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CVE-2020-3357

Severity CVSS v4.0:
Pending analysis
Type:
CWE-20 Input Validation
Publication date:
16/07/2020
Last modified:
07/11/2023

Description

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.

Impact

Vector 3.x
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 9.80 CRITICAL
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x
9.80
Severity 3.x
CRITICAL
Vector 2.0
AV:N/AC:L/Au:N/C:C/I:C/A:C CVSS v2.0 Severity and Metrics:

Base Score: 10.00 HIGH
Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C

Attack Vector (AV): Network
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): Complete
Integrity (I): Complete
Availability (A): Complete

Base Score 2.0
10.00
Severity 2.0
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:cisco:rv340_dual_wan_gigabit_vpn_router_firmware:*:*:*:*:*:*:*:* 1.0.03.18 (excluding)
cpe:2.3:h:cisco:rv340_dual_wan_gigabit_vpn_router:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:rv340w_dual_wan_gigabit_wireless-ac_vpn_router_firmware:*:*:*:*:*:*:*:* 1.0.03.18 (excluding)
cpe:2.3:h:cisco:rv340w_dual_wan_gigabit_wireless-ac_vpn_router:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:rv345_dual_wan_gigabit_vpn_router_firmware:*:*:*:*:*:*:*:* 1.0.03.18 (excluding)
cpe:2.3:h:cisco:rv345_dual_wan_gigabit_vpn_router:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:rv345p_dual_wan_gigabit_poe_vpn_router_firmware:*:*:*:*:*:*:*:* 1.0.03.18 (excluding)
cpe:2.3:h:cisco:rv345p_dual_wan_gigabit_poe_vpn_router:-:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools