名稱: Partial String Comparison
The product performs a string comparison that only examines a portion of the string before determining whether there is a match.
一般資訊
引入方式
Implementation適用平台
程式語言
類別： Not Language-Specific (Undetermined)技術
類別： Not Technology-Specific (Undetermined)常見後果
| 範圍 | 影響 | 可能性 |
|---|---|---|
| Integrity Access Control | Alter Execution Logic, Bypass Protection Mechanism 注意：An attacker might succeed in authentication by providing a small password that matches the associated portion of the larger, correct password. |
觀察到的案例
| 參考資料 | 描述 |
|---|---|
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. |
潛在緩解措施
Phases : TestingThoroughly test the comparison scheme before deploying code into production. Perform positive testing as well as negative testing.
漏洞對應備注
理由說明 : 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.備註 : 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.
備注
This is conceptually similar to other weaknesses, such as insufficient verification and regular expression errors. It is primary to some weaknesses.提交
| 名稱 | 機構 | 日期 | 發布日期 | Version |
|---|---|---|---|---|
| PLOVER | Draft 3 |
修改記錄
| 名稱 | 機構 | 日期 | 備註 |
|---|---|---|---|
| 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 |
