Cisco IOS Access Point 802.11r Fast Transition resource consumption

CVSS Meta Temp Score
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CTI Interest Score
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5.7$0-$5k0.00

Summaryinfo

A vulnerability was found in Cisco IOS Access Point. It has been classified as problematic. This vulnerability affects unknown code of the component 802.11r Fast Transition. The manipulation leads to resource consumption. This vulnerability is documented as CVE-2018-0441. The attack requires being on the local network. There is not any exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Cisco IOS Access Point (Router Operating System) (unknown version). It has been rated as problematic. This issue affects an unknown code block of the component 802.11r Fast Transition. The manipulation with an unknown input leads to a resource consumption vulnerability. Using CWE to declare the problem leads to CWE-400. The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. Impacted is availability. The summary by CVE is:

A vulnerability in the 802.11r Fast Transition feature set of Cisco IOS Access Points (APs) Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to a corruption of certain timer mechanisms triggered by specific roaming events. This corruption will eventually cause a timer crash. An attacker could exploit this vulnerability by sending malicious reassociation events multiple times to the same AP in a short period of time, causing a DoS condition on the affected AP.

The bug was discovered 10/17/2018. The weakness was released 10/17/2018 with Cisco as cisco-sa-20181017-ap-ft-dos as confirmed advisory (Website). It is possible to read the advisory at tools.cisco.com. The identification of this vulnerability is CVE-2018-0441 since 11/26/2017. Access to the local network is required for this attack. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 118461 (Cisco Wireless LAN Controller Multiple Vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CISCO and running in the context c.

Upgrading eliminates this vulnerability. A possible mitigation has been published 2 hours after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (118461) and SecurityFocus (BID 105680†). Entries connected to this vulnerability are available at VDB-125709, VDB-125712 and VDB-125713. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.8
VulDB Meta Temp Score: 5.7

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.4
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Resource consumption
CWE: CWE-400 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 118461
Nessus Name: Cisco Wireless LAN Controller Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Timelineinfo

11/26/2017 🔍
10/17/2018 +324 days 🔍
10/17/2018 +0 days 🔍
10/17/2018 +0 days 🔍
10/17/2018 +0 days 🔍
10/17/2018 +0 days 🔍
10/18/2018 +1 days 🔍
10/26/2018 +8 days 🔍
05/30/2023 +1677 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco-sa-20181017-ap-ft-dos
Organization: Cisco
Status: Confirmed

CVE: CVE-2018-0441 (🔍)
GCVE (CVE): GCVE-0-2018-0441
GCVE (VulDB): GCVE-100-125711
SecurityFocus: 105680 - Cisco IOS Access Points Software 802.11r CVE-2018-0441 Denial of Service Vulnerability
SecurityTracker: 1041918

See also: 🔍

Entryinfo

Created: 10/18/2018 06:44
Updated: 05/30/2023 08:47
Changes: 10/18/2018 06:44 (67), 04/05/2020 09:10 (6), 05/30/2023 08:47 (4)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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