SB2019110801 - Multiple vulnerabilities in Cisco Small Business RV Series Routers
Published: November 8, 2019 Updated: November 8, 2019
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 2 vulnerabilities.
1) Deserialization of Untrusted Data (CVE-ID: CVE-2019-15271)
CWE-ID: CWE-502 - Deserialization of Untrusted Data
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Amber
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to insecure input validation when processing serialized data in the web-based management interface. A remote authenticated attacker can send a specially crafted HTTP request to the targeted device and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
2) Input validation error (CVE-ID: CVE-2019-15957)
CWE-ID: CWE-20 - Improper input validation
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to inject arbitrary commands on the target system.
The vulnerability exists due to insufficient validation of user-supplied input in the web-based management interface. A remote authenticated administrator can provide malicious input to a specific field in the web-based management interface of an affected device and execute arbitrary commands on the underlying Linux operating system.
Remediation
Install update from vendor's website.