Security Leftovers
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Security Researchers Find Several Bugs in Nest Security Cameras
Researchers Lilith Wyatt and Claudio Bozzato of Cisco Talos discovered the vulnerabilities and disclosed them publicly on August 19. The two found eight vulnerabilities that are based in the Nest implementation of the Weave protocol. The Weave protocol is designed specifically for communications among Internet of Things or IoT devices.
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Better SSH Authentication with Keybase
With an SSH CA model, you start by generating a single SSH key called the CA key. The public key is placed on each server and the server is configured to trust any key signed by the CA key. This CA key is then used to sign user keys with an expiration window. This means that signed user keys can only be used for a finite, preferably short, period of time before a new signature is needed. This transforms the key management problem into a user management problem: How do we ensure that only certain people are able to provision new signed SSH keys?
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Texas ransomware attacks deliver wake-up call to cities [iophk: Windows TCO]
The Texas Department of Information Resources has confirmed that 22 Texas entities, mostly local governments, have been hit by the ransomware attacks that took place late last week. The department pointed to a “single threat actor” as being responsible for the attacks, which did not impact any statewide systems.
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Texas Ransomware Attack
On Security Now, Steve Gibson talks about a huge ransomware attack. 23 cities in Texas were hit with a well-coordinated ransomware attack last Friday, August 16th.
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CVE-2019-10071: Timing Attack in HMAC Verification in Apache Tapestry
Apache Tapestry uses HMACs to verify the integrity of objects stored on the client side. This was added to address the Java deserialization vulnerability disclosed in CVE-2014-1972. In the fix for the previous vulnerability, the HMACs were compared by string comparison, which is known to be vulnerable to timing attacks.
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Dilution and Misuse of the "Linux" Brand
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