A vulnerability, which was classified as critical, has been found in Docker Notary (Virtualization Software). Affected by this issue is the function checkRoot of the file gotuf/client/client.go of the component Comment Handler. The manipulation with an unknown input leads to a unrestricted upload vulnerability. Using CWE to declare the problem leads to CWE-434. The product allows the attacker to upload or transfer files of dangerous types that can be automatically processed within the product's environment. Impacted is confidentiality, integrity, and availability. CVE summarizes:

In Docker Notary before 0.1, the checkRoot function in gotuf/client/client.go does not check expiry of root.json files, despite a comment stating that it does. Even if a user creates a new root.json file after a key compromise, an attacker can produce update files referring to an old root.json file.

The bug was discovered 07/31/2015. The weakness was published 03/31/2018 (Website). The advisory is available at docs.docker.com. This vulnerability is handled as CVE-2015-9259 since 03/31/2018. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1608.002 by the MITRE ATT&CK project.

The vulnerability was handled as a non-public zero-day exploit for at least 974 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 0.1 eliminates this vulnerability.

Similar entry is available at 115489.

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• Virtualization Software

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• Docker Notary

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