Rewterz Threat Advisory – Multiple Cisco Security Vulnerabilities

Severity

High

Analysis Summary

CVE-2020-3330

The vulnerability exists because a system account has a default and static password. An attacker could exploit this vulnerability by using this default account to connect to the affected system. A successful exploit could allow the attacker to gain full control of an affected device.

CVE-2020-3323

The vulnerability is due to improper validation of user-supplied input in the web-based management interface. An attacker could exploit this vulnerability by sending crafted HTTP requests to a targeted device. A successful exploit could allow the attacker to execute arbitrary code as the root user on the underlying operating system of the affected device.

CVE-2020-3144

The vulnerability is due to improper session management on affected devices. An attacker could exploit this vulnerability by sending a crafted HTTP request to the affected device. A successful exploit could allow the attacker to gain administrative access on the affected device.

CVE-2020-3331

The vulnerability is due to improper validation of user-supplied input data by the web-based management interface. An attacker could exploit this vulnerability by sending crafted requests to a targeted device. A successful exploit could allow the attacker to execute arbitrary code with the privileges of the root user.

CVE-2020-3140

The vulnerability is due to insufficient validation of user input on the web management interface. An attacker could exploit this vulnerability by submitting a malicious request to an affected system. An exploit could allow the attacker to gain administrative-level privileges on the system. The attacker needs a valid username to exploit this vulnerability. 

CVE-2020-3381

The vulnerability is due to a lack of proper validation of files that are uploaded to an affected device. An attacker could exploit this vulnerability by uploading a crafted file to an affected system. An exploit could allow the attacker to view or modify arbitrary files on the targeted system.

CVE-2020-3387

The vulnerability is due to insufficient input sanitization during user authentication processing. An attacker could exploit this vulnerability by sending a crafted response to the Cisco SD-WAN vManage Software. A successful exploit could allow the attacker to access the software and execute commands they should not be authorized to execute.

CVE-2020-3385

The vulnerability is due to insufficient handling of malformed packets. An attacker could exploit this vulnerability by sending crafted packets through an affected device. A successful exploit could allow the attacker to cause the device to reboot, resulting in a DoS condition.

CVE-2020-3351

The vulnerability is due to improper validation of fields in Cisco SD-WAN peering messages that are encapsulated in UDP packets. An attacker could exploit this vulnerability by sending crafted UDP messages to the targeted system. A successful exploit could allow the attacker to cause services on the device to fail, resulting in a DoS condition that could impact the targeted device and other devices that depend on it.

CVE-2020-3180

The vulnerability exists because the affected software has a user account with a default, static password. An attacker could exploit this vulnerability by remotely connecting to an affected system by using this account. A successful exploit could allow the attacker to log in by using this account with root privileges.

CVE-2020-3357

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.

CVE-2020-3358

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.

CVE-2020-3145, CVE-2020-3146

The vulnerabilities are due to improper validation of user-supplied data in the web-based management interface. An attacker could exploit these vulnerabilities by sending malicious HTTP requests to a targeted device. A successful exploit could allow the attacker to execute arbitrary code on the underlying operating system of the affected device as a high-privilege user.

CVE-2020-3369

The vulnerability is due to improper processing of FTP traffic. An attacker could exploit this vulnerability by sending crafted FTP packets through an affected device. A successful exploit could allow the attacker to make the device reboot continuously, causing a DoS condition.

CVE-2020-3332

The vulnerability is due to insufficient input validation of user-supplied data. An attacker could exploit this vulnerability by sending a crafted request to the web-based management interface of an affected device. A successful exploit could allow the attacker to execute arbitrary shell commands or scripts with root privileges on the affected device.

CVE-2020-3388

The vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by authenticating to the device and submitting crafted input to the CLI. The attacker must be authenticated to access the CLI. A successful exploit could allow the attacker to execute commands with root privileges.

Impact

• Full control of affected device
• Execute arbitrary code
• Authentication Bypass
• Privilege Escalation
• Remote Code Execution
• Denial of Service
• Command Injection

Affected Vendors

Cisco

Affected Products

• Cisco Small Business RV110W Wireless-N VPN Firewall firmware
• Cisco Small Business RV110W RV130 RV130W and RV215W Routers
• Cisco Prime License Manager (PLM) Software
• Cisco SD-WAN vManage Software
• Cisco SD-WAN vEdge Routers
• Cisco SD-WAN Solution
• Cisco Small Business RV340 RV340W RV345 and RV345P Dual WAN Gigabit VPN Routers
• Cisco RV110W RV130 RV130W and RV215W Routers

Remediation

Refer to Cisco advisory for the complete list of affected products and it’s respective patches.

https://tools.cisco.com/security/center/publicationListing.x?product=Cisco&sort=-day_sir#~Vulnerabilities