CVE-2021-34785
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 · uneditedMultiple vulnerabilities in Cisco BroadWorks CommPilot Application Software could allow an authenticated, remote attacker to delete arbitrary user accounts or gain elevated privileges on an affected system.
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 · moderate confidenceMultiple authorization flaws in Cisco BroadWorks CommPilot allow authenticated remote attackers to bypass proper access controls, enabling deletion of arbitrary user accounts and escalation to elevated privileges. The vulnerabilities likely stem from insufficient validation of user permissions before performing administrative actions.
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>= 22.0, < 22.0.2021.09>= 23.0, < 23.0.2021.09>= 24.0, < 24.0.2021.09CVSS 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 if Cisco BroadWorks CommPilot is deployedReview your application inventory or check for the CommPilot web interface URL (commonly at /CommPilot or similar paths). Look for Cisco BroadWorks-related services in your network scan results.Affected if The product is present in your environment.
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Determine the installed CommPilot versionLog into the BroadWorks CommPilot administrative interface and navigate to the About or System Information page. Alternatively, check the version displayed in the software or in any documentation/CONFIG files for the deployment.Affected if The version falls within the ranges: 22.0 to 22.0.2021.09, 23.0 to 23.0.2021.09, or 24.0 to 24.0.2021.09.
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Verify the administrative interface is network-accessibleCheck firewall rules, load balancer configurations, or network ACLs to determine if the CommPilot administrative portal is reachable from networks outside your trusted administrative zone.Affected if The admin interface is exposed to untrusted networks or the internet.
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Review access logs for unusual administrative actionsExamine CommPilot or application server logs for operations such as user account deletions, privilege modifications, or actions performed by users who should not have administrative permissions. Look for timestamps, source IPs, and user accounts involved.Affected if Logs show user deletions, privilege escalation, or administrative actions performed by non-admin accounts.
You are affected if Cisco BroadWorks CommPilot is running a version between 22.0 and 22.0.2021.09, 23.0 and 23.0.2021.09, or 24.0 and 24.0.2021.09 AND the administrative interface is accessible to authenticated users who may exploit the authorization bypass.
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.
dbcve · scoped22.0.2021.0923.0.2021.0924.0.2021.09
Apply the relevant Cisco security patch for BroadWorks CommPilot; restrict network access to trusted users and monitor for unauthorized privilege escalation or account manipulation.
22.0.2021.09 (for 22.x line), 23.0.2021.09 (for 23.x line), or 24.0.2021.09 (for 24.x line)
- 1. Identify the currently installed Cisco BroadWorks CommPilot Application Software version
- 2. For versions >=22.0 and <22.0.2021.09: Upgrade to version 22.0.2021.09 or later
- 3. For versions >=23.0 and <23.0.2021.09: Upgrade to version 23.0.2021.09 or later
- 4. For versions >=24.0 and <24.0.2021.09: Upgrade to version 24.0.2021.09 or later
- 5. After upgrade, verify the system is functioning correctly and the vulnerabilities are resolved
- 6. Review Cisco release notes for any additional post-upgrade configuration requirements
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation4.0 h
- Implementation6.0 h
- Testing4.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2021-34785 — 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-2021-34785 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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