CVE-2020-11885 : What You Need to Know

WSO2 Enterprise Integrator through 6.6.0 has an XXE vulnerability that allows a user with admin console access to perform unintended network invocations like SSRF via an uploaded file.

Understanding CVE-2020-11885

This CVE involves an XML External Entity (XXE) vulnerability in WSO2 Enterprise Integrator.

What is CVE-2020-11885?

WSO2 Enterprise Integrator through version 6.6.0 is susceptible to an XXE vulnerability.
An attacker with admin console access can exploit this flaw to trigger unintended network invocations, such as Server-Side Request Forgery (SSRF), by utilizing the XML validator with an uploaded file.

The Impact of CVE-2020-11885

CVSS Base Score: 4 (Medium)
Attack Vector: Network
Attack Complexity: High
Privileges Required: High
User Interaction: Required
Scope: Changed
Confidentiality Impact: Low
Integrity Impact: None
Availability Impact: Low

Technical Details of CVE-2020-11885

This section provides more in-depth technical insights into the vulnerability.

Vulnerability Description

The vulnerability in WSO2 Enterprise Integrator allows an authenticated user to perform SSRF attacks through the XML validator.

Affected Systems and Versions

Affected Versions: WSO2 Enterprise Integrator through 6.6.0

Exploitation Mechanism

An attacker needs admin console access to exploit the XXE vulnerability and trigger SSRF attacks.

Mitigation and Prevention

Protect your systems from CVE-2020-11885 with these mitigation strategies.

Immediate Steps to Take

Apply vendor-supplied patches or updates promptly.
Restrict admin console access to trusted users only.
Monitor and filter XML inputs to prevent XXE attacks.

Long-Term Security Practices

Regularly update and patch software to address known vulnerabilities.
Conduct security training for users to raise awareness of potential threats like XXE.

Patching and Updates

Stay informed about security advisories and updates from WSO2 to address vulnerabilities like CVE-2020-11885.