CVE-2019-17123 : Security Advisory and Response

The eGain Web Email API 11+ has a vulnerability that allows for the sending of spoofed messages due to mishandling of specific fields.

Understanding CVE-2019-17123

This CVE involves a vulnerability in the eGain Web Email API 11+ that enables the injection of spoofed messages.

What is CVE-2019-17123?

The vulnerability in the eGain Web Email API 11+ allows attackers to send spoofed messages by manipulating certain fields in the /system/ws/v11/ss/email endpoint.

The Impact of CVE-2019-17123

Attackers can inject a fromName header using special characters like %0a or %0d.
The message parameter permits the inclusion of initial HTML comment characters.

Technical Details of CVE-2019-17123

This section provides more technical insights into the CVE.

Vulnerability Description

The vulnerability arises from the mishandling of the fromName and message fields in the /system/ws/v11/ss/email endpoint.

Affected Systems and Versions

Product: Not applicable
Vendor: Not applicable
Versions: Not applicable

Exploitation Mechanism

The attacker can inject a fromName header using special characters such as %0a or %0d. Additionally, the message parameter allows for the inclusion of initial HTML comment characters.

Mitigation and Prevention

Protecting systems from CVE-2019-17123 is crucial to prevent spoofed messages.

Immediate Steps to Take

Apply security patches provided by the vendor promptly.
Monitor email traffic for any suspicious activities.

Long-Term Security Practices

Regularly update and patch the eGain Web Email API to the latest version.
Educate users on identifying and avoiding phishing emails.

Patching and Updates

Ensure that the eGain Web Email API is regularly updated with the latest security patches to mitigate the vulnerability.