Pivotal Concourse access control

Summaryinfo

A vulnerability was found in Pivotal Concourse and classified as critical. This affects an unknown part. The manipulation results in access control. This vulnerability was named CVE-2018-1227. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability was found in Pivotal Concourse (the affected version is unknown). It has been classified as critical. Affected is an unknown code. The manipulation with an unknown input leads to a access control vulnerability. CWE is classifying the issue as CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Pivotal Concourse after 2018-03-05 might allow remote attackers to have an unspecified impact, if a customer obtained the Concourse software from a DNS domain that is no longer controlled by Pivotal. The original domain for the Concourse CI (concourse-dot-ci) open source project has been registered by an unknown actor, and is therefore no longer the official website for Concourse CI. The new official domain is concourse-ci.org. At approximately 4 am EDT on March 7, 2018 the Concourse OSS team began receiving reports that the Concourse domain was not responding. The Concourse OSS team discovered, upon investigation with both the original and the new domain registrars, that the originating domain registrar had made the domain available for purchase. This was done despite the domain being renewed by the Concourse OSS team through August 2018. For a customer to be affected, they would have needed to access a download from a "concourse-dot-ci" domain web site after March 6, 2018 18:00:00 EST. Accessing that domain is NOT recommended by Pivotal. Anyone who had been using that domain should immediately begin using the concourse-ci.org domain instead. Customers can also safely access Concourse software from the traditionally available locations on the Pivotal Network or GitHub.

The bug was discovered 03/09/2018. The weakness was presented 03/13/2018 (Website). The advisory is shared for download at pivotal.io. This vulnerability is traded as CVE-2018-1227 since 12/06/2017. It is possible to launch the attack remotely. Additional levels of successful authentication are necessary for exploitation. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1068.

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.

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

Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

• Pivotal

Name

• Concourse

License

• commercial

Website

• Vendor: https://pivotal.io/

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Once again VulDB remains the best source for vulnerability data.

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