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Specifically, the security flaw identified as CVE-2023-20076 enables threat actors to access the operating system and exploit opportunities for remote command execution on Cisco IOx, an application environment enabling consistent deployment of standalone applications with network infrastructure and docker tools. It is utilized by numerous enterprises across various sectors including manufacturing, energy, and public domains.
Cisco fixes security flaw enabling stealthy hacking
In its security advisory, Cisco states that attackers could exploit the vulnerability by deploying and activating an application within the Cisco IOx environment using a self-generated activation file. Successful exploitation could allow attackers to execute arbitrary commands with root privileges on the server's operating system.
iOS XE users without native docker support as well as users running Industrial ISR Router Series 800, CGR1000 compute modules, IC3000 industrial compute gateways, IR510 WPAN industrial routers, and Cisco Catalyst Access Points (COS-AP) endpoints may all be affected by this security flaw.
To exploit CVE-2023-20076, attackers must be authenticated with administrator privileges on the system. The company also adds that Catalyst 9000 Series switches, IOS XR and NX-OS software, as well as Meraki products, will not be affected.
However, according to researchers at Trellix, the first to discover the vulnerability, malicious actors could easily combine this loophole with others in network attack campaigns. Moreover, they have various other methods to obtain administrator privileges such as exploiting default login credentials or engaging in deception.
Once authenticated, CVE-2023-20076 could be exploited for unrestricted access, allowing hackers to implant covert malware into the system and persist throughout reboots and software upgrades. The malware will continue to run until the device is restored to factory settings or manually wiped.
As of now, fortunately, there have been no reported attacks exploiting the CVE-2023-20076 security flaw. However, users should update their Cisco products to the latest versions to ensure network security.
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