VDB-181463 · CVE-2021-1523 · GCVE-0-2021-1523

Cisco Nexus 9000 ACI Mode release of resource

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.
5.1	$0-$5k	0.00

Summaryinfo

A vulnerability identified as problematic has been detected in Cisco Nexus 9000 9000. The impacted element is an unknown function of the component ACI Mode. The manipulation leads to release of resource. This vulnerability is listed as CVE-2021-1523. The attack may be initiated remotely. There is no available exploit. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Cisco Nexus 9000 9000 and classified as problematic. This issue affects some unknown functionality of the component ACI Mode. The manipulation with an unknown input leads to a release of resource vulnerability. Using CWE to declare the problem leads to CWE-772. The product does not release a resource after its effective lifetime has ended, i.e., after the resource is no longer needed. Impacted is availability.

The weakness was presented 08/25/2021 as cisco-sa-n9kaci-queue-wedge-cLDDEfKF. It is possible to read the advisory at tools.cisco.com. The identification of this vulnerability is CVE-2021-1523. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1499 according to MITRE ATT&CK.

Upgrading eliminates this vulnerability.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

Cisco

Name

Nexus 9000

Version

9000

License

commercial

Website

Vendor: https://www.cisco.com/

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

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

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Release of resource
CWE: CWE-772 / CWE-400 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

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: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

11/13/2020 🔍
08/25/2021 +284 days 🔍
08/25/2021 +0 days 🔍
08/29/2021 +4 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco-sa-n9kaci-queue-wedge-cLDDEfKF
Status: Confirmed

CVE: CVE-2021-1523 (🔍)
GCVE (CVE): GCVE-0-2021-1523
GCVE (VulDB): GCVE-100-181463

Entryinfo

Created: 08/25/2021 23:48
Updated: 08/29/2021 09:42
Changes: 08/25/2021 23:48 (38), 08/29/2021 09:39 (2), 08/29/2021 09:42 (1)
Complete: 🔍
Cache ID: 216::103