Cisco NX-OS Fibre Channel over Ethernet Frame memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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6.5$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in Cisco NX-OS. This impacts an unknown function of the component Fibre Channel over Ethernet Frame Handler. The manipulation leads to memory corruption. This vulnerability is referenced as CVE-2017-6655. The attack needs to be initiated within the local network. No exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Cisco NX-OS (Router Operating System) (the affected version is unknown) and classified as critical. This issue affects an unknown code of the component Fibre Channel over Ethernet Frame Handler. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is availability.

The bug was discovered 06/07/2017. The weakness was published 06/07/2017 with Cisco as cisco-sa-20170607-nxos as confirmed advisory (Website). It is possible to read the advisory at tools.cisco.com. The identification of this vulnerability is CVE-2017-6655 since 03/09/2017. The attack needs to be initiated within the local network. 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 100840 (Cisco NX-OS Fibre Channel over Ethernet DoS (cisco-sa-20170607-nxos)), 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 316124 (Cisco NX-OS Software Fibre Channel over Ethernet Denial of Service Vulnerability (cisco-sa-20170607-nxos)).

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

The vulnerability is also documented in the databases at Tenable (100840), SecurityFocus (BID 98991†) and SecurityTracker (ID 1038628†). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.8
VulDB Meta Temp Score: 6.7

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

Vendor Base Score (Cisco): 7.4
Vendor Vector (Cisco): 🔍

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: Memory corruption
CWE: CWE-119
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: 100840
Nessus Name: Cisco NX-OS Fibre Channel over Ethernet DoS (cisco-sa-20170607-nxos)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 103402
OpenVAS Name: Cisco NX-OS Software Fibre Channel over Ethernet Denial of Service Vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Timelineinfo

03/09/2017 🔍
06/07/2017 +90 days 🔍
06/07/2017 +0 days 🔍
06/07/2017 +0 days 🔍
06/07/2017 +0 days 🔍
06/08/2017 +1 days 🔍
06/09/2017 +1 days 🔍
06/13/2017 +4 days 🔍
06/16/2017 +3 days 🔍
12/26/2020 +1289 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco-sa-20170607-nxos
Researcher: Cisco
Organization: Cisco
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-6655 (🔍)
GCVE (CVE): GCVE-0-2017-6655
GCVE (VulDB): GCVE-100-102155
SecurityFocus: 98991 - Cisco NX-OS Software CVE-2017-6655 Denial of Service Vulnerability
SecurityTracker: 1038628

Entryinfo

Created: 06/09/2017 09:22
Updated: 12/26/2020 17:06
Changes: 06/09/2017 09:22 (85), 10/15/2019 15:53 (6), 12/26/2020 17:03 (3), 12/26/2020 17:06 (1)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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