Cisco RV340/RV340W/RV345/RV345P SSL VPN SSL Connection input validation

CVSS Meta Temp Score
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CTI Interest Score
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8.2$0-$5k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in Cisco RV340, RV340W, RV345 and RV345P. This issue affects some unknown processing of the component SSL VPN. The manipulation as part of SSL Connection results in input validation. This vulnerability is reported as CVE-2020-3357. The attack can be launched remotely. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Cisco RV340, RV340W, RV345 and RV345P (Router Operating System) (affected version unknown). It has been classified as critical. Affected is an unknown functionality of the component SSL VPN. The manipulation as part of a SSL Connection leads to a input validation vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

A vulnerability in the Secure Sockets Layer (SSL) VPN feature of Cisco Small Business RV340, RV340W, RV345, and RV345P Dual WAN Gigabit VPN Routers could allow an unauthenticated, remote attacker to execute arbitrary code on an affected device or cause the device to reload, resulting in a denial of service (DoS) condition. The vulnerability exists because HTTP requests are not properly validated. An attacker could exploit this vulnerability by sending a crafted HTTP request over an SSL connection to an affected device. A successful exploit could allow the attacker to remotely execute arbitrary code on the device or cause the device to reload, resulting in a DoS condition.

The weakness was disclosed 07/16/2020 as cisco-sa-sb-rce-dos-9ZAjkx4 as confirmed advisory (Website). The advisory is shared for download at tools.cisco.com. This vulnerability is traded as CVE-2020-3357 since 12/12/2019. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are neither technical details nor an exploit publicly available.

Upgrading eliminates this vulnerability.

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Productinfo

Type

Vendor

Name

License

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: 🔍

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-rce-dos-9ZAjkx4
Status: Confirmed

CVE: CVE-2020-3357 (🔍)
GCVE (CVE): GCVE-0-2020-3357
GCVE (VulDB): GCVE-100-158712

Entryinfo

Created: 07/17/2020 11:45
Updated: 11/04/2020 10:39
Changes: 07/17/2020 11:45 (40), 07/17/2020 11:50 (12), 11/04/2020 10:39 (1)
Complete: 🔍
Cache ID: 216::103

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