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CWE-200 (信息暴露) — Vulnerability Class 2752

2752 vulnerabilities classified as CWE-200 (信息暴露). AI Chinese analysis included.

CWE-200 represents a critical information disclosure weakness where software inadvertently reveals sensitive data to unauthorized entities. This vulnerability is typically exploited by attackers who leverage insufficient access controls, insecure direct object references, or verbose error messages to harvest credentials, personal identifiable information, or internal system details. By analyzing network traffic or manipulating application inputs, adversaries can extract this exposed data to facilitate further attacks, such as identity theft or privilege escalation. To mitigate this risk, developers must implement strict access control mechanisms, ensuring that data retrieval is validated against user permissions. Additionally, employing robust encryption for data at rest and in transit, along with sanitizing error outputs to prevent information leakage, significantly reduces the attack surface. Regular security audits and adherence to the principle of least privilege further ensure that sensitive information remains protected from unauthorized exposure.

MITRE CWE Description
The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. There are many different kinds of mistakes that introduce information exposures. The severity of the error can range widely, depending on the context in which the product operates, the type of sensitive information that is revealed, and the benefits it may provide to an attacker. Some kinds of sensitive information include: private, personal information, such as personal messages, financial data, health records, geographic location, or contact details system status and environment, such as the operating system and installed packages business secrets and intellectual property network status and configuration the product's own code or internal state metadata, e.g. logging of connections or message headers indirect information, such as a discrepancy between two internal operations that can be observed by an outsider Information might be sensitive to different parties, each of which may have their own expectations for whether the information should be protected. These parties include: the product's own users people or organizations whose information is created or used by the product, even if they are not direct product users the product's administrators, including the admins of the system(s) and/or networks on which the product operates the developer Information exposures can occur in different ways: the code explicitly inserts sensitive information into …
Common Consequences (1)
ConfidentialityRead Application Data
Mitigations (1)
Architecture and DesignCompartmentalize 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…
Examples (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
This code tries to open a database connection, and prints any exceptions that occur.
try { openDbConnection(); } //print exception message that includes exception message and configuration file location catch (Exception $e) { echo 'Caught exception: ', $e->getMessage(), '\n'; echo 'Check credentials in config file at: ', $Mysql_config_location, '\n'; }
Bad · PHP
CVE IDTitleCVSSSeverityPublished
CVE-2021-22739 Schneider Electric spaceLYnk和homeLYnk 信息泄露漏洞 — homeLYnk (Wiser For KNX) and spaceLYnk V2.60 and prior 5.9 -2021-05-26
CVE-2021-32638 CodeQL runner: Command-line options that make GitHub access tokens visible to other processes are now deprecated — codeql-action 4.4 Medium2021-05-25
CVE-2021-32624 Private Field data leak — keystone-5 7.5 High2021-05-24
CVE-2021-27434 Siemens SIMATIC OPC UA 信息泄露漏洞 — OPC UA Products Built with the .NET Framework 4.5, 4.0, and 3.5 9.1 -2021-05-20
CVE-2021-3426 Python 路径遍历漏洞 — python 5.7 -2021-05-20
CVE-2021-32820 File disclosure in Express Handlebars — express-handlebars 8.6 -2021-05-14
CVE-2021-32817 File disclosure in express-hbs — express-hbs 5.4 Medium2021-05-14
CVE-2021-32819 Remote code execution in squirrelly — squirrelly 8.0 High2021-05-14
CVE-2021-22137 Elasticsearch 信息泄露漏洞 — Elasticsearch 5.3 -2021-05-13
CVE-2021-22135 Elasticsearch 信息泄露漏洞 — Elasticsearch 5.3 -2021-05-13
CVE-2021-20993 WAGO: Managed Switches: Exposure of sensitive information through directory listing — 0852-0303 5.3 Medium2021-05-13
CVE-2021-20250 Red Hat JBoss EJB Client 信息泄露漏洞 — wildfly 6.5 -2021-05-13
CVE-2021-20331 MongoDB C# Driver may publish events containing authentication-related data to a command listener configured by an application — MongoDB C# Driver 4.2 Medium2021-05-13
CVE-2021-21424 Prevent user enumeration using Guard or the new Authenticator-based Security — symfony 5.3 Medium2021-05-13
CVE-2021-20313 ImageMagick 安全漏洞 — ImageMagick 7.5 -2021-05-11
CVE-2021-31918 tripleo-ansible 信息泄露漏洞 — tripleo-ansible 5.5 -2021-05-06
CVE-2021-21536 Dell Hybrid Client 信息泄露漏洞 — Dell Hybrid Client (DHC) 6.2 Medium2021-04-30
CVE-2021-21537 Dell Hybrid Client 信息泄露漏洞 — Dell Hybrid Client (DHC) 6.2 Medium2021-04-30
CVE-2021-21534 Dell Hybrid Client 信息泄露漏洞 — Dell Hybrid Client (DHC) 4.0 Medium2021-04-30
CVE-2021-20228 Red Hat Ansible 信息泄露漏洞 — ansible 6.5 -2021-04-29
CVE-2021-29483 wikiconfig API leaked private config variables set through ManageWiki — ManageWiki 9.4 Critical2021-04-28
CVE-2021-30168 MERIT LILIN ENT.CO.,LTD. P2/Z2/P3/Z3 IP camera - Sensitive Data Exposure-1 — P2/Z2/P3/Z3 IP camera firmware 9.8 Critical2021-04-28
CVE-2021-30169 MERIT LILIN ENT.CO.,LTD. P2/Z2/P3/Z3 IP camera - Sensitive Data Exposure-2 — P2/Z2/P3/Z3 IP camera firmware 5.3 Medium2021-04-28
CVE-2021-30638 An Information Disclosure due to insufficient input validation exists in Apache Tapestry 5.4.0 and later — Apache Tapestry 7.5 -2021-04-27
CVE-2020-36319 Potential sensitive data exposure in applications using Vaadin 15 — Vaadin 3.1 Low2021-04-23
CVE-2021-29450 WordPress Authenticated disclosure of password-protected posts and pages — wordpress-develop 6.5 Medium2021-04-15
CVE-2020-7270 Sensitive Information Exposure in McAfee ATD — McAfee Advanced Threat Defense (ATD) 4.9 Medium2021-04-15
CVE-2020-7269 Sensitive Information Exposure in McAfee ATD — McAfee Advanced Threat Defense (ATD) 4.9 Medium2021-04-15
CVE-2021-27850 Bypass of the fix for CVE-2019-0195 — Apache Tapestry 9.8 -2021-04-15
CVE-2021-24227 Patreon WordPress < 1.7.0 - Unauthenticated Local File Disclosure — Patreon WordPress 7.5 -2021-04-12

Vulnerabilities classified as CWE-200 (信息暴露) represent 2752 CVEs. The CWE taxonomy describes the weakness; review individual CVEs for product-specific impact.