CVE-2019-1877 : Vulnerability Insights and Analysis

Cisco Enterprise Chat and Email Attachment Download Vulnerability

Understanding CVE-2019-1877

This CVE involves a security weakness in the HTTP API of Cisco Enterprise Chat and Email, potentially allowing unauthorized access to files shared during chat sessions.

What is CVE-2019-1877?

The vulnerability stems from inadequate authentication measures in the file download functionality of the API, enabling attackers to retrieve files uploaded by other users within the chat feature.

The Impact of CVE-2019-1877

CVSS Score: 6.5 (Medium Severity)
Confidentiality Impact: High
Attack Vector: Network
User Interaction: Required
Privileges Required: None

Technical Details of CVE-2019-1877

The following technical details provide insight into the vulnerability and its implications:

Vulnerability Description

The vulnerability allows attackers to exploit the file download function of the API, potentially leading to unauthorized access to files shared in chat sessions.

Affected Systems and Versions

Product: Cisco Enterprise Chat and Email
Vendor: Cisco
Affected Versions: Before 12.0(1)ES1

Exploitation Mechanism

Attackers can exploit this vulnerability by sending a specially crafted request to the API, bypassing authentication measures and gaining access to files uploaded by other users.

Mitigation and Prevention

Taking immediate steps and implementing long-term security practices are crucial to mitigating the risks associated with CVE-2019-1877:

Immediate Steps to Take

Implement access controls and proper authentication mechanisms.
Monitor API requests for any suspicious activity.
Apply security patches and updates promptly.

Long-Term Security Practices

Conduct regular security assessments and audits.
Educate users on secure file sharing practices.
Stay informed about security advisories and best practices.

Patching and Updates

Cisco may release patches to address this vulnerability, and users should apply them as soon as they are available.