# CVE-2023-4383: MicroWorld eScan Anti-Virus runasroot incorrect execution-assigned permissions

> Local attackers can exploit incorrect permissions in the runasroot component to escalate privileges on Linux systems.

- **Severity:** High 7.8 (`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 16 Aug 2023
- **Updated:** 2 Aug 2024
- **Also known as:** GHSA-9v86-j5rf-5xpx

## What is CVE-2023-4383?

CVE-2023-4383 is a high-severity vulnerability in MicroWorld eScan Anti-Virus, published on 16 Aug 2023. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

A vulnerability, which was classified as critical, was found in MicroWorld eScan Anti-Virus 7.0.32 on Linux. This affects an unknown part of the file runasroot. The manipulation leads to incorrect execution-assigned permissions. The attack needs to be approached locally. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-237315. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

Weakness: CWE-732 (Incorrect Permission Assignment for Critical Resource), CWE-279 (Incorrect Execution-Assigned Permissions)

## Which versions are affected by CVE-2023-4383?

It affects 1 product.


Products: Escanav Escan Anti-Virus.

## How do I fix CVE-2023-4383?

No fix has been published for CVE-2023-4383 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-4383 being exploited?

There is no known exploitation of CVE-2023-4383 in the wild and no public exploit code.

## Other vulnerabilities in MicroWorld eScan Anti-Virus

- [CVE-2018-18388](https://insights.sbomify.com/CVE-2018-18388/): Command injection in n/a (critical 9.8)
- [CVE-2025-0798](https://insights.sbomify.com/CVE-2025-0798/): MicroWorld eScan Antivirus Quarantine rtscanner os command injection (critical 9.2)
- [CVE-2021-26624](https://insights.sbomify.com/CVE-2021-26624/): eScan Anti-Virus Local privilege escalation Vulnerability (high 7.8)
- [CVE-2023-2875](https://insights.sbomify.com/CVE-2023-2875/): eScan Antivirus IoControlCode PROCOBSRVESX.SYS 0x22E008u null pointer dereference (medium 5.5)
- [CVE-2025-1366](https://insights.sbomify.com/CVE-2025-1366/): MicroWord eScan Antivirus VirusPopUp strcpy stack-based overflow (medium 4.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-4383 and fix it if it is affected.

What it is: CVE-2023-4383 is a high-severity vulnerability in MicroWorld eScan Anti-Virus, published on 16 Aug 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2023-4383 in the wild and no public exploit code.

Affected product: MicroWorld eScan Anti-Virus. 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-2023-4383/ (Markdown: https://insights.sbomify.com/CVE-2023-4383/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-4383
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-4383
- OSV: https://osv.dev/vulnerability/CVE-2023-4383

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-4383/
Summaries are generated and may contain mistakes; the official description above is the record.