CWE-187
Partial String Comparison
2006-07-19
00h00 +00:00
00h00 +00:00
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Tên: Partial String Comparison
The product performs a string comparison that only examines a portion of the string before determining whether there is a match.
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 |
|---|---|---|
| Integrity Access Control | Alter Execution Logic, Bypass Protection Mechanism Ghi chú: An attacker might succeed in authentication by providing a small password that matches the associated portion of the larger, correct password. |
Ví dụ đã quan sát
| Tài liệu tham khảo | Mô tả |
|---|---|
CVE-2014-6394 | Product does not prevent access to restricted directories due to partial string comparison with a public directory |
CVE-2004-1012 | Argument parser of an IMAP server treats a partial command "body[p" as if it is "body.peek", leading to index error and out-of-bounds corruption. |
CVE-2004-0765 | Web browser only checks the hostname portion of a certificate when the hostname portion of the URI is not a fully qualified domain name (FQDN), which allows remote attackers to spoof trusted certificates. |
CVE-2002-1374 | One-character password by attacker checks only against first character of real password. |
CVE-2000-0979 | The password is not properly checked, which allows remote attackers to bypass access controls by sending a 1-character password that matches the first character of the real password. |
Các biện pháp giảm thiểu tiềm năng
Phases : TestingThoroughly test the comparison scheme before deploying code into production. Perform positive testing as well as negative testing.
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 conceptually similar to other weaknesses, such as insufficient verification and regular expression errors. It is primary to some weaknesses.Gửi
| Tên | Tổ chức | Ngày | Ngày phát hành | Version |
|---|---|---|---|---|
| PLOVER | Draft 3 |
Sửa đổi
| Tên | Tổ chức | Ngày | Bình luận |
|---|---|---|---|
| Eric Dalci | Cigital | updated Potential_Mitigations, Time_of_Introduction | |
| CWE Content Team | MITRE | updated Description, Relationships, Other_Notes, Taxonomy_Mappings, Weakness_Ordinalities | |
| CWE Content Team | MITRE | updated Demonstrative_Examples, Observed_Examples, Other_Notes, Relationship_Notes | |
| CWE Content Team | MITRE | updated Relationships | |
| CWE Content Team | MITRE | updated Common_Consequences, Demonstrative_Examples | |
| CWE Content Team | MITRE | updated Common_Consequences | |
| CWE Content Team | MITRE | updated Relationships | |
| CWE Content Team | MITRE | updated Potential_Mitigations | |
| CWE Content Team | MITRE | updated Relationships | |
| CWE Content Team | MITRE | updated Applicable_Platforms | |
| CWE Content Team | MITRE | updated Name, Observed_Examples, Relationships, Type | |
| CWE Content Team | MITRE | updated Relationships | |
| CWE Content Team | MITRE | updated Relationships | |
| CWE Content Team | MITRE | updated Description | |
| CWE Content Team | MITRE | updated Relationships | |
| CWE Content Team | MITRE | updated Mapping_Notes | |
| CWE Content Team | MITRE | updated Applicable_Platforms | |
| CWE Content Team | MITRE | updated Common_Consequences, Description, Observed_Examples |
