CVE-2019-1683 Cisco SPA112, SPA525, and SPA5x5 Series IP Phones Certificate Validation Vulnerability
An attacker can bypass TLS certificate validation to eavesdrop on or redirect SIP calls on affected Cisco IP phones.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2019-1683?
CVE-2019-1683 is a medium-severity vulnerability in Cisco Small Business SPA112 Series IP Phones, published on 25 Feb 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A vulnerability in the certificate handling component of the Cisco SPA112, SPA525, and SPA5X5 Series IP Phones could allow an unauthenticated, remote attacker to listen to or control some aspects of a Transport Level Security (TLS)-encrypted Session Initiation Protocol (SIP) conversation. The vulnerability is due to the improper validation of server certificates. An attacker could exploit this vulnerability by crafting a malicious server certificate to present to the client. An exploit could allow an attacker to eavesdrop on TLS-encrypted traffic and potentially route or redirect calls initiated by an affected device. Affected software include version 7.6.2 of the Cisco Small Business SPA525 Series IP Phones and Cisco Small Business SPA5X5 Series IP Phones and version 1.4.2 of the Cisco Small Business SPA500 Series IP Phones and Cisco Small Business SPA112 Series IP Phones.
Weakness: CWE-295
Which versions are affected by CVE-2019-1683?
It affects 14 products.
Products include Cisco Spa112 Firmware, Cisco Spa500 Firmware, Cisco Spa500ds Firmware, Cisco Spa500s Firmware, Cisco Spa501g Firmware, Cisco Spa502g Firmware and 8 more.
How do I fix CVE-2019-1683?
No fix has been published for CVE-2019-1683 yet. Limit exposure of the affected software until one is available.
Is CVE-2019-1683 being exploited?
There is no known exploitation of CVE-2019-1683 in the wild and no public exploit code.
Other vulnerabilities in Cisco Small Business SPA112 Series IP Phones
- CVE-2023-20126 Cisco SPA112 2-Port Phone Adapters Remote Command Execution Vulnerability
- CVE-2019-15240 Cisco SPA100 Series Analog Telephone Adapters Remote Code Execution Vulnerabilities
- CVE-2019-15241 Cisco SPA100 Series Analog Telephone Adapters Remote Code Execution Vulnerabilities
- CVE-2019-15242 Cisco SPA100 Series Analog Telephone Adapters Remote Code Execution Vulnerabilities
- CVE-2019-15243 Cisco SPA100 Series Analog Telephone Adapters Remote Code Execution Vulnerabilities
Sources
Also known as GHSA-jhfq-9hcr-5qqv.