CWE-57
Path Equivalence: 'fakedir/../realdir/filename'
2006-07-19
00h00 +00:00
00h00 +00:00
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Tên: Path Equivalence: 'fakedir/../realdir/filename'
The product contains protection mechanisms to restrict access to 'realdir/filename', but it constructs pathnames using external input in the form of 'fakedir/../realdir/filename' that are not handled by those mechanisms. This allows attackers to perform unauthorized actions against the targeted file.
Thông tin chung
Các cách xuất hiện
ImplementationNền tảng áp dụng
Ngôn ngữ
Lớp: Not Language-Specific (Undetermined)Công nghệ
Lớp: Not Technology-Specific (Undetermined)Hậu quả phổ biến
| Phạm vi | Tác động | Khả năng xảy ra |
|---|---|---|
| Confidentiality Integrity | Read Files or Directories, Modify Files or Directories |
Ví dụ đã quan sát
| Tài liệu tham khảo | Mô tả |
|---|---|
CVE-2001-1152 | Proxy allows remote attackers to bypass denylist restrictions and connect to unauthorized web servers by modifying the requested URL, including (1) a // (double slash), (2) a /SUBDIR/.. where the desired file is in the parentdir, (3) a /./, or (4) URL-encoded characters. |
CVE-2000-0191 | application check access for restricted URL before canonicalization |
CVE-2005-1366 | CGI source disclosure using "dirname/../cgi-bin" |
Các biện pháp giảm thiểu tiềm năng
Phases : ImplementationInputs should be decoded and canonicalized to the application's current internal representation before being validated (CWE-180). Make sure that the application does not decode the same input twice (CWE-174). Such errors could be used to bypass allowlist validation schemes by introducing dangerous inputs after they have been checked.
Ghi chú ánh xạ lỗ hổng
Lý do : This CWE entry is at the Variant 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.
Ghi chú
This is a manipulation that uses an injection for one consequence (containment violation using relative path) to achieve a different consequence (equivalence by alternate name).Gửi
| Tên | Tổ chức | Ngày | Ngày phát hành | Version |
|---|---|---|---|---|
| PLOVER | Draft 3 |
Sửa đổi
| Tên | Tổ chức | Ngày | Bình luận |
|---|---|---|---|
| Eric Dalci | Cigital | updated Time_of_Introduction | |
| CWE Content Team | MITRE | updated Relationships, Other_Notes, Taxonomy_Mappings | |
| CWE Content Team | MITRE | updated Description, Name, Observed_Examples, Other_Notes, Theoretical_Notes | |
| CWE Content Team | MITRE | updated Common_Consequences | |
| CWE Content Team | MITRE | updated Observed_Examples, Relationships | |
| CWE Content Team | MITRE | updated Potential_Mitigations | |
| CWE Content Team | MITRE | updated Relationships, Taxonomy_Mappings | |
| CWE Content Team | MITRE | updated Applicable_Platforms | |
| CWE Content Team | MITRE | updated Relationships | |
| CWE Content Team | MITRE | updated Observed_Examples, Potential_Mitigations | |
| CWE Content Team | MITRE | updated Description | |
| CWE Content Team | MITRE | updated Relationships | |
| CWE Content Team | MITRE | updated Mapping_Notes | |
| CWE Content Team | MITRE | updated Affected_Resources, Functional_Areas | |
| CWE Content Team | MITRE | updated Applicable_Platforms, Weakness_Ordinalities |
