CWE-1275
Sensitive Cookie with Improper SameSite Attribute
2020-02-24
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特定のCWEの通知
特定のCWEの変更情報をいち早くお届けします。
名前: Sensitive Cookie with Improper SameSite Attribute
The SameSite attribute for sensitive cookies is not set, or an insecure value is used.
一般情報
背景の詳細
導入モード
Implementation : This weakness occurs during implementation when the coder does not properly set the SameSite attribute.適用可能なプラットフォーム
言語
クラス： Not Language-Specific (Undetermined)オペレーティングシステム
クラス： Not OS-Specific (Undetermined)アーキテクチャ
クラス： Not Architecture-Specific (Undetermined)テクノロジー
クラス： Web Based (Undetermined)名前： Web Server (Undetermined)
一般的な結果
| スコープ | 影響 | 可能性 |
|---|---|---|
| Confidentiality Integrity Non-Repudiation Access Control | Modify Application Data |
観察された例
| 参考文献 | 説明 |
|---|---|
CVE-2022-24045 | Web application for a room automation system has client-side JavaScript that sets a sensitive cookie without the SameSite security attribute, allowing the cookie to be sniffed |
潜在的な緩和策
Phases : ImplementationSet the SameSite attribute of a sensitive cookie to "Lax" or "Strict". This instructs the browser to apply this cookie only to same-domain requests, which provides a good Defense in Depth against CSRF attacks. When the "Lax" value is in use, cookies are also sent for top-level cross-domain navigation via HTTP GET, HEAD, OPTIONS, and TRACE methods, but not for other HTTP methods that are more likely to cause side-effects of state mutation.
検出方法
Automated Static Analysis
Automated static analysis, commonly referred to as Static Application Security Testing (SAST), can find some instances of this weakness by analyzing source code (or binary/compiled code) without having to execute it. Typically, this is done by building a model of data flow and control flow, then searching for potentially-vulnerable patterns that connect "sources" (origins of input) with "sinks" (destinations where the data interacts with external components, a lower layer such as the OS, etc.)有効性 : High
脆弱性マッピングノート
理由 : 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.コメント : 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.
関連する攻撃パターン
| CAPEC ID | 攻撃パターン名 |
|---|---|
| CAPEC-62 | Cross Site Request Forgery
An attacker crafts malicious web links and distributes them (via web pages, email, etc.), typically in a targeted manner, hoping to induce users to click on the link and execute the malicious action against some third-party application. If successful, the action embedded in the malicious link will be processed and accepted by the targeted application with the users' privilege level. This type of attack leverages the persistence and implicit trust placed in user session cookies by many web applications today. In such an architecture, once the user authenticates to an application and a session cookie is created on the user's system, all following transactions for that session are authenticated using that cookie including potential actions initiated by an attacker and simply "riding" the existing session cookie. |
参考文献
REF-1104
SameSite attribute specification draftM. West, M. Goodwin.
https://datatracker.ietf.org/doc/html/draft-west-first-party-cookies-07
REF-1105
SameSite attribute description on MDN Web DocsMozilla.
https://developer.mozilla.org/en-US/docs/Web/HTTP/Reference/Headers/Set-Cookie#samesitesamesite-value
REF-1106
Chromium support for SameSite attributeThe Chromium Projects.
https://www.chromium.org/updates/same-site/
登録情報
| 名前 | 組織 | 日付 | リリース日 | Version |
|---|---|---|---|---|
| Michael Stepankin | Veracode | 4.1 |
変更履歴
| 名前 | 組織 | 日付 | コメント |
|---|---|---|---|
| CWE Content Team | MITRE | updated Demonstrative_Examples, Related_Attack_Patterns | |
| CWE Content Team | MITRE | updated Relationships | |
| CWE Content Team | MITRE | updated Demonstrative_Examples | |
| CWE Content Team | MITRE | updated Relationships | |
| CWE Content Team | MITRE | updated Detection_Factors, References, Relationships | |
| CWE Content Team | MITRE | updated Mapping_Notes | |
| CWE Content Team | MITRE | updated Demonstrative_Examples, Observed_Examples | |
| CWE Content Team | MITRE | updated References | |
| CWE Content Team | MITRE | updated Applicable_Platforms, Relationships, Weakness_Ordinalities | |
| CWE Content Team | MITRE | updated Background_Details, Common_Consequences, Description, Potential_Mitigations |
