Horizon Alert
Summary of the vulnerability and why it matters
The Common Industrial Protocol (CIP) feature in Cisco IOS is vulnerable due to improper parsing of crafted CIP packets. An unauthenticated, remote attacker could exploit this flaw by sending specially crafted packets to an affected device. Successful exploitation could cause the device to reload, leading to a denial-of-service condition.
- Vulnerable Cisco IOS CIP feature
- Improper packet parsing
- Device reload, denial of service
Attack Path
How an attacker could exploit the issue
This vulnerability affects Cisco IOS software when the Common Industrial Protocol (CIP) feature is enabled. An attacker can exploit this by sending specially crafted CIP packets to an affected device. Successful exploitation could cause the device to reload, leading to a denial of service for the organization.
- Exposure: Devices with CIP enabled.
- Attacker access: Unauthenticated, remote.
- Trigger: Sending crafted CIP packets.
- Impact: Device reload, denial of service.
Live Threat
Current exploitation, exposure, and threat context
This vulnerability could allow an unauthenticated, remote attacker to cause a denial-of-service condition by sending specially crafted network packets. Successful exploitation would result in an affected device reloading, interrupting operations. The Common Industrial Protocol (CIP) feature in Cisco IOS is the affected component.
- Likely attacker skill level: Low.
- Required access or conditions: Network access.
- Business risk or urgency: Moderate.
Priority actions
Operational Fix
Recommended remediation, mitigation, and detection steps
The identified vulnerabilities in Cisco IOS software could allow remote attackers to cause devices to reload, leading to denial of service. This impacts the availability of network devices and related business operations. The Common Industrial Protocol (CIP) feature is implicated, with vulnerabilities arising from improper parsing of crafted packets.
- Find affected Cisco IOS assets.
- Reduce exposure or isolate risk.
- Apply vendor fixes and verify.
- Monitor for related issues.
