CVE-2019-1922 Cisco IP Phone 7800 and 8800 Series Session Initiation Protocol Denial of Service Vulnerability
Remote attackers can cause Cisco IP phones to reboot and fail registration by sending malformed SIP packets during the registration process.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2019-1922?
CVE-2019-1922 is a medium-severity vulnerability in Cisco IP Phone 8800 Series Software, published on 6 Jul 2019. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
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.
Weakness: CWE-476
Which versions are affected by CVE-2019-1922?
It affects 12 products.
Products include Cisco Ip Conference Phone 7832 Firmware, Cisco Ip Conference Phone 8832 Firmware, Cisco Ip Phone 7811 Firmware, Cisco Ip Phone 7821 Firmware, Cisco Ip Phone 7841 Firmware, Cisco Ip Phone 7861 Firmware and 6 more.
How do I fix CVE-2019-1922?
No fix has been published for CVE-2019-1922 yet. Limit exposure of the affected software until one is available.
Is CVE-2019-1922 being exploited?
There is no known exploitation of CVE-2019-1922 in the wild and no public exploit code.
Other vulnerabilities in Cisco IP Phone 8800 Series Software
- CVE-2020-3111 Cisco IP Phone Remote Code Execution and Denial of Service Vulnerability
- CVE-2019-1635 Cisco IP Phone 7800 Series and 8800 Series Session Initiation Protocol XML Denial of Service Vulnerability
- CVE-2021-1379 Memory corruption in Cisco IP Phones with Multiplatform Firmware
- CVE-2019-1684 Denial of service in Cisco IP Phone 8800 Series Software
- CVE-2021-34711 Cisco IP Phone Software Arbitrary File Read Vulnerability
Sources
Also known as GHSA-996r-f8xw-6h6p.