Risk | Medium |
Patch available | YES |
Number of vulnerabilities | 1 |
CVE-ID | CVE-2020-3168 |
CWE-ID | CWE-399 |
Exploitation vector | Network |
Public exploit | N/A |
Vulnerable software Subscribe |
Cisco Nexus 1000v Application Virtual Switch Server applications / Virtualization software Cisco NX-OS Operating systems & Components / Operating system |
Vendor | Cisco Systems, Inc |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
EUVDB-ID: #VU25654
Risk: Medium
CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-3168
CWE-ID:
CWE-399 - Resource Management Errors
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to improper resource allocation during failed CLI login attempts when login parameters that are part of the Secure Login Enhancements capability are configured on an affected device. A remote attacker can perform a high amount of login attempts against the affected device and cause it to become inaccessible to other users, resulting in a denial of service condition requiring a manual power cycle of the VSM to recover.
MitigationInstall updates from vendor's website.
Vulnerable software versionsCisco Nexus 1000v Application Virtual Switch: All versions
Cisco NX-OS: 5.2.1 SV3.4.1a
External linksQ & A
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.