Cisco NX-OS Nexus 1000V IGMPv2/IGMPv3 Access Control access control

CVSS Meta Temp Score
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CTI Interest Score
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4.6$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Cisco NX-OS Nexus 1000V. This affects an unknown part of the component IGMPv2/IGMPv3 Access Control Handler. This manipulation causes access control. This vulnerability is tracked as CVE-2014-0685. No exploit exists. To fix this issue, it is recommended to deploy a patch.

Detailsinfo

A vulnerability was found in Cisco NX-OS Nexus 1000V (Router Operating System). It has been declared as critical. Affected by this vulnerability is an unknown functionality of the component IGMPv2/IGMPv3 Access Control Handler. The manipulation with an unknown input leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-264. As an impact it is known to affect confidentiality. The summary by CVE is:

Cisco Nexus 1000V InterCloud 5.2(1)IC1(1.2) and earlier for VMware allows remote attackers to bypass ACL deny statements via crafted (1) IGMPv2 or (2) IGMPv3 packets, aka Bug ID CSCug61691.

The weakness was disclosed 05/05/2014 with Cisco as CSCug61691 as confirmed security notice (Website). It is possible to read the advisory at tools.cisco.com. This vulnerability is known as CVE-2014-0685 since 01/02/2014. 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 attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

Applying a patch is able to eliminate this problem. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (92969), SecurityFocus (BID 67213†), SecurityTracker (ID 1030194†) and Vulnerability Center (SBV-45046†). Additional details are provided at tools.cisco.com. The entry VDB-13146 is pretty similar. 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: 5.3
VulDB Meta Temp Score: 4.6

VulDB Base Score: 5.3
VulDB Temp Score: 4.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
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Exploitinginfo

Class: Access control
CWE: CWE-264
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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Threat Intelligenceinfo

Interest: 🔍
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Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
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Timelineinfo

01/02/2014 🔍
05/05/2014 +123 days 🔍
05/05/2014 +0 days 🔍
05/05/2014 +0 days 🔍
05/05/2014 +0 days 🔍
05/06/2014 +1 days 🔍
05/06/2014 +0 days 🔍
05/07/2014 +1 days 🔍
06/18/2014 +42 days 🔍
05/31/2017 +1078 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: CSCug61691
Organization: Cisco
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2014-0685 (🔍)
GCVE (CVE): GCVE-0-2014-0685
GCVE (VulDB): GCVE-100-13147
X-Force: 92969 - Cisco Nexus 1000V ACL security bypass, Medium Risk
SecurityFocus: 67213 - Cisco Nexus 1000V CVE-2014-0685 Multiple Security Bypass Vulnerabilities
SecurityTracker: 1030194 - Cisco NX-OS Nexus 1000V IGMPv2/IGMPv3 Access Control Flaw Lets Remote Users Bypass Security Controls
Vulnerability Center: 45046 - Cisco Nexus 1000V for VMware vSphere Remote Multiple Security Bypass Vulnerabilities in Access Control List, Medium

Misc.: 🔍
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Entryinfo

Created: 05/06/2014 13:02
Updated: 05/31/2017 08:51
Changes: 05/06/2014 13:02 (49), 05/31/2017 08:51 (27)
Complete: 🔍
Cache ID: 216::103

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