CVE-2021-1268
Description
A vulnerability in the IPv6 protocol handling of the management interfaces of Cisco IOS XR Software could allow an unauthenticated, adjacent attacker to cause an IPv6 flood on the management interface network of an affected device. The vulnerability exists because the software incorrectly forwards IPv6 packets that have an IPv6 node-local multicast group address destination and are received on the management interfaces. An attacker could exploit this vulnerability by connecting to the same network as the management interfaces and injecting IPv6 packets that have an IPv6 node-local multicast group address destination. A successful exploit could allow the attacker to cause an IPv6 flood on the corresponding network. Depending on the number of Cisco IOS XR Software nodes on that network segment, exploitation could cause excessive network traffic, resulting in network degradation or a denial of service (DoS) condition.
Risk Information
Associated Vulnerability
| Vulnerability | OS Platform |
|---|---|
| Cisco IOS XR Software IPv6 Flood Denial of Service Vulnerability For Cisco ASR 9000 Series Aggregation Services Routers | NCM |
| Cisco IOS XR Software IPv6 Flood Denial of Service Vulnerability For Cisco Network Convergence System 6000 Series Routers | NCM |
| Cisco IOS XR Software IPv6 Flood Denial of Service Vulnerability For Cisco Network Convergence System 4000 Series | NCM |
| Cisco IOS XR Software IPv6 Flood Denial of Service Vulnerability For Cisco IOS XRv 9000 Router | NCM |
| Cisco IOS XR Software IPv6 Flood Denial of Service Vulnerability For Cisco Network Convergence System 5000 Series | NCM |
| Cisco IOS XR Software IPv6 Flood Denial of Service Vulnerability For Cisco Network Convergence System 5500 Series | NCM |
| Cisco IOS XR Software IPv6 Flood Denial of Service Vulnerability For Cisco Network Convergence System 1000 Series | NCM |
| Cisco IOS XR Software IPv6 Flood Denial of Service Vulnerability For Cisco Network Convergence System 500 Series Routers | NCM |
| Cisco IOS XR Software IPv6 Flood Denial of Service Vulnerability For Cisco 8000 Series Routers | NCM |
| CVE-2021-1268 | NCM |
Patch Details
Click to see the patches provided by ManageEngine for this CVE
| Patch ID | Patch Description |
|---|---|
| PATCH-1705564 | Security Update for Cisco ASR 9000 Series Aggregation Services Routers 5.3.0.1i.BASE |
| PATCH-1705630 | Security Update for Cisco Network Convergence System 6000 Series Routers 6.1.4 |
| PATCH-1705272 | Security Update for Cisco Network Convergence System 4000 Series 7.2.2 |
| PATCH-1705219 | Security Update for Cisco IOS XRv 9000 Router 7.1.2.1i.BASE |
| PATCH-1706021 | Security Update for Cisco Network Convergence System 5000 Series 6.2.1.21i.BASE |
| PATCH-1705220 | Security Update for Cisco Network Convergence System 5500 Series 7.1.2.1i.BASE |
| PATCH-1705124 | Security Update for Cisco Network Convergence System 1000 Series 7.2.1.9i.ROUT |
| PATCH-1705229 | Security Update for Cisco Network Convergence System 500 Series Routers 7.2.1.21i.BASE |
| PATCH-1705230 | Security Update for Cisco 8000 Series Routers 7.2.1.21i.BASE |
References
https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234