CWE-69
Improper Handling of Windows ::DATA Alternate Data Stream
2006-07-19
00h00 +00:00
00h00 +00:00
指定 CWE 通知
掌握特定 CWE 的任何變更。
名稱: Improper Handling of Windows ::DATA Alternate Data Stream
The product does not properly prevent access to, or detect usage of, alternate data streams (ADS).
一般資訊
背景詳情
引入方式
Implementation適用平台
程式語言
類別： Not Language-Specific (Undetermined)作業系統
類別： Windows (Undetermined)常見後果
| 範圍 | 影響 | 可能性 |
|---|---|---|
| Access Control Non-Repudiation Other | Bypass Protection Mechanism, Hide Activities, Other 注意：An attacker can use an ADS to hide information about a file (e.g. size, the name of the process) from a system or file browser tools such as Windows Explorer and 'dir' at the command line utility. Alternately, the attacker might be able to bypass intended access restrictions for the associated data fork. |
觀察到的案例
| 參考資料 | 描述 |
|---|---|
CVE-1999-0278 | In IIS, remote attackers can obtain source code for ASP files by appending "::$DATA" to the URL. |
CVE-2000-0927 | Product does not properly record file sizes if they are stored in alternative data streams, which allows users to bypass quota restrictions. |
潛在緩解措施
Phases : ImplementationEnsure that the source code correctly parses the filename to read or write to the correct stream.
偵測方法
Automated Analysis
Software tools are capable of finding ADSs on your system.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.
相關攻擊模式
| CAPEC ID | 攻擊模式名稱 |
|---|---|
| CAPEC-168 | Windows ::DATA Alternate Data Stream
An attacker exploits the functionality of Microsoft NTFS Alternate Data Streams (ADS) to undermine system security. ADS allows multiple "files" to be stored in one directory entry referenced as filename:streamname. One or more alternate data streams may be stored in any file or directory. Normal Microsoft utilities do not show the presence of an ADS stream attached to a file. The additional space for the ADS is not recorded in the displayed file size. The additional space for ADS is accounted for in the used space on the volume. An ADS can be any type of file. ADS are copied by standard Microsoft utilities between NTFS volumes. ADS can be used by an attacker or intruder to hide tools, scripts, and data from detection by normal system utilities. Many anti-virus programs do not check for or scan ADS. Windows Vista does have a switch (-R) on the command line DIR command that will display alternate streams. |
備注
This and similar problems exist because the same resource can have multiple identifiers that dictate which behavior can be performed on the resource.參考資料
REF-562
Windows NTFS Alternate Data StreamsDon Parker.
https://seclists.org/basics/2005/Feb/312
REF-7
Writing Secure CodeMichael Howard, David LeBlanc.
https://www.microsoftpressstore.com/store/writing-secure-code-9780735617223
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 Time_of_Introduction | |
| CWE Content Team | MITRE | updated Applicable_Platforms, Background_Details, Description, Relationships, Other_Notes, References, Taxonomy_Mappings | |
| CWE Content Team | MITRE | updated Description | |
| CWE Content Team | MITRE | updated Other_Notes, Theoretical_Notes | |
| CWE Content Team | MITRE | updated Related_Attack_Patterns | |
| CWE Content Team | MITRE | updated Name | |
| CWE Content Team | MITRE | updated Common_Consequences | |
| CWE Content Team | MITRE | updated Observed_Examples, References, Relationships | |
| CWE Content Team | MITRE | updated Potential_Mitigations | |
| CWE Content Team | MITRE | updated Applicable_Platforms, References, Relationships | |
| CWE Content Team | MITRE | updated References | |
| CWE Content Team | MITRE | updated Related_Attack_Patterns | |
| CWE Content Team | MITRE | updated Relationships | |
| CWE Content Team | MITRE | updated Description | |
| CWE Content Team | MITRE | updated References, Relationships, Time_of_Introduction | |
| CWE Content Team | MITRE | updated Mapping_Notes | |
| CWE Content Team | MITRE | updated Affected_Resources, Functional_Areas | |
| CWE Content Team | MITRE | updated Detection_Factors, Potential_Mitigations, Weakness_Ordinalities | |
| CWE Content Team | MITRE | updated Common_Consequences, Description |
