# CVE-2023-21405: Denial-of-Service vulnerability in Axis Network Door Controller's and Axis Network Intercom's OSDP communication

> Attackers can crash the OSDP parser, causing temporary unavailability of door control functions on Axis network devices.

- **Severity:** Medium 6.5 (`CVSS:3.1/AV:A/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:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 25 Jul 2023
- **Updated:** 8 Nov 2024
- **Also known as:** GHSA-m5vf-rp25-854p

## What is CVE-2023-21405?

CVE-2023-21405 is a medium-severity denial of service vulnerability in AXIS A1001 Network Door Controller, published on 25 Jul 2023. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Knud from Fraktal.fi has found a flaw in some Axis Network Door Controllers and Axis Network
Intercoms when communicating over OSDP, highlighting that the OSDP message parser crashes
the pacsiod process, causing a temporary unavailability of the door-controlling functionalities
meaning that doors cannot be opened or closed. No sensitive or customer data can be extracted
as the Axis device is not further compromised. Please refer to the Axis security advisory for more information, mitigation and affected products and software versions.

Weakness: CWE-754 (Improper Check for Unusual or Exceptional Conditions), CWE-1286 (Improper Validation of Syntactic Correctness of Input)

## Which versions are affected by CVE-2023-21405?

It affects 5 products.


Products: Axis A1001 Firmware, Axis A1210 \(-B\) Firmware, Axis A1601 Firmware, Axis A1610 \(-B\) Firmware, Axis Axis Os.

## How do I fix CVE-2023-21405?

No fix has been published for CVE-2023-21405 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-21405 being exploited?

There is no known exploitation of CVE-2023-21405 in the wild and no public exploit code.

## Other vulnerabilities in AXIS A1001 Network Door Controller

- [CVE-2018-10660](https://insights.sbomify.com/CVE-2018-10660/): Command injection in n/a (critical 9.8)
- [CVE-2018-10661](https://insights.sbomify.com/CVE-2018-10661/): Auth bypass in n/a (critical 9.8)
- [CVE-2018-10662](https://insights.sbomify.com/CVE-2018-10662/): Information disclosure in n/a (critical 9.8)
- [CVE-2018-10658](https://insights.sbomify.com/CVE-2018-10658/): Memory corruption in n/a (high 7.5)
- [CVE-2018-10659](https://insights.sbomify.com/CVE-2018-10659/): Memory corruption in n/a (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-21405 and fix it if it is affected.

What it is: CVE-2023-21405 is a medium-severity denial of service vulnerability in AXIS A1001 Network Door Controller, published on 25 Jul 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-2023-21405 in the wild and no public exploit code.

Affected product: AXIS A1001 Network Door Controller. 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-2023-21405/ (Markdown: https://insights.sbomify.com/CVE-2023-21405/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-21405
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-21405
- OSV: https://osv.dev/vulnerability/CVE-2023-21405

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-21405/
Summaries are generated and may contain mistakes; the official description above is the record.