Information Disclosure
Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.
How It Works
Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security. This happens through multiple channels: verbose error messages that display stack traces revealing internal paths and frameworks, improperly secured debug endpoints left active in production, and misconfigured servers that expose directory listings or version control artifacts like .git folders. APIs often leak excessive data in responses—returning full user objects when only a name is needed, or revealing system internals through metadata fields.
Attackers exploit these exposures systematically. They probe for common sensitive files (.env, config.php, backup archives), trigger error conditions to extract framework details, and analyze response timing or content differences to enumerate valid usernames or resources. Even subtle variations—like "invalid password" versus "user not found"—enable account enumeration. Exposed configuration files frequently contain database credentials, API keys, or internal service URLs that unlock further attack vectors.
The attack flow typically starts with passive reconnaissance: examining HTTP headers, JavaScript bundles, and public endpoints for version information and architecture clues. Active probing follows—testing predictable paths, manipulating parameters to trigger exceptions, and comparing responses across similar requests to identify information leakage patterns.
Impact
- Credential compromise: Exposed configuration files, hardcoded secrets in source code, or API keys enable direct authentication bypass
- Attack surface mapping: Stack traces, framework versions, and internal paths help attackers craft targeted exploits for known vulnerabilities
- Data breach: Direct exposure of user data, payment information, or proprietary business logic through oversharing APIs or accessible backups
- Privilege escalation pathway: Internal URLs, service discovery information, and architecture details facilitate lateral movement and SSRF attacks
- Compliance violations: GDPR, PCI-DSS, and HIPAA penalties for exposing regulated data through preventable disclosures
Real-World Examples
A major Git repository exposure affected thousands of websites when .git folders remained accessible on production servers, allowing attackers to reconstruct entire source code histories including deleted commits containing credentials. Tools like GitDumper automated mass exploitation of this misconfiguration.
Cloud storage misconfigurations have repeatedly exposed sensitive data when companies left S3 buckets or Azure Blob containers publicly readable. One incident exposed 150 million voter records because verbose API error messages revealed the storage URL structure, and no authentication was required.
Framework debug modes left enabled in production have caused numerous breaches. Django's DEBUG=True setting exposed complete stack traces with database queries and environment variables, while Laravel's debug pages revealed encryption keys through the APP_KEY variable in environment dumps.
Mitigation
- Generic error pages: Return uniform error messages to users; log detailed exceptions server-side only
- Disable debug modes: Enforce production configurations that suppress stack traces, verbose logging, and debug endpoints through deployment automation
- Access control audits: Restrict or remove development artifacts (
.git, backup files,phpinfo()) and internal endpoints before deployment - Response minimization: API responses should return only necessary fields; implement allowlists rather than blocklists for data exposure
- Security headers: Deploy
X-Content-Type-Options, remove server version banners, and disable directory indexing - Timing consistency: Ensure authentication and validation responses take uniform time regardless of input validity
Recent CVEs (70502)
The AD Helper component in WatchGuard Fireware before 5.8.5.10317 allows remote attackers to discover cleartext passwords via the /domains/list URI. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
A flaw was found in Ansible 2.7.16 and prior, 2.8.8 and prior, and 2.9.5 and prior when a password is set with the argument "password" of svn module, it is used on svn command line, disclosing to. Rated low severity (CVSS 3.9), this vulnerability is low attack complexity. This Exposure of Sensitive Information vulnerability could allow attackers to access sensitive data that should not be disclosed.
Improper conditions check in Intel(R) Graphics Drivers before versions 15.33.49.5100, 15.36.38.5117, 15.40.44.5107, 15.45.30.5103, and 26.20.100.7212 may allow an authenticated user to potentially. Rated medium severity (CVSS 6.1), this vulnerability is low attack complexity. No vendor patch available.
Improper access control in Intel(R) Graphics Drivers before version 26.20.100.7212 may allow an authenticated user to potentially enable information disclosure via local access. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
An elevation of privilege vulnerability exists in Service Fabric File Store Service under certain conditions, aka 'Service Fabric Elevation of Privilege'. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity.
An elevation of privilege vulnerability exists when the Windows Graphics Component improperly handles objects in memory, aka 'Windows Graphics Component Elevation of Privilege Vulnerability'. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity.
An elevation of privilege vulnerability exists when the Windows Work Folder Service improperly handles file operations, aka 'Windows Work Folder Service Elevation of Privilege Vulnerability'. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity.
An elevation of privilege vulnerability exists when Windows improperly handles hard links, aka 'Windows Hard Link Elevation of Privilege Vulnerability'. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity.
An elevation of privilege vulnerability exists in Windows when the Win32k component fails to properly handle objects in memory, aka 'Win32k Elevation of Privilege Vulnerability'. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity.
An information disclosure vulnerability exists when the Windows GDI component improperly discloses the contents of its memory, aka 'Windows Graphics Component Information Disclosure Vulnerability'. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity.
A spoofing vulnerability exists in Microsoft Visual Studio as it includes a reply URL that is not secured by SSL, aka 'Microsoft Visual Studio Spoofing Vulnerability'. Rated low severity (CVSS 3.7), this vulnerability is remotely exploitable, no authentication required.
An information disclosure vulnerability exists when the Windows GDI component improperly discloses the contents of its memory, aka 'Windows GDI Information Disclosure Vulnerability'. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity.
An information disclosure vulnerability exists when the Windows GDI component improperly discloses the contents of its memory, aka 'Windows GDI Information Disclosure Vulnerability'. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity.
An information disclosure vulnerability exists in the way that the Windows Graphics Device Interface (GDI) handles objects in memory, allowing an attacker to retrieve information from a targeted. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity.
An elevation of privilege vulnerability exists in Windows when the Win32k component fails to properly handle objects in memory, aka 'Win32k Elevation of Privilege Vulnerability'. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity.
An information disclosure vulnerability exists when the win32k component improperly provides kernel information, aka 'Win32k Information Disclosure Vulnerability'. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity.
An information disclosure vulnerability exists in the way that the Windows Graphics Device Interface (GDI) handles objects in memory, allowing an attacker to retrieve information from a targeted. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity.
An information disclosure vulnerability exists when Windows Network Connections Service fails to properly handle objects in memory, aka 'Windows Network Connections Service Information Disclosure. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity.
An elevation of privilege vulnerability exists when the Windows Update Orchestrator Service improperly handles file operations, aka 'Windows Update Orchestrator Service Elevation of Privilege. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity.
An elevation of privilege vulnerability exists when the Windows Update Orchestrator Service improperly handles file operations, aka 'Windows Update Orchestrator Service Elevation of Privilege. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity.
An elevation of privilege vulnerability exists when the Windows Work Folder Service improperly handles file operations, aka 'Windows Work Folder Service Elevation of Privilege Vulnerability'. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity.
An elevation of privilege vulnerability exists when the Windows Work Folder Service improperly handles file operations, aka 'Windows Work Folder Service Elevation of Privilege Vulnerability'. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity.
An elevation of privilege vulnerability exists when the Windows Work Folder Service improperly handles file operations, aka 'Windows Work Folder Service Elevation of Privilege Vulnerability'. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity.
An information vulnerability exists when Windows Connected User Experiences and Telemetry Service improperly discloses file information, aka 'Connected User Experiences and Telemetry Service. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity.
An information disclosure vulnerability exists when the Windows Network Driver Interface Specification (NDIS) improperly handles memory.To exploit this vulnerability, an attacker would first have to. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity.
An elevation of privilege vulnerability exists when the Windows ActiveX Installer Service improperly handles memory.To exploit this vulnerability, an attacker would first have to gain execution on. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity.
An information vulnerability exists when Windows Modules Installer Service improperly discloses file information, aka 'Windows Modules Installer Service Information Disclosure Vulnerability'. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity.
An elevation of privilege vulnerability exists when the "Public Account Pictures" folder improperly handles junctions.To exploit this vulnerability, an attacker would first have to gain. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity.
An elevation of privilege vulnerability exists in the way that the Windows Search Indexer handles objects in memory, aka 'Windows Search Indexer Elevation of Privilege Vulnerability'. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity.
An elevation of privilege vulnerability exists when Windows Mobile Device Management (MDM) Diagnostics improperly handles junctions, aka 'Windows Mobile Device Management Diagnostics Elevation of. Rated high severity (CVSS 7.1), this vulnerability is low attack complexity.
An information disclosure vulnerability exists in Windows when the Windows Imaging Component fails to properly handle objects in memory, aka 'Windows Imaging Component Information Disclosure. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity.
An elevation of privilege vulnerability exists when Windows improperly handles hard links, aka 'Windows Hard Link Elevation of Privilege Vulnerability'. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity.
An elevation of privilege vulnerability exists in the way that the Windows Network Connections Service handles objects in memory, aka 'Windows Network Connections Service Elevation of Privilege. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity.
An elevation of privilege vulnerability exists when Connected User Experiences and Telemetry Service improperly handles file operations, aka 'Connected User Experiences and Telemetry Service. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity.
An elevation of privilege vulnerability exists in Windows Installer because of the way Windows Installer handles certain filesystem operations.To exploit the vulnerability, an attacker would require. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity.
An elevation of privilege vulnerability exists in Windows Installer because of the way Windows Installer handles certain filesystem operations.To exploit the vulnerability, an attacker would require. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity.
An elevation of privilege vulnerability exists when Windows improperly handles hard links, aka 'Windows Hard Link Elevation of Privilege Vulnerability'. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity.
An elevation of privilege vulnerability exists when Windows improperly handles hard links, aka 'Windows Hard Link Elevation of Privilege Vulnerability'. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity.
An elevation of privilege vulnerability exists when the Windows Language Pack Installer improperly handles file operations, aka 'Windows Language Pack Installer Elevation of Privilege Vulnerability'. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity.
An information disclosure vulnerability exists when Media Foundation improperly handles objects in memory, aka 'Media Foundation Information Disclosure Vulnerability'. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity.
An elevation of privilege vulnerability exists when the Windows Device Setup Manager improperly handles file operations, aka 'Windows Device Setup Manager Elevation of Privilege Vulnerability'. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity.
An elevation of privilege vulnerability exists when Azure DevOps Server and Team Foundation Services improperly handle pipeline job tokens, aka 'Azure DevOps Server and Team Foundation Services. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable.
An elevation of privilege vulnerability exists in Windows Installer because of the way Windows Installer handles certain filesystem operations.To exploit the vulnerability, an attacker would require. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity.
An information disclosure vulnerability exists when Chakra improperly discloses the contents of its memory, which could provide an attacker with information to further compromise the user’s. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity.
An elevation of privilege vulnerability exists when the Diagnostics Hub Standard Collector or the Visual Studio Standard Collector allows file creation in arbitrary locations.To exploit the. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity.
An elevation of privilege vulnerability exists in the way the Provisioning Runtime validates certain file operations, aka 'Provisioning Runtime Elevation of Privilege Vulnerability'. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity.
An elevation of privilege vulnerability exists in Windows Error Reporting (WER) when WER handles and executes files, aka 'Windows Error Reporting Elevation of Privilege Vulnerability'. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity.
An elevation of privilege vulnerability exists in the way that the Windows Network Connections Service handles objects in memory, aka 'Windows Network Connections Service Elevation of Privilege. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity.
An elevation of privilege vulnerability exists in the way that the Windows Network Connections Service handles objects in memory, aka 'Windows Network Connections Service Elevation of Privilege. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity.
An elevation of privilege vulnerability exists in the way that the Windows Network Connections Service handles objects in memory, aka 'Windows Network Connections Service Elevation of Privilege. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity.
An elevation of privilege vulnerability exists when the Windows Work Folder Service improperly handles file operations, aka 'Windows Work Folder Service Elevation of Privilege Vulnerability'. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity.
An elevation of privilege vulnerability exists when the Windows Work Folder Service improperly handles file operations, aka 'Windows Work Folder Service Elevation of Privilege Vulnerability'. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity.
An elevation of privilege vulnerability exists when the Diagnostics Hub Standard Collector Service improperly handles file operations, aka 'Diagnostics Hub Standard Collector Elevation of Privilege. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity.
An elevation of privilege vulnerability exists when the Windows Graphics Component improperly handles objects in memory, aka 'Windows Graphics Component Elevation of Privilege Vulnerability'. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity.
An elevation of privilege vulnerability exists in Windows when the Win32k component fails to properly handle objects in memory, aka 'Win32k Elevation of Privilege Vulnerability'. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity.
An elevation of privilege vulnerability exists when the Windows Background Intelligent Transfer Service (BITS) improperly handles symbolic links, aka 'Windows Background Intelligent Transfer Service. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. Public exploit code available.
An elevation of privilege vulnerability exists when the Windows Universal Plug and Play (UPnP) service improperly handles objects in memory, aka 'Windows UPnP Service Elevation of Privilege. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity.
An elevation of privilege vulnerability exists when the Windows Universal Plug and Play (UPnP) service improperly handles objects in memory, aka 'Windows UPnP Service Elevation of Privilege. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity.
An elevation of privilege vulnerability exists in the way that the Windows Network List Service handles objects in memory, aka 'Windows Network List Service Elevation of Privilege Vulnerability'. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity.
An elevation of privilege vulnerability exists in the Windows Installer when MSI packages process symbolic links, aka 'Windows Installer Elevation of Privilege Vulnerability'. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity.
An elevation of privilege vulnerability exists in the way that the Windows Network Connections Service handles objects in memory, aka 'Windows Network Connections Service Elevation of Privilege. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity.
An elevation of privilege vulnerability exists when the Windows Work Folder Service improperly handles file operations, aka 'Windows Work Folder Service Elevation of Privilege Vulnerability'. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity.
An elevation of privilege vulnerability exists when the Windows AppX Deployment Server improperly handles file operations.To exploit this vulnerability, an attacker would first have to gain execution. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity.
An information disclosure vulnerability exists when Windows Error Reporting improperly handles file operations.To exploit this vulnerability, an attacker would first have to gain execution on the. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity.
An information disclosure vulnerability exists when the Windows GDI component improperly discloses the contents of its memory, aka 'Windows GDI Information Disclosure Vulnerability'. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity.
An elevation of privilege vulnerability exists when the Windows ActiveX Installer Service improperly handles memory.To exploit this vulnerability, an attacker would first have to gain execution on. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity.
An elevation of privilege vulnerability exists when Windows Error Reporting improperly handles memory.To exploit this vulnerability, an attacker would first have to gain execution on the victim. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity.
An elevation of privilege vulnerability exists when the Windows CSC Service improperly handles memory.To exploit this vulnerability, an attacker would first have to gain execution on the victim. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity.
An elevation of privilege vulnerability exists when the Windows ActiveX Installer Service improperly handles memory.To exploit this vulnerability, an attacker would first have to gain execution on. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity.
An elevation of privilege vulnerability exists when the Windows CSC Service improperly handles memory.To exploit this vulnerability, an attacker would first have to gain execution on the victim. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity.
An information disclosure vulnerability exists in the Remote Desktop Connection Manager (RDCMan) application when it improperly parses XML input containing a reference to an external entity, aka. Rated medium severity (CVSS 5.5), this vulnerability is no authentication required, low attack complexity.
An elevation of privilege vulnerability exists when Windows Defender Security Center handles certain objects in memory.To exploit the vulnerability, an attacker would first have to log on to the. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity.
An elevation of privilege vulnerability exists when Windows Defender Security Center handles certain objects in memory.To exploit the vulnerability, an attacker would first have to log on to the. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity.
An elevation of privilege vulnerability exists when Azure DevOps Server and Team Foundation Services improperly handle pipeline job tokens, aka 'Azure DevOps Server and Team Foundation Services. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable.
An elevation of privilege vulnerability exists when DirectX improperly handles objects in memory, aka 'DirectX Elevation of Privilege Vulnerability'. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity.
A tampering vulnerability exists when Microsoft IIS Server improperly handles malformed request headers, aka 'Microsoft IIS Server Tampering Vulnerability'. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity.
In Twisted Web through 19.10.0, there was an HTTP request splitting vulnerability. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
In Twisted Web through 19.10.0, there was an HTTP request splitting vulnerability. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.
minimist before 1.2.2 could be tricked into adding or modifying properties of Object.prototype using a "constructor" or "__proto__" payload. Rated medium severity (CVSS 5.6), this vulnerability is remotely exploitable, no authentication required. Public exploit code available and no vendor patch available.
NVIDIA Windows GPU Display Driver, all versions, contains a vulnerability in the NVIDIA Control Panel component in which an attacker with local system access can plant a malicious DLL file, which may. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
A race condition flaw was found in Ansible Engine 2.7.17 and prior, 2.8.9 and prior, 2.9.6 and prior when running a playbook with an unprivileged become user. Rated medium severity (CVSS 5.0). Public exploit code available and no vendor patch available.
Technicolor TC7337NET 08.89.17.23.03 devices allow remote attackers to discover passwords by sniffing the network for an "Authorization: Basic" HTTP header. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
SAP NetWeaver Application Server Java (User Management Engine), versions- 7.10, 7.11, 7.20, 7.30, 7.31, 7.40, 7.50; does not sufficiently validate the LDAP data source configuration XML document. Rated high severity (CVSS 7.2), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
SAP Enable Now, before version 1908, does not invalidate session tokens in a timely manner. Rated low severity (CVSS 3.3), this vulnerability is low attack complexity. No vendor patch available.
SAP Enable Now, before version 1911, sends the Session ID cookie value in URL. Rated medium severity (CVSS 5.4), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
In getProcessPss of ActivityManagerService.java, there is a possible side channel information disclosure. Rated medium severity (CVSS 5.5), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
In Euicc, there is a possible information disclosure due to an included test Certificate. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
In btm_process_inq_results of btm_inq.cc, there is a possible out of bounds read due to a missing bounds check. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
In btu_hcif_connection_comp_evt of btu_hcif.cc, there is a possible out of bounds read due to a missing bounds check. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
In l2c_link_process_num_completed_pkts of l2c_link.cc, there is a possible out of bounds read due to a missing bounds check. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.