# CVE-2023-1437: CVE-2023-1437

> Attackers can exploit untrusted RPC pointers to execute commands and overwrite files on the remote file system.

- **Severity:** Critical 9.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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:** 2 Aug 2023
- **Updated:** 2 Aug 2024
- **Also known as:** GHSA-qv79-48vx-52fw

## What is CVE-2023-1437?

CVE-2023-1437 is a critical memory corruption vulnerability in Advantech WebAccess/SCADA, published on 2 Aug 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

All versions prior to 9.1.4 of Advantech WebAccess/SCADA are vulnerable to use of untrusted pointers. The RPC arguments the client sent could contain raw memory pointers for the server to use as-is. This could allow an attacker to gain access to the remote file system and the ability to execute commands and overwrite files.

Weakness: CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer), CWE-822 (Untrusted Pointer Dereference)

## Which versions are affected by CVE-2023-1437?

It affects 1 product.


Products: Advantech Webaccess\/Scada.

## How do I fix CVE-2023-1437?

No fix has been published for CVE-2023-1437 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-1437 being exploited?

There is no known exploitation of CVE-2023-1437 in the wild and no public exploit code.

## Other vulnerabilities in Advantech WebAccess/SCADA

- [CVE-2021-32943](https://insights.sbomify.com/CVE-2021-32943/): Memory corruption in WebAccess/SCADA (critical 9.8)
- [CVE-2019-6519](https://insights.sbomify.com/CVE-2019-6519/): Auth bypass in n/a (critical 9.8)
- [CVE-2019-6523](https://insights.sbomify.com/CVE-2019-6523/): SQL injection in n/a (critical 9.8)
- [CVE-2021-22669](https://insights.sbomify.com/CVE-2021-22669/): Privilege escalation in Advantech WebAccess/SCADA (high 8.8)
- [CVE-2020-13554](https://insights.sbomify.com/CVE-2020-13554/): Privilege escalation in Advantech (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-1437 and fix it if it is affected.

What it is: CVE-2023-1437 is a critical memory corruption vulnerability in Advantech WebAccess/SCADA, published on 2 Aug 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2023-1437 in the wild and no public exploit code.

Affected product: Advantech WebAccess/SCADA. 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-2023-1437/ (Markdown: https://insights.sbomify.com/CVE-2023-1437/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-1437
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-1437
- OSV: https://osv.dev/vulnerability/CVE-2023-1437

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-1437/
Summaries are generated and may contain mistakes; the official description above is the record.