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CVE-2017-14955 is an unauthenticated information-disclosure vulnerability in Check_mk and Check_mk Enterprise editions through 1.2.8p25. Failed-login handling persists user and contact data using temporary-file rename operations without adequate concurrency control. Concurrent failed authentications can cause one persistence operation to fail after another request has renamed the shared temporary file. The resulting unhandled exception is rendered in a GUI crash report that includes stack-trace context and local variables, potentially exposing the in-memory user database and related sensitive information.
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No valid public exploits. Mallory filtered out 1 candidate as fakes, detection scripts, or README-only repos.
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2 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
An unauthenticated race-condition information-disclosure vulnerability in Check_mk authentication. Concurrent failed login requests can race two file-renaming operations, trigger a Python exception/crash report, and expose sensitive data including internal paths, usernames, hashed passwords, and directory-specific account attributes.
A race condition in Check_MK (and Check_MK Enterprise) user database update logic during failed logins that can trigger an unhandled exception and crash report, leaking sensitive local variables including user records and password hashes to an unauthenticated user.
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Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.