CVE-2021-34722 : Vulnerability Insights and Analysis
Discover multiple vulnerabilities in Cisco IOS XR Software allowing unauthorized access and execution of arbitrary commands by an authenticated local attacker.
Multiple vulnerabilities in the CLI of Cisco IOS XR Software could allow an authenticated, local attacker to gain access to the underlying root shell of an affected device and execute arbitrary commands with root privileges.
Understanding CVE-2021-34722
This CVE identifies command injection vulnerabilities in Cisco IOS XR Software that could enable unauthorized access and execution of commands with elevated privileges.
What is CVE-2021-34722?
The CVE-2021-34722 pertains to multiple vulnerabilities in the CLI of Cisco IOS XR Software that could be exploited by a local attacker to attain root shell access and run arbitrary commands with elevated privileges.
The Impact of CVE-2021-34722
The impact of CVE-2021-34722 is significant as it allows an authenticated attacker to execute commands with root privileges on affected devices, potentially leading to unauthorized access and control.
Technical Details of CVE-2021-34722
The technical details of CVE-2021-34722 include vulnerability descriptions, affected systems and versions, and the exploitation mechanism.
Vulnerability Description
The vulnerability in Cisco IOS XR Software enables a local attacker to escalate privileges, gaining access to the root shell and executing unauthorized commands, posing a severe security risk.
Affected Systems and Versions
Cisco IOS XR Software versions are affected by this vulnerability, allowing attackers to exploit the CLI and execute commands with elevated privileges.
Exploitation Mechanism
The exploitation of this vulnerability involves an authenticated, local attacker gaining root shell access on affected devices, enabling arbitrary command execution.
Mitigation and Prevention
To mitigate the risks associated with CVE-2021-34722, immediate steps should be taken, and long-term security practices should be implemented alongside regular patching and updates.
Immediate Steps to Take
Immediate actions involve reviewing and securing access controls, monitoring system logs for suspicious activities, and restricting CLI access to authorized personnel.
Long-Term Security Practices
Long-term security practices include regular security training for staff, implementing least privilege principles, and conducting security audits and assessments.
Patching and Updates
Regularly updating Cisco IOS XR Software to the latest versions provided by Cisco is essential to address known vulnerabilities and improve overall system security.