CVE-2020-7377 : Vulnerability Insights and Analysis

This CVE involves a relative path traversal vulnerability in the Metasploit Framework's telpho10_credential_dump module, allowing attackers to write arbitrary files to the host file system. Users of affected versions should update to 6.0.3 or later.

Understanding CVE-2020-7377

The vulnerability affects the Metasploit Framework, specifically the telpho10_credential_dump module, potentially leading to arbitrary file writing on the host system.

What is CVE-2020-7377?

The Metasploit Framework module "auxiliary/admin/http/telpho10_credential_dump" is susceptible to a relative path traversal flaw in the untar method, enabling malicious actors to write files to any location on the host file system when executed on a compromised HTTP server.

The Impact of CVE-2020-7377

The vulnerability has a CVSS base score of 8.1 (High severity) with a LOW attack complexity. It poses a HIGH availability impact and HIGH integrity impact, requiring user interaction for exploitation.

Technical Details of CVE-2020-7377

The technical aspects of the CVE provide insight into the vulnerability's description, affected systems, and exploitation mechanism.

Vulnerability Description

The vulnerability allows attackers to perform relative path traversal, leading to unauthorized file writing on the host system.

Affected Systems and Versions

Product: Metasploit Framework
Vendor: Rapid7
Versions Affected:
4.12.40 (custom version)
6.0.3 (custom version)

Exploitation Mechanism

The vulnerability can be exploited by running the affected module on a malicious HTTP server, enabling the writing of arbitrary files to any location on the host system.

Mitigation and Prevention

To address CVE-2020-7377, users should take immediate steps and adopt long-term security practices to enhance their system's security.

Immediate Steps to Take

Update to version 6.0.3 or later of the Metasploit Framework to mitigate the vulnerability.

Long-Term Security Practices

Regularly monitor and update software to prevent future vulnerabilities.
Implement network segmentation and access controls to limit the impact of potential attacks.
Educate users on safe practices to reduce the risk of exploitation.

Patching and Updates

Stay informed about security patches and updates released by the vendor to address known vulnerabilities.