Juniper security flaw sparks review by Cisco Systems

Cisco Systems is reviewing its software for a security flaw following a discovery by Juniper Networks of a flaw that hackers could use to penetrate Juniper’s firewall.

Cisco said on its security blog Tuesday that it has a “no backdoor” policy that precludes access through backdoors, and has found no unauthorized code in its products.

But after fielding questions from customers, the company is reviewing its products for “malicious modifications” similar to the one Juniper discovered, said Anthony Grieco, senior director of Cisco’s Security and Trust Organization.

“Cisco launched the review because the trust of our customers is paramount,” Grieco wrote. “We have not been contacted by law enforcement about Juniper’s bulletin, and our review is not in response to any outside request. We are doing this because it’s the right thing to do.”

Juniper disclosed the vulnerability in a security post and strongly recommended that customers upgraded to a fixed release.

The company said it is unaware of any exploitation of the vulnerability. It only affects ScreenOS 6.3.0r17 through 6.3.0r20, Juniper said

Photo: Cisco (Paul Sakuma, Associated Press)


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