Cisco NX-OS Fabric Services TCP Packets input validation

CVSS Meta Temp Score
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CTI Interest Score
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7.1$0-$5k0.00

A vulnerability was found in Cisco NX-OS (Router Operating System) (affected version not known). It has been declared as problematic. This vulnerability affects some unknown functionality of the component Fabric Services. The manipulation as part of a TCP Packets 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 availability. CVE summarizes:

A vulnerability in the Cisco Fabric Services component of Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause process crashes, which can result in a denial of service (DoS) condition on an affected system. The vulnerability is due to insufficient validation of TCP packets when processed by the Cisco Fabric Services over IP (CFSoIP) feature. An attacker could exploit this vulnerability by sending a malicious Cisco Fabric Services TCP packet to an affected device. A successful exploit could allow the attacker to cause process crashes, resulting in a device reload and a DoS condition. Note: There are three distribution methods that can be configured for Cisco Fabric Services. This vulnerability affects only distribution method CFSoIP, which is disabled by default. See the Details section for more information.

The weakness was published 08/28/2019 as cisco-sa-20190828-nxos-fsip-do as confirmed advisory (Website). The advisory is available at tools.cisco.com. This vulnerability was named CVE-2019-1962 since 12/06/2018. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. The technical details are unknown and an exploit is not available.

Upgrading eliminates this vulnerability.

Similar entries are available at 141013 and 141012.

Productinfo

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Vendor

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

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

CVSSv3info

VulDB Meta Base Score: 7.1
VulDB Meta Temp Score: 7.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CNA Base Score: 8.6
CNA Vector (Cisco Systems, Inc.): 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
ATT&CK: Unknown

Local: No
Remote: Yes

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: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/06/2018 🔍
08/28/2019 +265 days 🔍
08/29/2019 +1 days 🔍
12/07/2023 +1561 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco-sa-20190828-nxos-fsip-do
Status: Confirmed

CVE: CVE-2019-1962 (🔍)
See also: 🔍

Entryinfo

Created: 08/29/2019 08:52
Updated: 12/07/2023 12:31
Changes: 08/29/2019 08:52 (41), 08/08/2020 09:56 (18), 12/07/2023 12:31 (14)
Complete: 🔍

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