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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Test your applicationsUpgrade b2
to version 3.2.1 or higher.
b2 is a Command Line Tool for Backblaze B2
Affected versions of this package are vulnerable to Information Exposure. The command-line tool saves API keys (and bucket name-to-id mapping) in a local database file ($XDG_CONFIG_HOME/b2/account_info
, ~/.b2_account_info
or a user-defined path) when b2 authorize-account
is first run.
This happens regardless of whether a valid key is provided or not. When first created, the file is world-readable and is later altered to be private to the user.
If the directory is readable by a local attacker and the user did not yet run b2 authorize-account
then during the brief period between file creation and permission modification, a local attacker can race to open the file and maintain a handle to it. This allows the local attacker to read the contents after the file after the sensitive information has been saved to it.