified as CVE-2017-14388 since 09/12/2017. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 4 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 0.30.0 eliminates this vulnerability.

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Productinfo

Type

• Cloud Software

Name

• Cloud Foundry

Version

• 0.1
• 0.2
• 0.3
• 0.4
• 0.5
• 0.6
• 0.7
• 0.8
• 0.9
• 0.10
• 0.11
• 0.12
• 0.13
• 0.14
• 0.15
• 0.16
• 0.17
• 0.18
• 0.19
• 0.20
• 0.21
• 0.22
• 0.23
• 0.24
• 0.25
• 0.26
• 0.27
• 0.28
• 0.29

License

• free

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

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