CVE-2017-12815
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 · uneditedAnalysis of the Bomgar Remote Support Portal JavaStart.jar Applet 52790 and earlier revealed that it is vulnerable to a path traversal vulnerability. The archive can be downloaded from a given Bomgar Remote Support Portal deployment at https://domain/api/content/JavaStart.jar and is callable from an arbitrary website using <object> and/or <appletHTML> tags. Successful exploitation results in file creation/modification/deletion in the operating system and with privileges of the user that ran the Java applet.
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 confidenceA path traversal vulnerability exists in Bomgar Remote Support Portal's JavaStart.jar applet (versions 52790 and earlier). The applet can be downloaded from /api/content/JavaStart.jar and invoked from any website via <object> or <applet> tags, allowing attackers to create, modify, or delete files on the victim's OS with the privileges of the user running the Java applet.
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 dataall versionsCVSS 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
- Privileges
- None
- User interaction
- None
- Scope
- Changed
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
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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Identify Bomgar Remote Support Portal installationCheck if Bomgar Remote Support Portal is installed on the system by looking for its installation directory (commonly in C:\Program Files\Bomgar or /opt/bomgar), or check for the Bomgar web service running on typical ports (80, 443, 8443)Affected if Bomgar Remote Support Portal is present and accessible on the network
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Determine the installed Bomgar versionAccess the Bomgar web interface and look for the version information, typically found in the login page footer, /api/version endpoint, or in the installation logsAffected if The version is 52790 or earlier (all versions before the fix)
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Verify JavaStart.jar is accessibleAttempt to access the /api/content/JavaStart.jar endpoint on the Bomgar server using a web browser or curl command (e.g., curl https://<server>/api/content/JavaStart.jar)Affected if The JavaStart.jar file can be downloaded (HTTP 200 response)
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Check Java browser plugin statusExamine browsers on systems that may access the Bomgar portal: in Internet Explorer, check Manage Add-ons for Java Plug-ins; in Firefox, check about:addons for Java; in Chrome, check chrome://extensionsAffected if Java browser plugins are enabled and the browser can execute Java applets
If Bomgar Remote Support Portal version 52790 or earlier is installed and the /api/content/JavaStart.jar endpoint is accessible from untrusted networks, the environment is affected by this path traversal vulnerability.
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 dataUpgrade Bomgar Remote Support Portal to a version newer than 52790. As an interim control, disable Java browser plugins or block access to the /api/content/ endpoint at the network perimeter.
- Consultation2.0 h
- Implementation4.0 h
- Testing3.0 h
- Review / QA1.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2017-12815 — 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-2017-12815 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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- Version or environment caveats, and links to real fixes
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