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Proprietary and Security Leftovers

Submitted by Roy Schestowitz on Thursday 23rd of December 2021 11:47:02 PM Filed under
Server
Security
  • Security updates for Thursday

    Security updates have been issued by Debian (openjdk-11), Fedora (keepalived and tang), openSUSE (openssh, p11-kit, runc, and thunderbird), Oracle (postgresql:12, postgresql:13, and virt:ol and virt-devel:ol), Red Hat (rh-maven36-log4j12), and SUSE (ansible, chrony, logstash, elasticsearch, kafka, zookeeper, openstack-monasca-agent, openstack-monasca-persister-java, openstack-monasca-thresh, openssh, p11-kit, python-Babel, and thunderbird).

  • Microsoft Teams might have a few serious security issues [Ed: Microsoft is incapable of making software that actually works, as explained by a former insider]

    Security researchers have discovered four separate vulnerabilities in Microsoft Teams that could be exploited by an attacker to spoof link previews, leak IP addresses and even access the software giant's internal services.

    These discoveries were made by researchers at Positive Security who “stumbled upon” them while looking for a way to bypass the the Same-Origin Policy (SOP) in Teams and Electron according to a new blog post. For those unfamiliar, SOP is a security mechanism found in browsers that helps stop websites from attacking one another.

  • Microsoft informs customers of 'NotLegit' Azure bug

    Microsoft's Security Response Center has released a blog post explaining its response to the "NotLegit" bug in Azure that was discovered by cloud security company Wiz.

    Wiz said all PHP, Node, Ruby, and Python applications that were deployed using "Local Git" on a clean default application in Azure App Service since September 2017 are affected. They added that all PHP, Node, Ruby, and Python applications that were deployed in Azure App Service from September 2017 onward using any Git source -- after a file was created or modified in the application container -- were also affected.

  • 4-Year-Old Bug in Azure App Service Exposed Hundreds of Source Code Repositories

    A security flaw has been unearthed in Microsoft's Azure App Service that resulted in the exposure of source code of customer applications written in Java, Node, PHP, Python, and Ruby for at least four years since September 2017.

    The vulnerability, codenamed "NotLegit," was reported to the tech giant by Wiz researchers on October 7, 2021, following which mitigations have been undertaken to fix the information disclosure bug in November. Microsoft said a "limited subset of customers" are at risk, adding "Customers who deployed code to App Service Linux via Local Git after files were already created in the application were the only impacted customers."

  • New Linux Patches For AMD i2c Bus Sharing With The PSP [Ed: This is, in effect, a back door in AMD processors, akin to M.E. in all Intel processors]

    The newest Linux hardware support patches for the kernel revolve around i2c bus sharing support for newer SoCs where the i2c bus is being shared by AMD's Platform Security Processor (PSP). This i2c controller is based on common DesignWare IP but new kernel code is being crafted for handling that bus sharing between the kernel and the PSP co-processor.

  • Pete Zaitcev: Adventures in tech support

    OVH was pestering me about migrating my VPS from its previous range to the new (and more expensive) one. I finally agreed to that. Migrated the VM to the new host, it launches with no networking. Not entirely unexpected, but it gets better.

    The root cause is the DHCP server at OVH returning a lease with netmask /32. In that situation, it's not possible to add a default route, because the next hop is outside of the netmask.

    Seems like a simple enough problem, so I filed a ticket in OVH support, basically saying "your DHCP server supplies incorrect netmask, please fix it."

»

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