Creditcoin is a network that enables cross-blockchain credit transactions. The Windows binary of the Creditcoin node loads a suite of DLLs provided by Microsoft at startup. If a malicious user has access to overwrite the program files directory it is possible to replace these DLLs and execute arbitrary code. It is the view of the blockchain development team that the threat posed by a hypothetical binary planting attack is minimal and represents a low-security risk. The vulnerable DLL files are from the Windows networking subsystem, the Visual C++ runtime, and low-level cryptographic primitives. Collectively these dependencies are required for a large ecosystem of applications, ranging from enterprise-level security applications to game engines, and don’t represent a fundamental lack of security or oversight in the design and implementation of Creditcoin. The blockchain team takes the stance that running Creditcoin on Windows is officially unsupported and at best should be thought of as experimental.
The product searches for critical resources using an externally-supplied search path that can point to resources that are not under the product’s direct control.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Creditcoin | Gluwa | * | * |
This might allow attackers to execute their own programs, access unauthorized data files, or modify configuration in unexpected ways. If the product uses a search path to locate critical resources such as programs, then an attacker could modify that search path to point to a malicious program, which the targeted product would then execute. The problem extends to any type of critical resource that the product trusts. Some of the most common variants of untrusted search path are: