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Denial of service in Cisco Prime Network Registrar



Published: 2020-05-21
Severity Medium
Patch available YES
Number of vulnerabilities 1
CVE ID CVE-2020-3272
CWE ID CWE-20
Exploitation vector Network
Public exploit N/A
Vulnerable software
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Cisco Prime Network Registrar
Other software / Other software solutions

Vendor Cisco Systems, Inc

Security Advisory

This security advisory describes one medium risk vulnerability.

1) Input validation error

Severity: Medium

CVSSv3: 6.5 [CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C] [PCI]

CVE-ID: CVE-2020-3272

CWE-ID: CWE-20 - Improper Input Validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input in the DHCP server. A remote attacker can send a specially crafted DHCP request and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Cisco Prime Network Registrar: 8.3.0, 9.0, 9.1, 10.0, 10.1

CPE External links

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cpnr-dhcp-dos-BkEZfhLP

Q & 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.