Vulnerability identifier: #VU10107
Vulnerability risk: Low
CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-20
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
Cisco NX-OS
Operating systems & Components /
Operating system
Vendor: Cisco Systems, Inc
Description
The vulnerability allows a remote attacker to cause DoS on the target system.
The weakness exists in management interface access control list (ACL) configuration of Cisco NX-OS System Software due to a bad code fix in the code train that could allow traffic to the management interface to be misclassified and not match the proper configured ACLs. A remote attacker can send specially crafted traffic to the management interface, bypass the
configured management interface ACLs and impact the CPU of the targeted
device, resulting in a DoS condition.
Mitigation
The vulnerability is fixed in the following versions: 8.2(0)SK(0.170), 8.1(1.4)S0, 7.3(3)N1(1), 7.3(3)N1(0.480), 7.3(3)N1(0.3), 7.3(3)D1(0.4), 7.3(2)D1(2), 7.3(2)D1(1A).
Vulnerable software versions
Cisco NX-OS: 7.3.2 N1.0.6 - 8.8.3.5 S0
External links
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180117-nxos
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.