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CWE-203 通过差异性导致的信息暴露 类漏洞列表 179

CWE-203 通过差异性导致的信息暴露 类弱点 179 条 CVE 漏洞汇总,含 AI 中文分析。

CWE-203 属于可观察差异漏洞,指产品在不同情境下表现出可被未授权方察觉的差异行为或响应。攻击者常利用此特性进行侧信道分析,通过对比响应时间、错误信息或状态码,推断系统内部逻辑、验证用户身份或探测敏感数据。开发者应避免暴露细微差异,确保对合法与非法请求返回一致的错误提示和响应格式,并统一处理逻辑,从而消除可用于信息泄露的观测线索。

MITRE CWE 官方描述
CWE:CWE-203 Observable Discrepancy 英文:The product behaves differently or sends different responses under different circumstances in a way that is observable to an unauthorized actor. 译文:CWE:CWE-203 可观察差异 英文:产品在不同情况下表现出不同的行为或发送不同的响应,且这种差异对未授权实体是可观察的。
常见影响 (2)
Confidentiality, Access Control Read Application Data, Bypass Protection Mechanism
An attacker can gain access to sensitive information about the system, including authentication information that may allow an attacker to gain access to the system. Other security-relevant information about the operation or internal state of the product may be revealed to an unauthorized actor, such…
Confidentiality Read Application Data
In some cases, discrepancies can be used by attackers to form a side channel. When cryptographic primitives are vulnerable to side-channel attacks, this could be used to reveal unencrypted plaintext in the worst case.
缓解措施 (2)
Architecture and Design Compartmentalize the system to have "safe" areas where trust boundaries can be unambiguously drawn. Do not allow sensitive data to go outside of the trust boundary and always be careful when interfacing with a compartment outside of the safe area. Ensure that appropriate compartmentalization is built into the system design, and the compartmentalization allows for and reinforces privilege separatio…
Implementation Ensure that error messages only contain minimal details that are useful to the intended audience and no one else. The messages need to strike the balance between being too cryptic (which can confuse users) or being too detailed (which may reveal more than intended). The messages should not reveal the methods that were used to determine the error. Attackers can use detailed information to refine or…
代码示例 (2)
The following code checks validity of the supplied username and password and notifies the user of a successful or failed login.
my $username=param('username'); my $password=param('password'); if (IsValidUsername($username) == 1) { if (IsValidPassword($username, $password) == 1) { print "Login Successful"; } else { print "Login Failed - incorrect password"; } } else { print "Login Failed - unknown username"; }
Bad · Perl
"Login Failed - incorrect username or password"
Result
In this example, the attacker observes how long an authentication takes when the user types in the correct password.
def validate_password(actual_pw, typed_pw): if len(actual_pw) <> len(typed_pw): return 0 for i in len(actual_pw): if actual_pw[i] <> typed_pw[i]: return 0 return 1
Bad · Python
CVE ID 标题 CVSS 风险等级 Published
CVE-2026-91725 Google Chrome 侧信道信息泄露漏洞 — Chrome - - 2026-09-15
CVE-2026-91714 Google Chrome 侧信道信息泄露漏洞 — Chrome - - 2026-09-15
CVE-2025-13166 WSO2 Identity Server 用户名枚举漏洞 — WSO2 Identity Server 3.7 Low 2026-09-15
CVE-2025-5802 WSO2产品注册流程用户名枚举漏洞 — WSO2 API Manager 5.3 Medium 2026-09-15
CVE-2026-87459 Google Chrome 侧信道信息泄露漏洞 — Chrome - - 2026-09-09
CVE-2026-87620 Google Chrome 侧信道信息泄露漏洞 — Chrome - - 2026-09-09
CVE-2026-87619 Google Chrome 侧信道信息泄露漏洞 — Chrome - - 2026-09-09
CVE-2026-87623 Google Chrome 侧信道信息泄露漏洞 — Chrome - - 2026-09-09
CVE-2026-87566 Google Chrome 侧信道信息泄露漏洞 — Chrome - - 2026-09-09
CVE-2026-87518 Google Chrome 侧信道信息泄露漏洞 — Chrome - - 2026-09-09
CVE-2026-87516 Google Chrome 侧信道信息泄露漏洞 — Chrome - - 2026-09-09
CVE-2026-87539 Google Chrome 侧信道信息泄露漏洞 — Chrome - - 2026-09-09
CVE-2026-87478 Google Chrome 侧信道信息泄露漏洞 — Chrome - - 2026-09-09
CVE-2026-53933 macropay-solutions Maravel 侧信道信息泄露漏洞 — maravel-framework 6.9 Medium 2026-09-08
CVE-2026-78617 WatchGuard Dimension 侧信道信息泄露漏洞 — Dimension 6.3 Medium 2026-08-27
CVE-2026-11754 Seres Software syWEB 侧信道信息泄露漏洞 — syWEB 5.3 Medium 2026-08-27
CVE-2026-55227 WeblateOrg weblate 侧信道信息泄露漏洞 — weblate 4.3 Medium 2026-08-26
CVE-2026-79181 Google Chrome 侧信道信息泄露漏洞 — Chrome - - 2026-08-25
CVE-2026-78949 Google Chrome 侧信道信息泄露漏洞 — Chrome - - 2026-08-25
CVE-2026-79242 Google Chrome 侧信道信息泄露漏洞 — Chrome - - 2026-08-25
CVE-2026-79287 Google Chrome 侧信道信息泄露漏洞 — Chrome - - 2026-08-25
CVE-2026-78936 Google Chrome 侧信道信息泄露漏洞 — Chrome - - 2026-08-25
CVE-2026-78955 Google Chrome 侧信道信息泄露漏洞 — Chrome - - 2026-08-25
CVE-2026-79028 Google Chrome 侧信道信息泄露漏洞 — Chrome - - 2026-08-25
CVE-2026-79016 Google Chrome 侧信道信息泄露漏洞 — Chrome - - 2026-08-25
CVE-2026-79030 Google Chrome 侧信道信息泄露漏洞 — Chrome - - 2026-08-25
CVE-2026-72699 Grav 侧信道信息泄露漏洞 — grav-plugin-login 5.3 Medium 2026-08-25
CVE-2026-23937 Zabbix 侧信道信息泄露漏洞 — Zabbix 6.0 Medium 2026-08-18
CVE-2026-23931 Zabbix 侧信道信息泄露漏洞 — Zabbix 5.3 Medium 2026-08-18
CVE-2026-73630 SiYuan 侧信道信息泄露漏洞 — siyuan 5.8 Medium 2026-08-14

CWE-203(通过差异性导致的信息暴露) 是常见的弱点类别,本平台收录该类弱点关联的 179 条 CVE 漏洞。