CVE-2020-10657
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) before 7.9.1 contains a vulnerability in the ITM web console's ImportAlertRules feature. The vulnerability allows a remote attacker (with admin or config-admin privileges in the console) to execute arbitrary code with local administrator privileges. The vulnerability is caused by improper deserialization.
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 before version 7.9.1 contains a deserialization vulnerability in the ITM web console's ImportAlertRules feature. An attacker with admin or config-admin privileges can exploit improper deserialization to achieve remote code execution with local administrator privileges.
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< 7.9.1CVSS 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
- High
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/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 Proofpoint ITM Server installationCheck for the presence of Proofpoint Insider Threat Management Server by looking for the ITM service or checking installed programs on the system. The service typically runs as a Windows service named 'Proofpoint ITM' or similar.Affected if The ITM Server is installed and running on the system
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Verify the installed versionCheck the installed version of Proofpoint ITM Server against the vulnerable range. This can typically be done via the ITM console's About section, or by checking the application's version information in Windows Programs and Features, or via command-line tools like 'wmic product get name,version' if the installer registered properly.Affected if The installed version is any version before 7.9.1 (e.g., 7.9.0, 7.8.x, 7.7.x, etc.)
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Confirm admin or config-admin access existsReview the ITM Server user management or authentication logs to determine if any accounts with admin or config-admin privileges exist on the system. Check the number and identity of users granted these elevated roles.Affected if Any user account with admin or config-admin privileges exists in the ITM system (these privileges are required for exploitation)
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Check for ImportAlertRules feature accessibilityLog into the ITM web console with admin or config-admin credentials and navigate to the alert configuration or rules management section to confirm the ImportAlertRules feature is present and accessible.Affected if The ImportAlertRules feature is accessible to admin or config-admin users in the web console
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Review logs for suspicious import activityExamine ITM Server audit logs, Windows Event Logs, and application logs for any unusual ImportAlertRules operations, especially those containing unexpected data patterns, serialized objects, or commands that could indicate exploitation attempts.Affected if Any anomalous import activity is found in the logs, particularly from admin/config-admin sessions
A system is affected if Proofpoint ITM Server is installed with a version earlier than 7.9.1 and the ImportAlertRules feature is accessible to users with admin or config-admin privileges.
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 data7.9.1
Upgrade the Proofpoint ITM Server to version 7.9.1 or later to remediate the deserialization vulnerability. If immediate upgrade is not possible, restrict admin/config-admin access to trusted personnel and monitor for suspicious import activity.
- Consultation4.0 h
- Implementation4.0 h
- Testing8.0 h
- Review / QA4.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2020-10657 — 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-2020-10657 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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