CVE-2017-12228 : Security Advisory and Response
Discover the vulnerability in Cisco IOS and IOS XE versions 12.4 through 15.6 and 3.3 through 16.4. Learn how attackers can exploit insufficient certificate validation to gain unauthorized access and decrypt confidential information.
A weakness has been discovered in the Cisco Network Plug and Play application for Cisco IOS versions 12.4 through 15.6 and Cisco IOS XE versions 3.3 through 16.4. This vulnerability can be exploited by an unauthorized and remote attacker to gain access to sensitive data through the use of an invalid certificate. The software fails to adequately validate certificates, allowing attackers to intercept and decrypt confidential information.
Understanding CVE-2017-12228
This CVE identifies a vulnerability in Cisco IOS and IOS XE that could lead to unauthorized access to sensitive data.
What is CVE-2017-12228?
The vulnerability in the Cisco Network Plug and Play application of Cisco IOS and IOS XE versions allows attackers to exploit insufficient certificate validation, potentially leading to man-in-the-middle attacks.
The Impact of CVE-2017-12228
The vulnerability enables unauthorized access to sensitive data and the potential decryption of confidential information by attackers.
Technical Details of CVE-2017-12228
This section provides technical details about the vulnerability.
Vulnerability Description
The vulnerability arises from insufficient certificate validation in the affected software, allowing attackers to exploit the weakness by providing a crafted certificate to gain unauthorized access.
Affected Systems and Versions
- Product: Cisco IOS and IOS XE
- Versions: 12.4 through 15.6 for Cisco IOS and 3.3 through 16.4 for Cisco IOS XE
Exploitation Mechanism
- Attackers can exploit the vulnerability by supplying a specially crafted certificate to a vulnerable device.
- Successful exploitation allows attackers to intercept and decrypt confidential information from user connections.
Mitigation and Prevention
Protective measures and steps to mitigate the vulnerability.
Immediate Steps to Take
- Apply security patches provided by Cisco to address the vulnerability.
- Implement network segmentation to limit the impact of potential attacks.
Long-Term Security Practices
- Regularly update and patch software to prevent known vulnerabilities.
- Conduct security assessments and audits to identify and address potential weaknesses.
Patching and Updates
- Stay informed about security advisories and updates from Cisco.
- Ensure timely application of patches to secure systems against known vulnerabilities.