CVE-2023-20126 Cisco SPA112 2-Port Phone Adapters Remote Command Execution Vulnerability
Unauthenticated attackers can execute arbitrary code with full privileges on Cisco SPA112 adapters by exploiting missing authentication in the firmware upgrade function.
- 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-2023-20126?
CVE-2023-20126 is a critical missing authorization vulnerability in Cisco Small Business IP Phones, published on 4 May 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A vulnerability in the web-based management interface of Cisco SPA112 2-Port Phone Adapters could allow an unauthenticated, remote attacker to execute arbitrary code on an affected device. This vulnerability is due to a missing authentication process within the firmware upgrade function. An attacker could exploit this vulnerability by upgrading an affected device to a crafted version of firmware. A successful exploit could allow the attacker to execute arbitrary code on the affected device with full privileges. Cisco has not released firmware updates to address this vulnerability.
Weakness: CWE-306
Which versions are affected by CVE-2023-20126?
It affects 1 product.
Products include Cisco Spa112 Firmware.
How do I fix CVE-2023-20126?
No fix has been published for CVE-2023-20126 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2023-20126 being exploited?
There is no known exploitation of CVE-2023-20126 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Other vulnerabilities in Cisco Small Business IP Phones
- 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
- CVE-2019-15244 Cisco SPA100 Series Analog Telephone Adapters Remote Code Execution Vulnerabilities
Sources
Also known as GHSA-x7fj-4595-2pp2.