Study of potential vulnerabilities of CISCO routers to external injections

DOI: 10.31673/2409-7292.2024.020001

Abstract

The article is devoted to the analysis and assessment of the security of Cisco network routers in the context of external injections. External injections are attacks that consist in introducing malicious code or data into the system through external sources. Previous research and information about the vulnerabilities of Cisco routers indicate serious threats to the security of these devices. Several researchers and cybersecurity professionals have already discovered and documented different types of attacks and vulnerabilities that can be used to attack Cisco routers. These studies provide important context for understanding potential security threats to Cisco routers and help identify areas that require further research and security measures. The article examines in detail the potential threats and vulnerabilities to which Cisco routers are exposed, and a systematic analysis of the results of research aimed at identifying these vulnerabilities is carried out. Brute-force attack on the TACACS+ protocol and hacking of Cisco routers using SYNful Knock are discussed in detail. A conclusion was made regarding the possibility of preventing potential vulnerabilities of Cisco routers to external injections. The results of the study emphasize the need for constant monitoring and improvement of the security of networks that use Cisco routers. External injections can lead to serious consequences, including loss of data confidentiality, violation of integrity and availability of network resources. The research and practical recommendations provided in this article can serve as a basis for further measures to ensure security and protection against external injections in networks using Cisco routers.

Keywords: Cisco, router, injection, TACACS, SYNful Knock.