CVE-2021-27900
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 · uneditedThe Proofpoint Insider Threat Management Server (formerly ObserveIT Server) is missing an authorization check on several pages in the Web Console. This enables a view-only user to change any configuration setting and delete any registered agents. All versions before 7.11.1 are affected.
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 confidenceThe Proofpoint Insider Threat Management Server (formerly ObserveIT) has a broken access control vulnerability in its Web Console. The application fails to perform authorization checks on multiple pages, allowing authenticated users with view-only permissions to bypass restrictions and perform administrative actions including modifying any configuration setting and deleting any registered agents.
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>= 7.9.0, < 7.9.3>= 7.10.0, < 7.10.3>= 7.11.0, < 7.11.1CVSS 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
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/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 the installed version of Proofpoint Insider Threat Management ServerLocate the application version through the server's about page, help menu, or version file. In the Web Console, this is typically found under Help > About or a similar administrative information section. If using command-line tools or configuration files, retrieve the version metadata from the installation directory or running service.Affected if The installed version falls within these ranges: 7.9.0 through 7.9.2, 7.10.0 through 7.10.2, or 7.11.0
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Confirm the Web Console is enabled and accessibleVerify that the Proofpoint Insider Threat Management Web Console interface is deployed and accessible to users. This is the primary administrative interface for the product and is typically accessible over HTTPS on the configured port.Affected if The Web Console is accessible and the application is running with default or custom configurations that expose the console endpoints
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Check for view-only user accounts in the systemReview the user management section of the Web Console or examine the user database/configuration to identify accounts that have been assigned view-only or read-only roles. Look for users with permissions limited to viewing data without administrative privileges.Affected if There are one or more user accounts configured with view-only or restricted permissions roles in the system
A user is affected if the installed version is 7.9.0-7.9.2, 7.10.0-7.10.2, or 7.11.0, the Web Console is accessible, and view-only user accounts exist in the environment.
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 data7.9.37.10.37.11.1
Upgrade to version 7.11.1 or later which implements proper authorization checks on all affected console pages.
- Consultation2.0 h
- Implementation3.0 h
- Testing3.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,800.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2021-27900 — 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-2021-27900 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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A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- 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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