Using Referer Field for Authentication

The referer field in HTTP requests can be easily modified and, as such, is not a valid means of message integrity checking.

CVEs (1)

CVE VENDORS PRODUCTS UPDATED PUBLISHED CVSS
CVE-2023-20025 1Cisco 4Rv016 Firmware Rv042 FirmwareRv042g Firmware+1 more Jun 17, 2026 Jan 20, 2023 N/A· v4 9.8 CRITICAL· v3 N/A· v2 A vulnerability in the web-based management interface of Cisco Small Business RV016, RV042, RV042G, and RV082 Routers could allow an unauthenticated, remote attacker to bypass authentication on an affected device. Thi...Show more A vulnerability in the web-based management interface of Cisco Small Business RV016, RV042, RV042G, and RV082 Routers could allow an unauthenticated, remote attacker to bypass authentication on an affected device. This vulnerability is due to improper validation of user input within incoming HTTP packets. An attacker could exploit this vulnerability by sending a crafted HTTP request to the web-based management interface. A successful exploit could allow the attacker to bypass authentication and gain root access on the underlying operating system.Show less

CVE

VENDORS

PRODUCTS

UPDATED

PUBLISHED

CVSS

CVE-2023-20025

1Cisco

4Rv016 Firmware

Rv042 FirmwareRv042g Firmware+1 more

Jun 17, 2026

Jan 20, 2023

N/A· v4

9.8 CRITICAL· v3

N/A· v2

A vulnerability in the web-based management interface of Cisco Small Business RV016, RV042, RV042G, and RV082 Routers could allow an unauthenticated, remote attacker to bypass authentication on an affected device. This vulnerability is due to improper validation of user input within incoming HTTP packets. An attacker could exploit this vulnerability by sending a crafted HTTP request to the web-based management interface. A successful exploit could allow the attacker to bypass authentication and gain root access on the underlying operating system.Show less