The weekend starts here… right after you’ve installed these critical Cisco bug patches

Cisco admins, maybe you’d like to clear your Friday, because there’s a fresh batch of critical-rated vulnerabilities to assess and patch as needed.

The three worst bugs lie in Cisco’s Prime Infrastructure and Digital Network Architecture (DNA) Center products, and are among 26 bugs disclosed this week.

One of the critical-rated programming cockups is a permission error that can be exploited to perform arbitrary file upload. An attacker could send a file using TFTP, allowing the miscreant to run commands on a Cisco Prime Infrastructure devices without authentication.

Admins can apply the patch, or they can disable TFTP and use SFTP or the Secure Copy Protocol instead.

DNA Center’s two critical vulnerabilities are CVE-2018-15386 and CVE-2018-0448.

In CVE-2018-15386, an insecure default configuration can give a remote hacker unauthenticated access to critical management functions. In CVE-2018-0448, a number of critical management functions are insufficiently protected: “An attacker could exploit this vulnerability by sending a valid identity management request to the affected system,” according to Switchzilla, letting miscreants modify the system and create new users.

There are also seven vulnerabilities rated high severity, in the table below…

The remaining vulnerabilities are rated medium. ®

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