medium5.3
CVE-2019-1922
A vulnerability in Cisco SIP IP Phone Software for Cisco IP Phone 7800 Series and 8800 Series could allow an unauthenticated, remote attacker to cause a denial…
Impact
A vulnerability in Cisco SIP IP Phone Software for Cisco IP Phone 7800 Series and 8800 Series could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected phone. The vulnerability is due to insufficient validation of input Session Initiation Protocol (SIP) packets. An attacker could exploit this vulnerability by altering the SIP replies that are sent to the affected phone during the registration process. A successful exploit could allow the attacker to cause the phone to reboot and not complete the registration process.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Cisco | Ip Conference Phone 7832 Firmware | All versions |
| Cisco | Ip Conference Phone 8832 Firmware | Versions 11.5\(1\), 12.5\(1\) |
| Cisco | Ip Phone 7811 Firmware | All versions |
| Cisco | Ip Phone 7821 Firmware | All versions |
| Cisco | Ip Phone 7841 Firmware | All versions |
| Cisco | Ip Phone 7861 Firmware | All versions |
| Cisco | Ip Phone 8811 Firmware | Versions 11.5\(1\), 12.5\(1\) |
| Cisco | Ip Phone 8841 Firmware | Versions 11.5\(1\), 12.5\(1\) |
| Cisco | Ip Phone 8845 Firmware | Versions 11.5\(1\), 12.5\(1\) |
| Cisco | Ip Phone 8851 Firmware | Versions 11.5\(1\), 12.5\(1\) |
| Cisco | Ip Phone 8861 Firmware | Versions 11.5\(1\), 12.5\(1\) |
| Cisco | Ip Phone 8865 Firmware | Versions 11.5\(1\), 12.5\(1\) |