Chi tiết CWE-619

The product does not close a database cursor properly, leaving the cursor "dangling."

Chi tiết nền tảng

Các cách xuất hiện

Implementation : This issue is currently reported for unhandled exceptions, but it is theoretically possible any time the programmer does not close the cursor at the proper time.

Nền tảng áp dụng

Ngôn ngữ

Tên: SQL (Undetermined)

Công nghệ

Tên: Database Server (Undetermined)

Hậu quả phổ biến

Các biện pháp giảm thiểu tiềm năng

Phases : Implementation
Close cursors immediately after access to them is complete. Ensure that you close cursors if exceptions occur.

Phương pháp phát hiện

Automated Static Analysis

Automated static analysis, commonly referred to as Static Application Security Testing (SAST), can find some instances of this weakness by analyzing source code (or binary/compiled code) without having to execute it. Typically, this is done by building a model of data flow and control flow, then searching for potentially-vulnerable patterns that connect "sources" (origins of input) with "sinks" (destinations where the data interacts with external components, a lower layer such as the OS, etc.)

Ghi chú ánh xạ lỗ hổng

Lý do : This CWE entry is at the Base level of abstraction, which is a preferred level of abstraction for mapping to the root causes of vulnerabilities.
Bình luận : Carefully read both the name and description to ensure that this mapping is an appropriate fit. Do not try to 'force' a mapping to a lower-level Base/Variant simply to comply with this preferred level of abstraction.

Tài liệu tham khảo

REF-505

The Oracle Hacker's Handbook
David Litchfield.

REF-506

Cursor Injection
David Litchfield.
http://www.davidlitchfield.com/cursor-injection.pdf

Gửi

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