Improper Control of Generation of Code (Code Injection) vulnerability in Apache Hive.
The vulnerability affects the Hive JDBC driver component and it can potentially lead to arbitrary code execution on the machine/endpoint that the JDBC driver (client) is running. The malicious user must have sufficient permissions to specify/edit JDBC URL(s) in an endpoint relying on the Hive JDBC driver and the JDBC client process must run under a privileged user to fully exploit the vulnerability.
The attacker can setup a malicious HTTP server and specify a JDBC URL pointing towards this server. When a JDBC connection is attempted, the malicious HTTP server can provide a special response with customized payload that can trigger the execution of certain commands in the JDBC client.This issue affects Apache Hive: from 4.0.0-alpha-1 before 4.0.0.
Users are recommended to upgrade to version 4.0.0, which fixes the issue.
The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.
When a product allows a user’s input to contain code syntax, it might be possible for an attacker to craft the code in such a way that it will alter the intended control flow of the product. Such an alteration could lead to arbitrary code execution. Injection problems encompass a wide variety of issues – all mitigated in very different ways. For this reason, the most effective way to discuss these weaknesses is to note the distinct features which classify them as injection weaknesses. The most important issue to note is that all injection problems share one thing in common – i.e., they allow for the injection of control plane data into the user-controlled data plane. This means that the execution of the process may be altered by sending code in through legitimate data channels, using no other mechanism. While buffer overflows, and many other flaws, involve the use of some further issue to gain execution, injection problems need only for the data to be parsed. The most classic instantiations of this category of weakness are SQL injection and format string vulnerabilities.