CVE-2019-10686 Explained : Impact and Mitigation

A security weakness known as Server-Side Request Forgery (SSRF) has been uncovered in version 1.4.0-SNAPSHOT of the Ctrip Apollo API. Exploiting this vulnerability, an unauthorized individual could potentially perform an intranet port scan or trigger a GET request by misusing the %23 substring within the /system-info/health endpoint.

Understanding CVE-2019-10686

An SSRF vulnerability was found in an API from Ctrip Apollo through version 1.4.0-SNAPSHOT. This vulnerability could allow an attacker to conduct an intranet port scan or initiate a GET request through the mishandling of the %23 substring.

What is CVE-2019-10686?

CVE-2019-10686 is a Server-Side Request Forgery (SSRF) vulnerability discovered in version 1.4.0-SNAPSHOT of the Ctrip Apollo API. It enables unauthorized individuals to potentially perform malicious actions like intranet port scanning or triggering GET requests.

The Impact of CVE-2019-10686

The vulnerability could be exploited by attackers to conduct intranet port scans or initiate unauthorized GET requests, posing a risk to the confidentiality and integrity of the affected systems.

Technical Details of CVE-2019-10686

The technical details of CVE-2019-10686 highlight the following:

Vulnerability Description

Type: Server-Side Request Forgery (SSRF)
Affected Version: 1.4.0-SNAPSHOT of Ctrip Apollo API
Exploitation: Misuse of the %23 substring within the /system-info/health endpoint

Affected Systems and Versions

Product: Ctrip Apollo API
Vendor: Ctrip
Affected Version: 1.4.0-SNAPSHOT

Exploitation Mechanism

Attackers can exploit the vulnerability by misusing the %23 substring within the /system-info/health endpoint to perform intranet port scans or trigger unauthorized GET requests.

Mitigation and Prevention

Taking immediate steps and implementing long-term security practices are crucial to mitigating the risks associated with CVE-2019-10686.

Immediate Steps to Take

Update to a patched version that addresses the SSRF vulnerability.
Monitor network traffic for any suspicious activities.
Restrict access to critical APIs and endpoints.

Long-Term Security Practices

Conduct regular security assessments and penetration testing.
Educate developers and system administrators on secure coding practices.
Implement strong access controls and least privilege principles.

Patching and Updates

Apply security patches provided by Ctrip for the Ctrip Apollo API to fix the SSRF vulnerability.