Cisco Prime Network Registrar DHCP Server DHCP Request input validation

CVSS Meta Temp Score
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CTI Interest Score
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6.1$0-$5k0.00

Summaryinfo

A vulnerability has been found in Cisco Prime Network Registrar and classified as problematic. This vulnerability affects unknown code of the component DHCP Server. The manipulation as part of DHCP Request leads to input validation. This vulnerability is listed as CVE-2020-3272. The attack may be initiated remotely. There is no available exploit. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Cisco Prime Network Registrar (the affected version unknown) and classified as problematic. This issue affects an unknown part of the component DHCP Server. The manipulation as part of a DHCP Request leads to a input validation vulnerability. Using CWE to declare the problem leads to CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. Impacted is availability. The summary by CVE is:

A vulnerability in the DHCP server of Cisco Prime Network Registrar could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to insufficient input validation of incoming DHCP traffic. An attacker could exploit this vulnerability by sending a crafted DHCP request to an affected device. A successful exploit could allow the attacker to cause a restart of the DHCP server process, causing a DoS condition.

The weakness was presented 05/22/2020 as cisco-sa-cpnr-dhcp-dos-BkEZfhL as confirmed advisory (Website). It is possible to read the advisory at tools.cisco.com. The identification of this vulnerability is CVE-2020-3272 since 12/12/2019. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available.

Upgrading eliminates this vulnerability.

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Productinfo

Vendor

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License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/12/2019 🔍
05/22/2020 +162 days 🔍
05/22/2020 +0 days 🔍
10/19/2020 +150 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco-sa-cpnr-dhcp-dos-BkEZfhL
Status: Confirmed

CVE: CVE-2020-3272 (🔍)
GCVE (CVE): GCVE-0-2020-3272
GCVE (VulDB): GCVE-100-155543

Entryinfo

Created: 05/22/2020 13:43
Updated: 10/19/2020 07:15
Changes: 05/22/2020 13:43 (40), 05/22/2020 13:48 (11), 10/19/2020 07:15 (1)
Complete: 🔍
Cache ID: 216::103

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