Cisco Wireless LAN Controller SNMP resource management

CVSS Meta Temp Score
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CTI Interest Score
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5.0$0-$5k0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in Cisco Wireless LAN Controller. Affected by this vulnerability is an unknown functionality of the component SNMP. The manipulation results in resource management. This vulnerability is known as CVE-2017-12278. It is possible to launch the attack remotely. No exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic has been found in Cisco Wireless LAN Controller (Wireless LAN Software) (affected version unknown). Affected is an unknown functionality of the component SNMP. The manipulation with an unknown input leads to a resource management vulnerability. CWE is classifying the issue as CWE-399. This is going to have an impact on availability. CVE summarizes:

A vulnerability in the Simple Network Management Protocol (SNMP) subsystem of Cisco Wireless LAN Controllers could allow an authenticated, remote attacker to cause an affected device to restart, resulting in a denial of service (DoS) condition. The vulnerability is due to a memory leak that occurs on an affected device after the device fails to deallocate a buffer that is used when certain MIBs are polled. An attacker who knows the SNMP Version 2 SNMP Read string or has valid SNMP Version 3 credentials for an affected device could repeatedly poll the affected MIB object IDs (OIDs) and consume available memory on the device. When memory is sufficiently depleted on the device, the device will restart, resulting in a DoS condition. Cisco Bug IDs: CSCvc71674.

The bug was discovered 11/01/2017. The weakness was published 11/02/2017 as cisco-sa-20171101-wlc1 as confirmed advisory (Website). The advisory is shared for download at tools.cisco.com. This vulnerability is traded as CVE-2017-12278 since 08/03/2017. It is possible to launch the attack remotely. The successful exploitation needs a authentication. There are neither technical details nor an exploit publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 104460 (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 l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 316170 (Cisco Wireless LAN Controller SNMP Memory Leak Denial of Service Vulnerability (cisco-sa-20171101-wlc1)).

Upgrading eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (104460) and SecurityFocus (BID 101642†). Similar entries are available at VDB-108897 and VDB-108904. Once again VulDB remains the best 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: 5.3
VulDB Meta Temp Score: 5.2

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

NVD Base Score: 6.3
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

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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Nessus ID: 104460
Nessus Name: Cisco Wireless LAN Controller Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

08/03/2017 🔍
11/01/2017 +90 days 🔍
11/01/2017 +0 days 🔍
11/01/2017 +0 days 🔍
11/02/2017 +1 days 🔍
11/02/2017 +0 days 🔍
11/02/2017 +0 days 🔍
11/08/2017 +6 days 🔍
01/21/2021 +1170 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco-sa-20171101-wlc1
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-12278 (🔍)
GCVE (CVE): GCVE-0-2017-12278
GCVE (VulDB): GCVE-100-108900
SecurityFocus: 101642 - Cisco Wireless LAN Controller CVE-2017-12278 Denial of Service Vulnerability
SecurityTracker: 1039712

See also: 🔍

Entryinfo

Created: 11/02/2017 23:06
Updated: 01/21/2021 14:24
Changes: 11/02/2017 23:06 (69), 12/02/2019 19:16 (6), 01/21/2021 14:24 (2)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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