CVE-2017-12229 : Exploit Details and Defense Strategies

A vulnerability in the REST API of the web-based user interface (web UI) of Cisco IOS XE 3.1 through 16.5 could allow an unauthorized attacker to bypass authentication and gain unauthorized access.

Understanding CVE-2017-12229

This CVE identifies a flaw in the REST API of the web-based user interface of Cisco IOS XE, potentially enabling remote attackers to bypass authentication.

What is CVE-2017-12229?

The vulnerability lies in insufficient input validation for the REST API, allowing attackers to send malicious requests to affected devices.
Successful exploitation grants unauthorized access to the web UI of the affected software.

The Impact of CVE-2017-12229

Unauthorized individuals could bypass authentication measures and gain access to sensitive information on affected devices.

Technical Details of CVE-2017-12229

This section provides detailed technical insights into the vulnerability.

Vulnerability Description

The flaw allows unauthorized access to the web UI of Cisco IOS XE versions 3.1 through 16.5.

Affected Systems and Versions

Product: Cisco IOS XE
Versions: 3.1 through 16.5

Exploitation Mechanism

Attackers exploit the lack of input validation in the REST API by sending malicious requests to impacted devices.

Mitigation and Prevention

Learn how to mitigate the risks associated with CVE-2017-12229.

Immediate Steps to Take

Disable the HTTP Server feature on affected Cisco devices.
Implement network segmentation to limit access to vulnerable systems.

Long-Term Security Practices

Regularly update Cisco IOS XE software to patched versions.
Conduct security assessments to identify and address vulnerabilities.

Patching and Updates

Apply patches provided by Cisco to address the vulnerability and enhance system security.