CVE-2018-0470 : What You Need to Know
Learn about CVE-2018-0470, a vulnerability in Cisco IOS XE Software's web framework that allows attackers to induce a denial of service condition by triggering a buffer overflow on affected devices. Find out the impact, affected systems, exploitation mechanism, and mitigation steps.
A vulnerability in the web framework of Cisco IOS XE Software could allow an unauthorized attacker to trigger a buffer overflow condition, leading to a denial of service (DoS) situation.
Understanding CVE-2018-0470
This CVE involves a weakness in Cisco IOS XE Software's web framework that could be exploited by an attacker to induce a buffer overflow on a targeted device, resulting in a DoS.
What is CVE-2018-0470?
The vulnerability arises from the improper handling of malformed HTTP packets by the affected software when directed towards a device. Attackers can exploit this by sending modified HTTP packets to vulnerable devices, triggering a buffer overflow state and causing a DoS.
The Impact of CVE-2018-0470
The vulnerability has a CVSS base score of 8.6, indicating a high severity level due to the potential for unauthorized attackers to disrupt services and cause denial of service on affected devices.
Technical Details of CVE-2018-0470
This section provides more technical insights into the vulnerability.
Vulnerability Description
The vulnerability allows attackers to exploit the web framework of Cisco IOS XE Software, inducing a buffer overflow condition by sending malformed HTTP packets to vulnerable devices.
Affected Systems and Versions
- Product: Cisco IOS XE Software
- Vendor: Cisco
- Affected Version: n/a
Exploitation Mechanism
- Attackers send modified HTTP packets to vulnerable devices
- Improper handling of these packets triggers a buffer overflow state
Mitigation and Prevention
Protecting systems from CVE-2018-0470 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Apply vendor-provided patches and updates promptly
- Implement network segmentation to limit the impact of potential attacks
- Monitor network traffic for any suspicious activities
Long-Term Security Practices
- Regularly update and patch software and firmware
- Conduct security assessments and penetration testing
- Educate users and IT staff on cybersecurity best practices
Patching and Updates
- Regularly check for security advisories from Cisco
- Apply patches and updates as soon as they are available to mitigate the vulnerability