CVE-2015-0993
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedInductive Automation Ignition 7.7.2 does not terminate a session upon a logout action, which allows remote attackers to bypass intended access restrictions by leveraging an unattended workstation.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · high confidenceInductive Automation Ignition 7.7.2 fails to properly terminate user sessions when a logout action is performed. This session management flaw allows an attacker with physical or remote access to an unattended, authenticated workstation to continue using the existing session credentials, bypassing intended access restrictions.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data= 7.7.2CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Authentication
- None
- Confidentiality
- Partial
- Integrity
- Partial
- Availability
- None
AV:N/AC:L/Au:N/C:P/I:P/A:N
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Verify Ignition installation versionAccess the Ignition Gateway web interface and navigate to the status or about page to confirm the installed version number, or check the installation logs for the version string at startup.Affected if The installed version is exactly 7.7.2
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Identify active user sessionsUse the Ignition Gateway diagnostic tools or session management interface to view currently authenticated user sessions and their session identifiers.Affected if Active sessions exist that were created prior to logout actions
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Test session invalidation after logoutLog in to the Ignition Gateway with a test account, perform a logout action, then attempt to access a protected resource using the previous session cookie or identifier.Affected if The session remains valid and authenticated after logout is performed, allowing continued access without re-authentication
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Review session configuration settingsExamine the Ignition Gateway configuration files or session management settings for session timeout values and session invalidation behavior.Affected if Session timeout is disabled or set to an excessively long duration, or no server-side session destruction occurs on logout
A user is affected if they are running exactly version 7.7.2 of Inductive Automation Ignition and can continue using session credentials after performing a logout action.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor dataImplement proper session invalidation on the server-side during logout, including clearing session tokens, destroying session data, and ensuring the session cannot be resumed. Consider adding automatic session timeout as a defense-in-depth measure.
- Consultation4.0 h
- Implementation8.0 h
- Testing4.0 h
- Review / QA2.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2015-0993 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2015-0993 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
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