CVE-2025-25051: Information Disclosure Vulnerability

CVE-2025-25051 Overview

CVE-2025-25051 is a vulnerability involving plaintext storage of credentials (CWE-256) that could allow an attacker to decrypt sensitive data, impersonate legitimate users or devices, and potentially gain access to network resources for lateral attacks. This vulnerability requires local access and low privileges to exploit, making it a concern for environments where unauthorized physical or local access may occur.

Critical Impact

Successful exploitation could enable attackers to decrypt sensitive data, impersonate users or devices, and leverage compromised credentials for lateral movement across network resources.

Affected Products

• Industrial Control Systems (ICS) environments - See CISA ICS Advisory ICSA-26-022-02 for specific affected products

Discovery Timeline

• 2026-01-22 - CVE CVE-2025-25051 published to NVD
• 2026-01-22 - Last updated in NVD database

Technical Details for CVE-2025-25051

Vulnerability Analysis

This vulnerability stems from improper credential storage practices where sensitive authentication data is stored in plaintext rather than using secure cryptographic methods. An attacker with local access to the affected system can retrieve these stored credentials directly from the filesystem or memory, bypassing any authentication mechanisms that would normally protect this information.

The vulnerability affects Industrial Control Systems (ICS) environments, which are particularly sensitive given their role in critical infrastructure. The local attack vector means that an adversary would need to have some form of access to the target system, but once achieved, the exploitation requires minimal complexity and only low-level privileges.

Root Cause

The root cause of CVE-2025-25051 is the storage of credentials in plaintext format (CWE-256: Plaintext Storage of a Password). Instead of implementing proper credential protection mechanisms such as secure hashing with salting, encryption at rest, or integration with secure credential storage systems, the affected application stores sensitive authentication data in a readable format. This design flaw violates fundamental security principles for credential management.

Attack Vector

The attack vector for this vulnerability is local, requiring the attacker to have existing access to the target system. The exploitation path typically involves:

1. Initial Access: Attacker gains local access to the affected system through physical access, compromised user account, or other means
2. Credential Discovery: Attacker locates configuration files, databases, or memory locations where plaintext credentials are stored
3. Credential Extraction: Attacker reads the plaintext credentials without needing to crack or decrypt them
4. Lateral Movement: Using the extracted credentials, the attacker can impersonate legitimate users or devices and access additional network resources

The vulnerability does not require user interaction and affects confidentiality (high impact) and integrity (low impact) while having no direct availability impact.

Detection Methods for CVE-2025-25051

Indicators of Compromise

• Unexpected file access events targeting configuration files or credential stores
• Anomalous local process execution attempting to read sensitive system files
• Authentication events from unexpected locations using legitimate credentials
• Signs of lateral movement following local system compromise

Detection Strategies

• Monitor file integrity for configuration files and credential storage locations
• Implement endpoint detection and response (EDR) solutions to detect suspicious local file access patterns
• Enable detailed audit logging for access to sensitive directories and files
• Deploy user and entity behavior analytics (UEBA) to identify anomalous authentication patterns

Monitoring Recommendations

• Review system logs for unusual local access patterns to credential storage locations
• Configure alerts for multiple failed authentication attempts followed by successful logins
• Monitor network traffic for lateral movement indicators following local system access
• Implement privileged access monitoring for administrative credentials

How to Mitigate CVE-2025-25051

Immediate Actions Required

• Review the CISA ICS Advisory ICSA-26-022-02 for vendor-specific guidance and patches
• Identify all systems potentially storing credentials in plaintext
• Restrict local access to affected systems to authorized personnel only
• Implement network segmentation to limit lateral movement potential

Patch Information

Consult the CISA ICS Advisory ICSA-26-022-02 for official patch information and vendor-specific remediation guidance. The GitHub CSAF JSON File contains additional technical details about the vulnerability and remediation steps.

Workarounds

• Implement additional access controls to restrict local access to affected systems
• Deploy file integrity monitoring on credential storage locations
• Enable enhanced logging and monitoring for affected systems
• Consider network isolation for affected ICS devices until patches can be applied
• Review and rotate any credentials that may have been stored in plaintext