CVE-2018-2389
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 · uneditedUnder certain conditions a malicious user can inject log files of SAP Internet Graphics Server (IGS), 7.20, 7.20EXT, 7.45, 7.49, 7.53, hiding important information in the log file.
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) contains a log injection vulnerability where, under certain conditions, a malicious user can inject content into log files, allowing them to hide important information or manipulate log entries. This compromises the integrity and reliability of audit logs.
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
- Low
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- High
- Availability
- None
CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:N
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.
-
Verify SAP IGS is installedCheck for the SAP Internet Graphics Server installation by looking for IGS-specific processes or binaries. On Windows, check services for 'SAPIGS' or similar. On Unix, look for igs-related processes.Affected if SAP IGS is not present on the system, the vulnerability does not apply.
-
Determine installed IGS versionIdentify the IGS version by querying the SAP system or checking version information for the IGS installation. Compare the installed version to the affected versions: 7.20, 7.20ext, 7.45, 7.49, or 7.53.Affected if The installed version matches one of the affected versions listed.
-
Confirm logging is enabledCheck if SAP IGS logging is configured and active. Locate the IGS configuration files that control logging behavior and verify that logging is turned on.Affected if Logging is disabled, the log injection cannot occur since there are no log files to manipulate.
-
Locate IGS log filesFind the log files generated by SAP IGS. These are typically stored in the IGS working directory or a designated log folder within the SAP system.Affected if Log files exist and are writable, they could be manipulated by an attacker exploiting this vulnerability.
A system is affected if SAP Internet Graphics Server is installed with version 7.20, 7.20ext, 7.45, 7.49, or 7.53 and logging is enabled, allowing log files to be written.
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 dataImplement strict input validation and sanitization for all data written to log files, ensuring user-supplied content cannot inject false or misleading log entries. Apply vendor-supplied patches for the affected IGS versions.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA4.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $6,176.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2018-2389 — 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-2018-2389 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