CVE-2023-27896
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 · uneditedIn SAP BusinessObjects Business Intelligence Platform - version 420, 430, an attacker can control a malicious BOE server, forcing the application server to connect to its own CMS, leading to a high impact on availability.
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 confidenceThis is an SSRF-like vulnerability in SAP BusinessObjects BI Platform (versions 420, 430) where an attacker controlling a malicious BOE server can force the legitimate application server to connect to its own Central Management Server (CMS), creating a self-referential connection that severely impacts availability through potential resource exhaustion or service disruption.
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= 420= 430CVSS 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.
-
Identify SAP BusinessObjects BI Platform versionCheck the installed version of SAP BusinessObjects BI Platform on the system. This can typically be found in the SAP BusinessObjects installation directory, in version.info or about files, or by querying the Central Management Server (CMS) for its version information.Affected if The installed version is exactly 420 or exactly 430.
-
Verify Central Management Server (CMS) configurationAccess the CMS system database or configuration files to identify registered BOE servers. Review the server intelligence architecture to understand which BOE servers are authorized to communicate with the CMS.Affected if Multiple BOE servers are registered with the CMS and the network allows unauthenticated or untrusted BOE servers to initiate connections.
-
Review CMS connection logs for self-referential connectionsExamine CMS audit logs, trace logs, or connection monitoring for entries showing the CMS connecting to itself (loopback or localhost connections). Look for duplicate session IDs or connection patterns where the server connects back to its own CMS.Affected if Logs show CMS creating connections to its own hostname/IP address (self-referential connections) which may indicate exploitation.
-
Check for unusual resource consumption patternsMonitor system resources (CPU, memory, network connections) on the CMS server. Look for abnormally high numbers of concurrent connections or connection attempts that could indicate resource exhaustion from repeated self-connections.Affected if The CMS shows unusually high connection counts or resource usage without corresponding legitimate workload.
A system is affected if it runs SAP BusinessObjects BI Platform version 420 or 430 and has network-accessible BOE servers that could be controlled by an attacker to trigger self-referential CMS connections.
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 dataApply available SAP security patches for this vulnerability and implement network segmentation to restrict unauthorized servers from triggering CMS connections; monitor for unusual self-connection patterns.
- Consultation4.0 h
- Implementation8.0 h
- Testing4.0 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 $5,120.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-27896 — 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-2023-27896 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
Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.
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
- No spam, self-promotion, credentials, or personal data