Horizon Alert
Summary of the vulnerability and why it matters
The server's Internet Key Exchange version 1 (IKEv1) implementation contains a flaw that could allow unauthorized access to sensitive information. This vulnerability exists in specific versions of Cisco IOS, IOS XE, and IOS XR software. Successful exploitation could result in the disclosure of information residing in the device's memory.
- Vulnerable Cisco network software
- Flaw allows access to device memory
- Potential for sensitive information disclosure
Attack Path
How an attacker could exploit the issue
An attacker can obtain sensitive information from device memory by sending a specific type of request to a vulnerable server. This request targets the way the server negotiates security associations using the IKEv1 protocol. Successful exploitation allows attackers to retrieve contents from the device's memory.
- Network exposure
- Attacker sends SA negotiation request
- Control and impact: sensitive data disclosure
Live Threat
Current exploitation, exposure, and threat context
This vulnerability allows remote attackers to obtain sensitive information from device memory through a security association negotiation request. Exploitation could lead to the disclosure of confidential data. Organizations with affected Cisco devices should prioritize addressing this issue.
- Attackers with low skill levels.
- No access or conditions required.
- High business risk and urgency.
Priority actions
Operational Fix
Recommended remediation, mitigation, and detection steps
Organizations facing this vulnerability should prioritize actions to protect sensitive information. This issue allows remote attackers to retrieve sensitive data from device memory through a specific negotiation request. Addressing this requires a structured approach to identify affected systems, mitigate risks, implement vendor-provided solutions, and confirm successful remediation while monitoring for any related malicious activity.
- Find all affected Cisco devices.
- Restrict network access to vulnerable devices.
- Apply vendor updates and verify fixes.
