Cisco NX-OS Output input validation

CVSS Meta Temp Score
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CTI Interest Score
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4.2$0-$5k0.00

Summaryinfo

A vulnerability was found in Cisco NX-OS. It has been classified as critical. Affected is an unknown function of the component Output Handler. This manipulation causes input validation. This vulnerability appears as CVE-2012-4076. There is no available exploit. To fix this issue, it is recommended to deploy a patch.

Detailsinfo

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 databases at X-Force (87678), SecurityFocus (BID 62848†), OSVDB (98126†), Secunia (SA55205†) and Vulnerability Center (SBV-42114†). See VDB-10607, VDB-10606, VDB-10605 and VDB-10604 for similar entries. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

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

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
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Exploitinginfo

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

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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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 (🔍)
GCVE (CVE): GCVE-0-2012-4076
GCVE (VulDB): GCVE-100-10603
X-Force: 87678
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
Vulnerability Center: 42114 - Cisco NX-OS Local Arbitrary Code Execution Via Shell Metacharacters, Medium

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:
Cache ID: 216::103

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