Cisco IOS XE 9000 DHCP Message resource management

CVSS Meta Temp Score
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CTI Interest Score
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7.1$0-$5k0.00

Summaryinfo

A vulnerability has been found in Cisco IOS XE 9000 and classified as problematic. This affects an unknown function of the component DHCP Message Handler. This manipulation causes resource management. This vulnerability is handled as CVE-2022-20847. The attack can be initiated remotely. There is not any exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Cisco IOS XE 9000 (Router Operating System). It has been declared as problematic. Affected by this vulnerability is an unknown part of the component DHCP Message Handler. The manipulation with an unknown input leads to a resource management vulnerability. The CWE definition for the vulnerability is CWE-399. As an impact it is known to affect availability. The summary by CVE is:

A vulnerability in the DHCP processing functionality of Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. This vulnerability is due to the improper processing of DHCP messages. An attacker could exploit this vulnerability by sending malicious DHCP messages to an affected device. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition.

The weakness was released 10/01/2022 as cisco-sa-wlc-dhcp-dos-76pCjPxK. It is possible to read the advisory at tools.cisco.com. This vulnerability is known as CVE-2022-20847 since 11/02/2021. The technical details are unknown and an exploit is not publicly available.

Upgrading eliminates this vulnerability.

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Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.1
VulDB Meta Temp Score: 7.1

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

NVD Base Score: 7.5
NVD Vector: 🔍

CNA Base Score: 8.6
CNA Vector (Cisco Systems, Inc.): 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Resource management
CWE: CWE-399 / CWE-404
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

11/02/2021 🔍
10/01/2022 +332 days 🔍
10/01/2022 +0 days 🔍
10/29/2022 +28 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco-sa-wlc-dhcp-dos-76pCjPxK
Status: Confirmed

CVE: CVE-2022-20847 (🔍)
GCVE (CVE): GCVE-0-2022-20847
GCVE (VulDB): GCVE-100-210031
scip Labs: https://www.scip.ch/en/?labs.20150108

Entryinfo

Created: 10/01/2022 08:35
Updated: 10/29/2022 09:11
Changes: 10/01/2022 08:35 (51), 10/29/2022 09:11 (11)
Complete: 🔍
Cache ID: 216::103

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