The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learningSending a purposefully crafted invalid date in the If-Modified-Since
or Last-Modified
header will cause the Hapi
server to err but keep the socket open (the socket will time out after 2 minutes by default). This allows an attacker to quickly exhaust the sockets on the server, making it unavailable (a Denial of Service
attack).
The vulnerability is caused by the combination of two bugs.
First, the underlying V8 engine throws an exception when processing the specially crafted date, instead of stating the date is invalid as it should. Second, the Hapi
server does not handle the exception well, leading to the socket remaining open.
Upgrading Hapi
will address the second issue and thus fix the vulnerability.