# CVE-2018-2392: XML external entity in SAP Internet Graphics Server

> An attacker can cause a denial of service in SAP Internet Graphics Server by exploiting an XML External Entity vulnerability.

- **Severity:** High 7.5 (`CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 14 Feb 2018
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-j629-mr84-x8mf

## What is CVE-2018-2392?

CVE-2018-2392 is a high-severity vulnerability in SAP Internet Graphics Server, published on 14 Feb 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Under certain conditions SAP Internet Graphics Server (IGS) 7.20, 7.20EXT, 7.45, 7.49, 7.53, fails to validate XML External Entity appropriately causing the SAP Internet Graphics Server (IGS) to become unavailable.

Weakness: CWE-611 (Improper Restriction of XML External Entity Reference)

## Which versions are affected by CVE-2018-2392?

It affects 1 product.


Products: Sap Internet Graphics Server.

## How do I fix CVE-2018-2392?

No fix has been published for CVE-2018-2392 yet. Limit exposure of the affected software until one is available.

## Is CVE-2018-2392 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2018-2392 exists.

Public exploit code:

- SAP IGS XXE attack CVE-2018-2392 and CVE-2018-2393 (github_poc): https://github.com/Vladimir-Ivanov-Git/sap_igs_xxe
- SAP Internet Graphics Server (IGS) XMLCHART XXE (metasploit)
- SAP Internet Graphics Server (IGS) - XML External Entity Injection (nuclei): http/cves/2018/CVE-2018-2392.yaml

## Other vulnerabilities in SAP Internet Graphics Server

- [CVE-2006-6346](https://insights.sbomify.com/CVE-2006-6346/): Information disclosure in n/a (critical 10.0)
- [CVE-2018-2437](https://insights.sbomify.com/CVE-2018-2437/): Command injection in SAP Internet Graphics Server (IGS) (critical 9.1)
- [CVE-2018-2395](https://insights.sbomify.com/CVE-2018-2395/): File upload in SAP Internet Graphics Server (high 8.8)
- [CVE-2018-2438](https://insights.sbomify.com/CVE-2018-2438/): Denial of service in SAP Internet Graphics Server (IGS) (high 7.5)
- [CVE-2018-2393](https://insights.sbomify.com/CVE-2018-2393/): XML external entity in SAP Internet Graphics Server (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-2392 and fix it if it is affected.

What it is: CVE-2018-2392 is a high-severity vulnerability in SAP Internet Graphics Server, published on 14 Feb 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2018-2392 exists.

Affected product: SAP Internet Graphics Server. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2018-2392/ (Markdown: https://insights.sbomify.com/CVE-2018-2392/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-2392
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-2392
- OSV: https://osv.dev/vulnerability/CVE-2018-2392

---
From sbomify Insights: https://insights.sbomify.com/CVE-2018-2392/
Summaries are generated and may contain mistakes; the official description above is the record.