CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.7	$0-$5k	0.00

A vulnerability has been found in Cisco NX-OS on 1000V/2000/3000/9000 (Router Operating System) and classified as problematic. Affected by this vulnerability is an unknown part of the component ARP Handler. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect availability.

The weakness was shared 08/14/2015 as 40469 as confirmed vulnerability alert (Website). The advisory is shared at tools.cisco.com. This vulnerability is known as CVE-2015-4323 since 06/04/2015. The exploitation appears to be easy. The attack needs to be done within the local network. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available.

The commercial vulnerability scanner Qualys is able to test this issue with plugin 43459 (Cisco NX-OS Address Resolution Protocol Denial of Service Vulnerability (Cisco-SA-20150814-CVE-2015-4323)).

Proper firewalling of ARP is able to address this issue.

The vulnerability is also documented in the vulnerability database at X-Force (105647). The entry 77271 is related to this item.

Productinfo

Type

• Router Operating System

Vendor

• Cisco

Name

• NX-OS

Version

• 4.1(2)e1(1b)
• 6.0(2)u5(1.41)
• 6.2(13)
• 6.2(14)s1
• 7.0(3)i2(0.373)
• 7.1(0)zn(91.99)
• 7.3(0)zn(0.9)
• 7.3(0)zn(0.83)

License

• commercial

Support

• end of life (old version)

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 5.7

VulDB Base Score: 6.5
VulDB Temp Score: 5.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Partially

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	unlock	unlock	unlock	unlock
Today	unlock	unlock	unlock	unlock

OpenVAS ID: 103402
OpenVAS Name: Cisco Nexus Operating System Address Resolution Protocol Denial of Service Vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Firewalling: 🔍

Timelineinfo

06/04/2015 🔍
08/14/2015 +71 days 🔍
08/14/2015 +0 days 🔍
08/18/2015 +4 days 🔍
08/19/2015 +1 days 🔍
10/06/2015 +48 days 🔍
06/12/2022 +2441 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: 40469
Status: Confirmed

CVE: CVE-2015-4323 (🔍)
X-Force: 105647 - Cisco Nexus Operating System ARP denial of service
SecurityTracker: 1033321
Vulnerability Center: 53251 - Cisco NX-OS on Nexus Devices Remote DoS Vulnerability in Address Resolution Protocol (ARP) Input Packet Processing, Medium
SecurityFocus: 76367

See also: 🔍

Entryinfo

Created: 08/18/2015 18:14
Updated: 06/12/2022 14:10
Changes: 08/18/2015 18:14 (57), 05/04/2019 19:16 (10), 06/12/2022 14:10 (4)
Complete: 🔍

Discussion

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