CVE-2020-25846 Explained : Impact and Mitigation

NHIServiSignAdapter by CHANGING Inc. on Windows platforms is affected by an information leakage vulnerability.

Understanding CVE-2020-25846

NHIServiSignAdapter on Windows is susceptible to an information leakage flaw that could lead to the exposure of user credentials.

What is CVE-2020-25846?

The vulnerability in NHIServiSignAdapter allows an attacker to redirect SMB requests to a malicious host, potentially resulting in the disclosure of user credentials.

The Impact of CVE-2020-25846

The vulnerability poses a high severity risk with a CVSS base score of 7.5, impacting confidentiality by exposing user credentials.

Technical Details of CVE-2020-25846

NHIServiSignAdapter on Windows is affected by an information leakage vulnerability.

Vulnerability Description

The flaw arises from the unverified digest generation function, enabling the redirection of SMB requests to a malicious host, leading to user credential leakage.

Affected Systems and Versions

Affected Platform: Windows
Affected Product: NHIServiSignAdapter
Affected Version: 1.0.20.0218

Exploitation Mechanism

The vulnerability can be exploited by manipulating the source file path to redirect SMB requests to a malicious host, facilitating the leakage of user credentials.

Mitigation and Prevention

To address CVE-2020-25846, immediate actions and long-term security practices are recommended.

Immediate Steps to Take

Update NHIServiSignAdapter to version 1.0.20.1109 to mitigate the vulnerability.

Long-Term Security Practices

Regularly monitor and audit network traffic for any suspicious activities.
Implement strong access controls and authentication mechanisms to prevent unauthorized access.

Patching and Updates

Apply security patches and updates promptly to ensure the protection of systems and data.