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.
4.2	$0-$5k	0.00

A vulnerability classified as critical was found in Cisco NX-OS (Router Operating System) (unknown version). Affected by this vulnerability is an unknown code block of the component Output Handler. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, and integrity. The summary by CVE is:

Cisco NX-OS allows local users to gain privileges and execute arbitrary commands via shell metacharacters in a command that calls the system library function, aka Bug IDs CSCtf23559 and CSCtf27780.

The weakness was presented 10/04/2013 with Cisco as CSCtf23559 as confirmed advisory (Website). It is possible to read the advisory at tools.cisco.com. The public release was coordinated in cooperation with Cisco. This vulnerability is known as CVE-2012-4076 since 07/31/2012. Attacking locally is a requirement. The requirement for exploitation is a single authentication. The technical details are unknown and an exploit is not publicly available.

Applying a patch is able to eliminate this problem.

The vulnerability is also documented in the vulnerability database at X-Force (87678). See 10607, 10606, 10605 and 10604 for similar entries.

Productinfo

Type

• Router Operating System

Vendor

• Cisco

Name

• NX-OS

License

• commercial

CPE 2.3info

• 🔍

CPE 2.2info

• 🔍

CVSSv4info

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

CVSSv3info

VulDB Meta Base Score: 4.4
VulDB Meta Temp Score: 4.2

VulDB Base Score: 4.4
VulDB Temp Score: 4.2
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: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Timelineinfo

07/31/2012 🔍
10/04/2013 +430 days 🔍
10/04/2013 +0 days 🔍
10/04/2013 +0 days 🔍
10/08/2013 +4 days 🔍
10/09/2013 +1 days 🔍
10/13/2013 +4 days 🔍
10/28/2013 +15 days 🔍
08/26/2017 +1398 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: CSCtf23559
Organization: Cisco
Status: Confirmed
Coordinated: 🔍

CVE: CVE-2012-4076 (🔍)
X-Force: 87678
Vulnerability Center: 42114 - Cisco NX-OS Local Arbitrary Code Execution Via Shell Metacharacters, Medium
SecurityFocus: 62848 - Cisco NX-OS CVE-2012-4076 Local Arbitrary Command Execution Vulnerability
Secunia: 55205 - Cisco Multiple Products NX-OS Pipe Handling OS Command Injection Vulnerability, Less Critical
OSVDB: 98126

See also: 🔍

Entryinfo

Created: 10/08/2013 18:34
Updated: 08/26/2017 06:43
Changes: 10/08/2013 18:34 (59), 08/26/2017 06:43 (11)
Complete: 🔍
Committer:

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