Cisco fixes critical flaw in network management platform

Cisco has urged its customers to update their Firepower Management Center (FMC) after patching a critical vulnerability that could have given attackers administrative privileges on affected devices.

Dubbed CVE-2019-16028, the vulnerability has been found in the firm’s platform for managing its network security products, including firewalls or malware protection. It has been given a CVE rating of 9.8, meaning it has been branded as ‘critical’

“The vulnerability is due to improper handling of Lightweight Directory Access Protocol (LDAP) authentication responses from an external authentication server,” an advisory from the company said.

“An attacker could exploit this vulnerability by sending crafted HTTP requests to an affected device. A successful exploit could allow the attacker to gain administrative access to the web-based management interface of the affected device.

“The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory.”

The flaw affects numerous versions of FMC, including several that have reached end-of-life, namely 6.1.0, 6.2.0, 6.2.1, and 6.2.2. Cisco has advised businesses using these iterations to upgrade to a release that integrates the fix before patching, such as versions 6.2.3, 6.3.0, 6.4.0, or 6.5.0.

The networking giant’s latest security issue has arisen just days before the firm is set to host its flagship Cisco Live 2020 conference in Barcelona.

The company has endured a topsy-turvy 2019, with a spate of security issues and negative headlines affecting its fortunes. For example, in August last year, three major vulnerabilities were found in the most popular switches used by its small and medium-sized business (SMB) customers.

This is in addition to its WebEx and Zoom platforms being hit with the ‘prying eye’ flaw in October, that would allow an attacker to use an enumeration attack to find open calls or meetings, if successfully exploited.