Cisco Enterprise NFV Infrastructure Software Arbitrary File Read and Write Vulnerability

Vulnerability

A vulnerability in Cisco Enterprise NFV Infrastructure Software (NFVIS) allows an authenticated, remote attacker with administrator privileges to overwrite or read arbitrary files on the underlying operating system. The issue is due to improper input validation in NFVIS filesystem commands. Affected versions include all releases prior to the fixed software updates provided in the Cisco advisory [1].

Exploitation

An attacker with administrator privileges can exploit this vulnerability by using crafted variables during the execution of an affected command. No user interaction is required beyond the attacker's authenticated access [1].

Impact

Successful exploitation allows the attacker to overwrite or read arbitrary files on the underlying OS, potentially leading to information disclosure or system compromise [1].

Mitigation

Cisco has released free software updates to address the vulnerability. Customers should upgrade to the fixed version as specified in the Cisco Security Advisory [1]. No workarounds are available; upgrading is the only mitigation.