Cisco IOS XE 16.1.1 MAC Address resource management

CVSS Meta Temp Score
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CTI Interest Score
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6.2$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in Cisco IOS XE 16.1.1. Affected is an unknown function of the component MAC Address Handler. Performing a manipulation with the input 0000:0000:0000 results in resource management. This vulnerability is identified as CVE-2015-6431. The attack can only be performed from the local network. There is not any exploit available. It is suggested to install a patch to address this issue.

Detailsinfo

A vulnerability was found in Cisco IOS XE 16.1.1 (Router Operating System). It has been classified as critical. This affects an unknown code of the component MAC Address Handler. The manipulation with the input value 0000:0000:0000 leads to a resource management vulnerability. CWE is classifying the issue as CWE-399. This is going to have an impact on availability. The summary by CVE is:

Cisco IOS XE 16.1.1 allows remote attackers to cause a denial of service (device reload) via a packet with the 00-00-00-00-00-00 source MAC address, aka Bug ID CSCux48405.

The weakness was released 12/21/2015 with Cisco as cisco-sa-2015-1221-iosxe / CSCux48405 as confirmed advisory (Website). The advisory is shared at tools.cisco.com. This vulnerability is uniquely identified as CVE-2015-6431 since 08/17/2015. The exploitability is told to be easy. The attack needs to be initiated within the local network. No form of authentication is needed for exploitation. Technical details are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 87847 (Cisco IOS XE Source MAC Address DoS (CSCux48405)), 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.

Applying a patch is able to eliminate this problem. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (87847), SecurityFocus (BID 79654†), SecurityTracker (ID 1034514†) and Vulnerability Center (SBV-55381†). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.3

VulDB Base Score: 6.5
VulDB Temp Score: 6.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
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: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 87847
Nessus Name: Cisco IOS XE Source MAC Address DoS (CSCux48405)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

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

Timelineinfo

08/17/2015 🔍
12/21/2015 +126 days 🔍
12/21/2015 +0 days 🔍
12/21/2015 +0 days 🔍
12/21/2015 +0 days 🔍
12/22/2015 +1 days 🔍
12/22/2015 +0 days 🔍
12/22/2015 +0 days 🔍
12/23/2015 +1 days 🔍
01/11/2016 +19 days 🔍
06/19/2018 +890 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco-sa-2015-1221-iosxe / CSCux48405
Organization: Cisco
Status: Confirmed

CVE: CVE-2015-6431 (🔍)
GCVE (CVE): GCVE-0-2015-6431
GCVE (VulDB): GCVE-100-79881

OVAL: 🔍

SecurityFocus: 79654 - Cisco IOS XE Software CVE-2015-6431 Denial of Service Vulnerability
SecurityTracker: 1034514
Vulnerability Center: 55381 - [cisco-sa-2015-1221-iosxe] Cisco IOS XE Denali 16.1.1 Remote DoS via Crafted Packets, Medium

scip Labs: https://www.scip.ch/en/?labs.20150108

Entryinfo

Created: 12/22/2015 23:06
Updated: 06/19/2018 21:07
Changes: 12/22/2015 23:06 (74), 06/19/2018 21:07 (11)
Complete: 🔍
Cache ID: 216::103

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

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