Cisco NX-OS Fabric Services memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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8.4$0-$5k0.00

Summaryinfo

A vulnerability labeled as critical has been found in Cisco NX-OS. The affected element is an unknown function of the component Fabric Services. Executing a manipulation can lead to memory corruption. This vulnerability is tracked as CVE-2018-0314. The attack can be launched remotely. No exploit exists. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Cisco NX-OS (Router Operating System) (the affected version unknown). It has been declared as critical. This vulnerability affects an unknown part of the component Fabric Services. 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 confidentiality, integrity, and availability. CVE summarizes:

A vulnerability in the Cisco Fabric Services (CFS) component of Cisco FXOS Software and Cisco NX-OS Software could allow an unauthenticated, remote attacker to execute arbitrary code on an affected device. The vulnerability exists because the affected software insufficiently validates Cisco Fabric Services packet headers when the software processes packet data. An attacker could exploit this vulnerability by sending a maliciously crafted Cisco Fabric Services packet to an affected device. A successful exploit could allow the attacker to cause a buffer overflow condition on the device, which could allow the attacker to execute arbitrary code on the device. This vulnerability affects the following if configured to use Cisco Fabric Services: Firepower 4100 Series Next-Generation Firewalls, Firepower 9300 Security Appliance, MDS 9000 Series Multilayer Switches, Nexus 2000 Series Fabric Extenders, Nexus 3000 Series Switches, Nexus 3500 Platform Switches, Nexus 5500 Platform Switches, Nexus 5600 Platform Switches, Nexus 6000 Series Switches, Nexus 7000 Series Switches, Nexus 7700 Series Switches, Nexus 9000 Series Switches in standalone NX-OS mode, Nexus 9500 R-Series Line Cards and Fabric Modules, UCS 6100 Series Fabric Interconnects, UCS 6200 Series Fabric Interconnects, UCS 6300 Series Fabric Interconnects. Cisco Bug IDs: CSCvd69943, CSCve02429, CSCve02433, CSCve02435, CSCve02445, CSCve04859.

The bug was discovered 06/20/2018. The weakness was disclosed 06/20/2018 with Cisco as cisco-sa-20180620-fx-os-fabric / CSCve04859 as confirmed advisory (Website). The advisory is shared for download at tools.cisco.com. This vulnerability was named CVE-2018-0314 since 11/27/2017. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 03/28/2023).

The vulnerability scanner Nessus provides a plugin with the ID 110687 (Cisco NX-OS Cisco Fabric Services Multiple Vulnerabilities.), 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 c. The commercial vulnerability scanner Qualys is able to test this issue with plugin 316285 (Cisco NX-OS Software Cisco Fabric Services Arbitrary Code Execution Vulnerability(cisco-sa-20180620-fx-os-fabric-execution)).

Upgrading eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (110687) and SecurityFocus (BID 104516†). The entries VDB-119748, VDB-119750, VDB-119751 and VDB-119769 are pretty similar. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.4

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

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

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 110687
Nessus Name: Cisco NX-OS Cisco Fabric Services Multiple Vulnerabilities.
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
Exposure Time: 🔍

Timelineinfo

11/27/2017 🔍
06/20/2018 +204 days 🔍
06/20/2018 +0 days 🔍
06/20/2018 +0 days 🔍
06/20/2018 +0 days 🔍
06/20/2018 +0 days 🔍
06/21/2018 +1 days 🔍
06/25/2018 +4 days 🔍
03/28/2023 +1737 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco-sa-20180620-fx-os-fabric / CSCve04859
Organization: Cisco
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2018-0314 (🔍)
GCVE (CVE): GCVE-0-2018-0314
GCVE (VulDB): GCVE-100-119752
SecurityFocus: 104516 - Cisco FXOS and NX-OS Software CVE-2018-0314 Arbitrary Code Execution Vulnerability
SecurityTracker: 1041169

See also: 🔍

Entryinfo

Created: 06/21/2018 08:27
Updated: 03/28/2023 11:16
Changes: 06/21/2018 08:27 (69), 02/20/2020 20:29 (7), 03/28/2023 11:16 (4)
Complete: 🔍
Cache ID: 216::103

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