DLL injection in Veeam Agent for Windows can occur if the systems PATH variable includes insecure locations. When the agent runs, it searches these directories for necessary DLLs. If an attacker places a malicious DLL in one of these directories, the Veeam Agent might load it inadvertently, allowing the attacker to execute harmful code. This could lead to unauthorized access, data theft, or disruption of services
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.
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: