In response to 0.0.0.0 day, Firefox Nightly version 131 had introduced a new security measure: blocking access to 0.0.0.0/::/::ffff:0.0.0.0 addresses. This change is currently live for Nightly users and will be gradually rolled out to all release users in the near future. Before we implement this ch...
  • Zachariah@lemmy.world
    1·
    7 hours ago

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    Oligo Researchers have found that public websites (like domains ending in .com) are able to communicate with services running on the local network (localhost) and potentially execute arbitrary code on the visitor’s host by using the address 0.0.0.0 instead of localhost/127.0.0.1.

    Remediation In Progress: Browsers Will Soon Block 0.0.0.0

    Following responsible disclosure, HTTP requests to 0.0.0.0 are now being added to security standards using a Request for Comment (RFC), and some browsers will soon block access to 0.0.0.0 completely. 0.0.0.0 will not be allowed as a target IP anymore in the Fetch specification, which defines how browsers should behave when doing HTTP requests.

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