名称: Observable Internal Behavioral Discrepancy

The product performs multiple behaviors that are combined to produce a single result, but the individual behaviors are observable separately in a way that allows attackers to reveal internal state or internal decision points.

基本信息

引入方式

Architecture and Design
Implementation

适用平台

编程语言

类： Not Language-Specific (Undetermined)

常见后果

影响范围	影响	可能性
Confidentiality Access Control	Read Application Data, Bypass Protection Mechanism

观察示例

参考资料	描述
CVE-2002-2031	File existence via infoleak monitoring whether "onerror" handler fires or not.
CVE-2005-2025	Valid groupname enumeration via behavioral infoleak (sends response if valid, doesn't respond if not).
CVE-2001-1497	Behavioral infoleak in GUI allows attackers to distinguish between alphanumeric and non-alphanumeric characters in a password, thus reducing the search space.
CVE-2003-0190	Product immediately sends an error message when user does not exist instead of waiting until the password is provided, allowing username enumeration.

潜在缓解措施

Phases : Requirements // Implementation
Phases : System Configuration // Implementation
For error pages, set up generic response pages for error conditions. The error page should not disclose information about the success or failure of a sensitive operation. For instance, the login page should not confirm that the login is correct and the password incorrect. The attacker who tries random account names may be able to guess some of them. Confirming that the account exists would make the login page more susceptible to brute force attack, or possibly leak information about the person who has the account.

漏洞映射说明

依据 : 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.
备注 : 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.

提交记录

名称	组织	日期	发布日期	Version
PLOVER		2006-07-19 +00:00	2006-07-19 +00:00	Draft 3

修改记录

名称	组织	日期	备注
Eric Dalci	Cigital	2008-07-01 +00:00	updated Potential_Mitigations, Time_of_Introduction
CWE Content Team	MITRE	2008-09-08 +00:00	updated Relationships, Taxonomy_Mappings
CWE Content Team	MITRE	2011-03-29 +00:00	updated Name
CWE Content Team	MITRE	2011-06-01 +00:00	updated Common_Consequences
CWE Content Team	MITRE	2012-05-11 +00:00	updated Relationships
CWE Content Team	MITRE	2012-10-30 +00:00	updated Potential_Mitigations
CWE Content Team	MITRE	2014-07-30 +00:00	updated Relationships
CWE Content Team	MITRE	2017-11-08 +00:00	updated Applicable_Platforms
CWE Content Team	MITRE	2020-02-24 +00:00	updated Description, Name, Potential_Mitigations, Relationships
CWE Content Team	MITRE	2023-04-27 +00:00	updated Relationships
CWE Content Team	MITRE	2023-06-29 +00:00	updated Mapping_Notes
CWE Content Team	MITRE	2025-12-11 +00:00	updated Weakness_Ordinalities
CWE Content Team	MITRE	2026-10-28 +00:00	updated Description, Potential_Mitigations

CWE-206 详情

CWE-206