VDB-125705 · CVE-2018-0381 · BID 105685

Cisco Aironet Watchdog Timer resource consumption

CVSS Meta Temp Score
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in Cisco Aironet. This affects an unknown function of the component Watchdog Timer. The manipulation leads to resource consumption. This vulnerability is referenced as CVE-2018-0381. The attack needs to be initiated within the local network. No exploit is available.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Cisco Aironet (Wireless LAN Software) (version now known). This issue affects some unknown processing of the component Watchdog Timer. 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 Cisco Aironet Series Access Points (APs) software could allow an authenticated, adjacent attacker to cause an affected device to reload unexpectedly, resulting in a denial of service (DoS) condition. The vulnerability is due to a deadlock condition that may occur when an affected AP attempts to dequeue aggregated traffic that is destined to an attacker-controlled wireless client. An attacker who can successfully transition between multiple Service Set Identifiers (SSIDs) hosted on the same AP while replicating the required traffic patterns could trigger the deadlock condition. A watchdog timer that detects the condition will trigger a reload of the device, resulting in a DoS condition while the device restarts.

The bug was discovered 10/17/2018. The weakness was published 10/17/2018 with Cisco as cisco-sa-20181017-aironet-dos as confirmed advisory (Website). The advisory is shared at tools.cisco.com. The identification of this vulnerability is CVE-2018-0381 since 11/26/2017. Access to the local network is required for this attack to succeed. Required for exploitation is a simple authentication. Neither technical details nor an exploit are publicly available.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 105685†). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.1
VulDB Meta Temp Score: 5.1

VulDB Base Score: 3.5
VulDB Temp Score: 3.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day 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 🔍
10/18/2018 +1 days 🔍
05/30/2023 +1685 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco-sa-20181017-aironet-dos
Organization: Cisco
Status: Confirmed

CVE: CVE-2018-0381 (🔍)
GCVE (CVE): GCVE-0-2018-0381
GCVE (VulDB): GCVE-100-125705
SecurityFocus: 105685 - Cisco Aironet Access Points CVE-2018-0381 Denial of Service Vulnerability
SecurityTracker: 1041929

Entryinfo

Created: 10/18/2018 06:44
Updated: 05/30/2023 08:29
Changes: 10/18/2018 06:44 (59), 04/05/2020 08:24 (4), 05/30/2023 08:29 (3)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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