Business Process AutomationApplication · Cisco
CVE-2021-1576
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 the web-based management interface of Cisco Business Process Automation (BPA) could allow an authenticated, remote attacker to elevate privileges to Administrator. These vulnerabilities are due to improper authorization enforcement for specific features and for access to log files that contain confidential information. An attacker could exploit these vulnerabilities either by submitting crafted HTTP messages to an affected system and performing unauthorized actions with the privileges of an administrator, or by retrieving sensitive data from the logs and using it to impersonate a legitimate privileged user. A successful exploit could allow the attacker to elevate privileges to Administrator.
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 confidenceMultiple authorization flaws in Cisco BPA's web management interface allow authenticated attackers to either submit crafted HTTP requests that bypass authorization checks to perform admin actions, or read sensitive data from log files to impersonate legitimate privileged users, achieving full 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
Business Process AutomationApplication
< 3.1CVSS 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
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:L/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 Cisco BPA versionLocate the installed Cisco Business Process Automation version through the product's web interface, CLI, or system inventory documentationAffected if Version is below 3.1 (any version prior to 3.1)
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Confirm web management interface is enabledVerify the BPA web management interface is accessible by attempting to reach it via browser or HTTP client, or check the product configuration for web interface statusAffected if Web management interface is enabled and reachable
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Check network access controlsReview network configuration to determine if the BPA web management interface is exposed to untrusted networks or IP rangesAffected if Interface is accessible from networks outside trusted administrative ranges
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Audit administrative user accountsReview the list of administrative users in the BPA system to identify any unauthorized accounts or privilege escalationsAffected if Unexpected administrative users exist or privilege changes are observed
User is affected if Cisco BPA version is below 3.1 AND the web management interface is enabled and accessible
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 · scoped3.1
Apply Cisco's vendor patches for BPA; until then, restrict web management interface access to trusted IP ranges and monitor for unauthorized administrative actions.
Cisco Business Process Automation version 3.1
- 1. Identify the current version of Cisco Business Process Automation installed on the system
- 2. Download Cisco Business Process Automation version 3.1 or later from the Cisco website
- 3. Review the upgrade documentation and release notes for version 3.1
- 4. Perform a backup of the current BPA configuration and data
- 5. Upgrade the Cisco BPA installation to version 3.1 or later following the official upgrade procedure
- 6. Verify the upgrade was successful and the web-based management interface is accessible
- 7. Confirm the version number reflects the upgrade to 3.1 or later
Generated from the published advisory — verify against the referenced sources before acting.
Fix this in Business Process Automation
Scoped from the published advisory
- Consultation4.0 h
- Implementation10.0 h
- Testing6.0 h
- Review / QA3.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $6,464.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2021-1576 — 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-2021-1576 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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