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Anti-malware

Devil’s Ivy: Flaw in Widely Used Third-party Code Impacts Millions

18th July 2017 

 

Summary
Given the increasingly vital role IoT plays in modern life, we strive to improve the state of IoT security and share the knowledge we gain through our research with IoT manufacturers and users.

Our latest discovery was found in an Axis Communications security camera — the M3004 model. Axis Communications is one of the largest manufacturers of security web cameras globally. In fact, while passing through LAX last week, we saw one of the vulnerable models in use at the airport.

After about a day of analysis, we discovered a stack buffer overflow vulnerability (CVE-2017-9765), which we’re calling Devil’s Ivy*. Devil’s Ivy results in remote code execution, and was found in an open source third-party code library, from gSOAP (more on that later). When exploited, it allows an attacker to remotely access a video feed or deny the owner access to the feed. Since these cameras are meant to secure something, like a bank lobby, this could lead to collection of sensitive information or prevent a crime from being observed or recorded.

Axis informed us that Devil’s Ivy is present in 249 distinct camera models, the exception being three of their older cameras. Once we verified Axis’s fix prevented our exploit from working, Axis quickly began releasing patched firmware and prompting partners and customers to upgrade.

 

Full Article.

 

 

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