Cisco Small Business RV VPN Router SSL VPN SSL Connection input validation

CVSS Meta Temp Score
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CTI Interest Score
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6.6$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in Cisco Small Business RV VPN Router. Impacted is an unknown function of the component SSL VPN. This manipulation as part of SSL Connection causes input validation. This vulnerability appears as CVE-2020-3358. The attack may be initiated remotely. There is no available exploit. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Cisco Small Business RV VPN Router (Router Operating System) (affected version not known). It has been declared as problematic. Affected by this vulnerability is some unknown functionality of the component SSL VPN. The manipulation as part of a SSL Connection 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. The summary by CVE is:

A vulnerability in the Secure Sockets Layer (SSL) VPN feature for Cisco Small Business RV VPN Routers could allow an unauthenticated, remote attacker to cause the device to unexpectedly restart, causing a denial of service (DoS) condition. The vulnerability is due to a lack of proper input validation of HTTP requests. An attacker could exploit this vulnerability by sending a crafted HTTP request over an SSL connection to the targeted device. A successful exploit could allow the attacker to cause a reload, resulting in a DoS condition.

The weakness was presented 07/16/2020 as cisco-sa-sb-dos-ZN5GvNH7 as confirmed advisory (Website). The advisory is shared at tools.cisco.com. This vulnerability is known as CVE-2020-3358 since 12/12/2019. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available.

Upgrading eliminates this vulnerability.

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Productinfo

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Vendor

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License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.9
VulDB Meta Temp Score: 6.8

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

NVD Base Score: 8.6
NVD Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Input validation
CWE: CWE-20
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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/12/2019 🔍
07/16/2020 +217 days 🔍
07/17/2020 +1 days 🔍
11/04/2020 +110 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco-sa-sb-dos-ZN5GvNH7
Status: Confirmed

CVE: CVE-2020-3358 (🔍)
GCVE (CVE): GCVE-0-2020-3358
GCVE (VulDB): GCVE-100-158713

Entryinfo

Created: 07/17/2020 11:45
Updated: 11/04/2020 10:47
Changes: 07/17/2020 11:45 (40), 07/17/2020 11:50 (12), 11/04/2020 10:47 (1)
Complete: 🔍
Cache ID: 216::103

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