VDB-183244 · CVE-2021-34723 · GCVE-0-2021-34723

Cisco IOS XE SD-WAN CLI exposure 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.
6.8	$0-$5k	0.00

Summaryinfo

A vulnerability described as critical has been identified in Cisco IOS XE SD-WAN. The affected element is an unknown function of the component CLI. Executing a manipulation can lead to exposure of resource. The identification of this vulnerability is CVE-2021-34723. The attack may be launched remotely. There is no exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability has been found in Cisco IOS XE SD-WAN (Router Operating System) (unknown version) and classified as critical. This vulnerability affects an unknown code block of the component CLI. The manipulation with an unknown input leads to a exposure of resource vulnerability. The CWE definition for the vulnerability is CWE-668. The product exposes a resource to the wrong control sphere, providing unintended actors with inappropriate access to the resource. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was shared 09/23/2021 as cisco-sa-iosxesdwan-arbfileov-MVOF3ZZn. The advisory is shared for download at tools.cisco.com. This vulnerability was named CVE-2021-34723 since 06/15/2021. There are neither technical details nor an exploit publicly available.

Upgrading eliminates this vulnerability.

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Productinfo

Type

Router Operating System

Vendor

Cisco

Name

IOS XE SD-WAN

License

commercial

Website

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

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.0
VulDB Meta Temp Score: 6.8

VulDB Base Score: 7.2
VulDB Temp Score: 6.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 6.7
CNA Vector (Cisco Systems, Inc.): 🔍

CVSSv2info

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

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

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

Exploitinginfo

Class: Exposure of resource
CWE: CWE-668 / CWE-200 / CWE-284
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
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

06/15/2021 🔍
09/23/2021 +100 days 🔍
09/23/2021 +0 days 🔍
10/01/2021 +8 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco-sa-iosxesdwan-arbfileov-MVOF3ZZn
Status: Confirmed

CVE: CVE-2021-34723 (🔍)
GCVE (CVE): GCVE-0-2021-34723
GCVE (VulDB): GCVE-100-183244
scip Labs: https://www.scip.ch/en/?labs.20150108

Entryinfo

Created: 09/23/2021 12:25
Updated: 10/01/2021 14:29
Changes: 09/23/2021 12:25 (48), 10/01/2021 14:29 (1)
Complete: 🔍
Cache ID: 216::103