CVE-2018-2422
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 · uneditedSAP Internet Graphics Server (IGS) Portwatcher, 7.20, 7.20EXT, 7.45, 7.49, 7.53, allows an attacker to prevent legitimate users from accessing a service, either by crashing or flooding the service.
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 confidenceSAP Internet Graphics Server (IGS) Portwatcher contains a denial-of-service vulnerability in versions 7.20, 7.20EXT, 7.45, 7.49, and 7.53. An attacker can exploit this to crash the service or flood it, preventing legitimate users from accessing the IGS functionality.
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= 7.20= 7.20ext= 7.45= 7.49= 7.53CVSS 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:3.0/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 if SAP Internet Graphics Server is installedReview installed SAP components or check for IGS-related processes and services on the SAP system. Look for IGS binaries or check SAP transaction code DB02 for IGS-related tables, or use SAP LM STRUCTURED to list installed software components.Affected if SAP IGS is present on the system
-
Determine the installed IGS versionUse SAP transaction code SM37 to view IGS process details, or check the SAP system version information via SAP transaction code SM51. Alternatively, inspect the IGS binary or library files for version metadata.Affected if The installed version matches 7.20, 7.20EXT, 7.45, 7.49, or 7.53 exactly
-
Check if Portwatcher component is enabledReview IGS configuration files or use SAP transaction code SFP to check IGS service configurations. Portwatcher is typically configured in the IGS parameter file or via SAP profile parameters related to IGS.Affected if Portwatcher is active or configured to start automatically on the IGS server
-
Verify Portwatcher network exposureCheck the SAP profile parameters or IGS configuration for Portwatcher listener port settings. Use netstat or similar tools to identify which network interfaces and ports the Portwatcher is bound to.Affected if Portwatcher is listening on an exposed network interface accessible from untrusted networks
You are affected if SAP Internet Graphics Server is installed with version 7.20, 7.20EXT, 7.45, 7.49, or 7.53 AND the Portwatcher component is enabled and accessible on the network.
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 the relevant SAP security patch for CVE-2018-2422 to the affected IGS installations. If patching is immediately unfeasible, implement network-level filtering or rate limiting to mitigate flood-based attacks and restrict Portwatcher access to trusted sources.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 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 $5,600.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2018-2422 — 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-2018-2422 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