Cisco NX-OS TCP Stack resource management

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

Summaryinfo

A vulnerability was found in Cisco NX-OS. It has been rated as problematic. This issue affects some unknown processing of the component TCP Stack. This manipulation causes resource management. This vulnerability is handled as CVE-2015-0718. The attack can be initiated remotely. There is not any exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Cisco NX-OS (Router Operating System) (version unknown). It has been declared as critical. Affected by this vulnerability is an unknown function of the component TCP Stack. The manipulation with an unknown input leads to a resource management vulnerability. The CWE definition for the vulnerability is CWE-399. As an impact it is known to affect availability.

The weakness was released 03/02/2016 with Cisco as cisco-sa-20160302-netstack as confirmed advisory (Website). It is possible to read the advisory at tools.cisco.com. This vulnerability is known as CVE-2015-0718 since 01/07/2015. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 89784 (Cisco Nexus TCP Packet TIME_WAIT State Handling DoS (cisco-sa-20160302-netstack)), 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 43486 (Cisco NX-OS Software TCP Netstack Denial of Service Vulnerability (cisco-sa-20160302-netstack)).

Upgrading eliminates this vulnerability.Proper firewalling of tcp is able to address this issue. The best possible mitigation is suggested to be upgrading to the latest version. 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 (111184), Tenable (89784), SecurityFocus (BID 83950†) and Vulnerability Center (SBV-57014†). Entries connected to this vulnerability are available at VDB-81150 and VDB-81148. Be aware that VulDB is the high quality 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: 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: 🔍
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: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 89784
Nessus Name: Cisco Nexus TCP Packet TIME_WAIT State Handling DoS (cisco-sa-20160302-netstack)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 100742
OpenVAS Name: Cisco NX-OS Software TCP Netstack Denial of Service Vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Firewalling: 🔍

Timelineinfo

01/07/2015 🔍
03/01/2016 +419 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-netstack
Organization: Cisco
Status: Confirmed

CVE: CVE-2015-0718 (🔍)
GCVE (CVE): GCVE-0-2015-0718
GCVE (VulDB): GCVE-100-81151
X-Force: 111184 - Cisco NX-OS TCP stack denial of service
SecurityFocus: 83950 - Cisco NX-OS Software TCP Netstack CVE-2015-0718 Denial of Service Vulnerability
SecurityTracker: 1035159
Vulnerability Center: 57014 - [cisco-sa-20160302-netstack] Cisco NX-OS and Unified Computing System Remote DoS in TCP Netstack, Critical

See also: 🔍

Entryinfo

Created: 03/03/2016 10:52
Updated: 07/08/2022 21:20
Changes: 03/03/2016 10:52 (69), 05/04/2019 19:17 (18), 07/08/2022 21:20 (4)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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