Thousands of Routers and Cameras Vulnerable To New 0-Day Attacks By Hostile Botnet

An anonymous reader quotes a report from Ars Technica: Miscreants are actively exploiting two new zero-day vulnerabilities to wrangle routers and video recorders into a hostile botnet used in distributed denial-of-service attacks, researchers from networking firm Akamai said Thursday. Both of the vulnerabilities, which were previously unknown to their manufacturers and to the security research community at large, allow for the remote execution of malicious code when the affected devices use default administrative credentials, according to an Akamai post. Unknown attackers have been exploiting the zero-days to compromise the devices so they can be infected with Mirai, a potent piece of open source software that makes routers, cameras, and other types of Internet of Things devices part of a botnet that's capable of waging DDoSes of previously unimaginable sizes.

Akamai researchers said one of the zero-days under attack resides in one or more models of network video recorders. The other zero-day resides in an 'outlet-based wireless LAN router built for hotels and residential applications.' The router is sold by a Japan-based manufacturer, which 'produces multiple switches and routers.' The router feature being exploited is 'a very common one,' and the researchers can't rule out the possibility it's being exploited in multiple router models sold by the manufacturer. Akamai said it has reported the vulnerabilities to both manufacturers, and that one of them has provided assurances security patches will be released next month. Akamai said it wasn't identifying the specific devices or the manufacturers until fixes are in place to prevent the zero-days from being more widely exploited.

The Akamai post provides a host of file hashes and IP and domain addresses being used in the attacks. Owners of network video cameras and routers can use this information to see if devices on their networks have been targeted. In an email, Akamai researcher Larry Cashdollar wrote: 'The devices don't typically allow code execution through the management interface. This is why getting RCE through command injection is needed. Because the attacker needs to authenticate first they have to know some login credentials that will work. If the devices are using easy guessable logins like admin:password or admin:password1 those could be at risk too if someone expands the list of credentials to try.' He said that both manufacturers have been notified, but only one of them has so far committed to releasing a patch, which is expected next month. The status of a fix from the second manufacturer is currently unknown. Cashdollar said an incomplete Internet scan showed there are at least 7,000 vulnerable devices. The actual number of affected devices may be higher.

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