CWE-76 상세 정보

The product correctly neutralizes certain special elements, but it improperly neutralizes equivalent special elements.

The product may have a fixed list of special characters it believes is complete. However, there may be alternate encodings, or representations that also have the same meaning. For example, the product may filter out a leading slash (/) to prevent absolute path names, but does not account for a tilde (~) followed by a user name, which on some *nix systems could be expanded to an absolute pathname. Alternately, the product might filter a dangerous "-e" command-line switch when calling an external program, but it might not account for "--exec" or other switches that have the same semantics.

취약점 도입 방식

Implementation : REALIZATION: This weakness is caused during implementation of an architectural security tactic.

적용 가능한 플랫폼

언어

클래스: Not Language-Specific (Undetermined)

일반적인 결과

잠재적 완화 방법

Phases : Requirements
Programming languages and supporting technologies might be chosen which are not subject to these issues.
Phases : Implementation
Utilize an appropriate mix of allowlist and denylist parsing to filter equivalent special element syntax from all input.

취약점 매핑 메모

근거 : 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.
댓글 : 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.

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