CVE-2023-20018

A vulnerability in the web-based management interface of Cisco IP Phone 7800 and 8800 Series Phones could allow an unauthenticated, remote attacker to bypass authentication on an affected device. This vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by sending a crafted request to the web-based management interface. A successful exploit could allow the attacker to access certain parts of the web interface that would normally require authentication.

• cisco ip phone 7800 firmware (< 14.1\(1\)sr2) • cisco ip phone 7811 firmware (< 14.1\(1\)sr2) • cisco ip phone 7821 firmware (< 14.1\(1\)sr2) • cisco ip phone 7832 firmware (< 14.1\(1\)sr2) • cisco ip phone 7841 firmware (< 14.1\(1\)sr2) • cisco ip phone 7861 firmware (< 14.1\(1\)sr2) • cisco ip phone 8800 firmware (< 14.1\(1\)sr2) • cisco ip phone 8811 firmware (< 14.1\(1\)sr2) • cisco ip phone 8821 firmware (< 14.1\(1\)sr2) • cisco ip phone 8821-ex firmware (< 14.1\(1\)sr2) • cisco ip phone 8831 firmware (< 14.1\(1\)sr2) • cisco ip phone 8832 firmware (< 14.1\(1\)sr2) • cisco ip phone 8841 firmware (< 14.1\(1\)sr2) • cisco ip phone 8845 firmware (< 14.1\(1\)sr2) • cisco ip phone 8851 firmware (< 14.1\(1\)sr2) • cisco ip phone 8861 firmware (< 14.1\(1\)sr2) • cisco ip phone 8865 firmware (< 14.1\(1\)sr2) • cisco ip phones 8832 firmware (< 14.1\(1\)sr2) • cisco unified ip phone 8851nr firmware (< 14.1\(1\)sr2) • cisco unified ip phone 8865nr firmware (< 14.1\(1\)sr2) • cisco wireless ip phone 8821 firmware (< 11.0\(6\)sr4) • cisco wireless ip phone 8821-ex firmware (< 11.0\(6\)sr4)