CVE-2020-8011
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 · uneditedCA Unified Infrastructure Management (Nimsoft/UIM) 20.1, 20.3.x, and 9.20 and below contains a null pointer dereference vulnerability in the robot (controller) component. A remote attacker can crash the Controller service.
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 null pointer dereference vulnerability exists in the robot (controller) component of CA Unified Infrastructure Management (Nimsoft/UIM) versions 20.1, 20.3.x, and 9.20 and below. A remote, unauthenticated attacker can crash the Controller service by triggering the dereference of a null pointer, causing a denial of service condition.
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<= 9.20>= 20.3.0, < 20.4.0= 20.1CVSS 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
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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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Confirm UIM/Nimsoft robot installationLook for the Nimsoft installation directory (typically at /opt/nimsoft or C:\Program Files\Nimsoft) and identify the robot/controller component. On Linux/Unix check for /opt/nimsoft/robot, on Windows check for the robot service in Services.msc.Affected if The robot (controller) component is not installed or not present.
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Identify robot controller versionLocate the controller executable or a version file. On Linux check 'robot_version' in /opt/nimsoft/robot or the contents of the controller binary's version info. On Windows, right-click controller.exe and select Properties > Details to view the File Version.Affected if The installed version cannot be determined or is not a supported UIM version.
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Compare installed version to affected rangesCheck if the identified version matches any of these vulnerable ranges: versions 9.20 or below, version 20.1 exactly, or versions 20.3.0 through 20.3.x (any 20.3.x release before 20.4.0). Versions 20.4.0 and later are NOT affected.Affected if The installed version falls within 9.20 and below, equals 20.1, or is 20.3.0 through 20.3.x.
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Verify controller service is network accessibleCheck if the robot controller is listening on its default port (typically 48000 for the robot controller, or 48001 for the robot hub). Run 'netstat -an | grep 48000' on Linux or 'netstat -ano | findstr 48000' on Windows to see if the service is bound to a network interface.Affected if The controller service is bound to a reachable network address (0.0.0.0 or any non-localhost IP) and is accessible from the network.
If the robot/controller component is installed and running a version within 9.20 and below, exactly 20.1, or any 20.3.x version below 20.4.0, AND the controller is network-accessible, the environment is vulnerable to remote denial of service.
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 data20.4.0
Apply the vendor patch or upgrade to a patched version of UIM. Additionally, restrict network access to the controller component using firewalls or access control lists to limit exposure to unauthenticated remote attackers.
- Consultation2.0 h
- Implementation4.0 h
- Testing2.0 h
- Review / QA1.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2020-8011 — 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-2020-8011 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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