Cisco NX-OS 5500/5600 SNMP Packet input validation

CVSS Meta Temp Score
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CTI Interest Score
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7.0$0-$5k0.00

A vulnerability was found in Cisco NX-OS 5500/5600 (Router Operating System). It has been classified as critical. Affected is some unknown processing of the component SNMP Packet Handler. The manipulation with an unknown input leads to a input validation vulnerability. CWE is classifying the issue as CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. This is going to have an impact on availability. CVE summarizes:

Cisco NX-OS 7.1(1)N1(1) on Nexus 5500, 5600, and 6000 devices does not properly validate PDUs in SNMP packets, which allows remote attackers to cause a denial of service (SNMP application restart) via a crafted packet, aka Bug ID CSCut84645.

The weakness was published 03/02/2016 with Cisco as cisco-sa-20160302-n5ksnmp as confirmed advisory (Website). The advisory is available at tools.cisco.com. This vulnerability is traded as CVE-2015-6260 since 08/17/2015. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. The technical details are unknown and an exploit is not available.

The vulnerability scanner Nessus provides a plugin with the ID 89783 (Cisco Nexus 5500 / 5600 / 6000 SNMP DoS (cisco-sa-20160302-n5ksnmp)), 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 43485 (Cisco NX-OS Software SNMP Packet Denial of Service Vulnerability (cisco-sa-20160302-n5ksnmp)).

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

The vulnerability is also documented in the databases at X-Force (111183) and Tenable (89783). Similar entries are available at 81151 and 81148.

Productinfo

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Version

License

Support

  • end of life (old version)

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
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CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.0

VulDB Base Score: 7.5
VulDB Temp Score: 6.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 89783
Nessus Name: Cisco Nexus 5500 / 5600 / 6000 SNMP DoS (cisco-sa-20160302-n5ksnmp)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 103402
OpenVAS Name: Cisco NX-OS Software SNMP Packet Denial of Service Vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

08/17/2015 🔍
03/01/2016 +197 days 🔍
03/01/2016 +0 days 🔍
03/01/2016 +0 days 🔍
03/02/2016 +0 days 🔍
03/03/2016 +1 days 🔍
03/03/2016 +0 days 🔍
03/05/2016 +2 days 🔍
03/08/2016 +3 days 🔍
07/08/2022 +2312 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco-sa-20160302-n5ksnmp
Organization: Cisco
Status: Confirmed

CVE: CVE-2015-6260 (🔍)
X-Force: 111183 - Cisco NX-OS SNMP denial of service
SecurityTracker: 1035158
Vulnerability Center: 57015 - [cisco-sa-20160302-n5ksnmp] Cisco NX-OS Remote DoS via SNMP Packetc, High
SecurityFocus: 83943 - Cisco NX-OS Software CVE-2015-6260 Denial of Service Vulnerability

See also: 🔍

Entryinfo

Created: 03/03/2016 10:52
Updated: 07/08/2022 21:05
Changes: 03/03/2016 10:52 (78), 09/01/2018 08:44 (10), 07/08/2022 21:05 (4)
Complete: 🔍

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