6.5
CVE-2021-1389
- EPSS 1.22%
- Veröffentlicht 04.02.2021 17:15:18
- Zuletzt bearbeitet 21.11.2024 05:44:14
- Erkennungen
LoginCisco IOS XR and Cisco NX-OS Software IPv6 Access Control List Bypass Vulnerability
A vulnerability in the IPv6 traffic processing of Cisco IOS XR Software and Cisco NX-OS Software for certain Cisco devices could allow an unauthenticated, remote attacker to bypass an IPv6 access control list (ACL) that is configured for an interface of an affected device. The vulnerability is due to improper processing of IPv6 traffic that is sent through an affected device. An attacker could exploit this vulnerability by sending crafted IPv6 packets that traverse the affected device. A successful exploit could allow the attacker to access resources that would typically be protected by the interface ACL.
| Typ | Quelle | Score | Percentile |
|---|---|---|---|
| EPSS | FIRST.org | 1.22% | 0.648 |
| Quelle | Base Score | Exploit Score | Impact Score | Vector String |
|---|---|---|---|---|
| NIST | 6.5 | 3.9 | 2.5 |
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
|
| NIST | 6.4 | 10 | 4.9 |
AV:N/AC:L/Au:N/C:P/I:P/A:N
|
| Cisco PSIRT | 5.8 | 3.9 | 1.4 |
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
|
CWE-284 Improper Access Control
The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ipv6-acl-CHgdYk8j