Security

Cisco EoL SPA112 2-Port Phone Adapters are affected by critical RCE

Cisco is warning customers of a critical remote code execution vulnerability affecting its EoL SPA112 2-Port Phone Adapters.

Cisco is warning of a critical remote code execution (RCE) vulnerability, tracked as CVE-2023-20126 (CVSS score of 9.8), impacting SPA112 2-Port phone adapters. The company product has reached end-of-life (EoL).

The vulnerability resides in the web-based management interface of the Cisco SPA112 2-Port Phone Adapters, an unauthenticated, remote attacker can exploit the flaw to execute arbitrary code on an affected device.

In order to exploit the flaw, an attacker has to upgrade an affected device to a crafted version of the firmware. 

“This vulnerability is due to a missing authentication process within the firmware upgrade function.” reads the advisory published by Cisco. “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.”

The issue was reported by CataLpa of Dbappsecurity Co., Ltd. Hatlab.

The IT giant has not addressed the issue because SPA112 2-Port phone adapters reached EoL on June 1, 2020. The company also warned that there are no workarounds for the CVE-2023-20126 vulnerability.

“Cisco has not released firmware updates to address this vulnerability. There are no workarounds that address this vulnerability.” continues the advisory.

Cisco encouraged customers to migrate to a Cisco ATA 190 Series Analog Telephone Adapter.

The company is not aware of attacks in the wild exploiting this vulnerability.

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Pierluigi Paganini

(SecurityAffairs – hacking, Phone Adapters)

Pierluigi Paganini

Pierluigi Paganini is member of the ENISA (European Union Agency for Network and Information Security) Threat Landscape Stakeholder Group and Cyber G7 Group, he is also a Security Evangelist, Security Analyst and Freelance Writer. Editor-in-Chief at "Cyber Defense Magazine", Pierluigi is a cyber security expert with over 20 years experience in the field, he is Certified Ethical Hacker at EC Council in London. The passion for writing and a strong belief that security is founded on sharing and awareness led Pierluigi to find the security blog "Security Affairs" recently named a Top National Security Resource for US. Pierluigi is a member of the "The Hacker News" team and he is a writer for some major publications in the field such as Cyber War Zone, ICTTF, Infosec Island, Infosec Institute, The Hacker News Magazine and for many other Security magazines. Author of the Books "The Deep Dark Web" and “Digital Virtual Currency and Bitcoin”.

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