7.5
High
Exploited
CVE-2017-12233 Cisco IOS Software Common Industrial Protocol Request Denial-of-Service Vulnerability
Active exploitation observed
· CISA KEV catalogue
Required action
Apply updates per vendor instructions.
Ransomware campaigns
Not observed so far
Weakness
CWE-20
Description
Multiple vulnerabilities in the implementation of the Common Industrial Protocol (CIP) feature in Cisco IOS 12.4 through 15.6 could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition. The vulnerabilities are due to the improper parsing of crafted CIP packets destined to an affected device. An attacker could exploit these vulnerabilities by sending crafted CIP packets to be processed by an affected device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition. Cisco Bug IDs: CSCuz95334.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Cisco IOS | Versions not published |
References
- tools.cisco.com tools.cisco.com
- 101038 www.securityfocus.com
- 1039459 www.securitytracker.com
Timeline
- Published
- Added to the KEV catalogue
- Last modified
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