# CVE-2017-2855: Memory corruption in Foscam C1 Indoor HD Camera

> An attacker can compromise the device via buffer overflow in the DDNS client if DDNS is enabled and HTTP traffic is intercepted.

- **Severity:** High 8.1 (`CVSS:3.0/AV:N/AC:H/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:** 19 Sep 2018
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-9pw4-7m4h-75rq

## What is CVE-2017-2855?

CVE-2017-2855 is a high-severity memory corruption vulnerability in Foscam C1 Indoor HD Camera, published on 19 Sep 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

An exploitable buffer overflow vulnerability exists in the DDNS client used by the Foscam C1 Indoor HD Camera running application firmware 2.52.2.43. On devices with DDNS enabled, an attacker who is able to intercept HTTP connections will be able to fully compromise the device by creating a rogue HTTP server.

Weakness: CWE-120 (Buffer Copy without Checking Size of Input)

## Which versions are affected by CVE-2017-2855?

It affects 1 product.


Products: Foscam C1 Firmware.

## How do I fix CVE-2017-2855?

No fix has been published for CVE-2017-2855 yet. Limit exposure of the affected software until one is available.

## Is CVE-2017-2855 being exploited?

There is no known exploitation of CVE-2017-2855 in the wild and no public exploit code.

## Other vulnerabilities in Foscam C1 Indoor HD Camera

- [CVE-2017-2872](https://insights.sbomify.com/CVE-2017-2872/): Auth bypass in Foscam Indoor IP Camera C1 Series (critical 9.9)
- [CVE-2017-2877](https://insights.sbomify.com/CVE-2017-2877/): Missing authorization in Foscam C1 Indoor HD Camera (critical 9.8)
- [CVE-2017-2871](https://insights.sbomify.com/CVE-2017-2871/): Auth bypass in Foscam (critical 9.6)
- [CVE-2017-2873](https://insights.sbomify.com/CVE-2017-2873/): Command injection in Foscam C1 Indoor HD Camera (high 8.8)
- [CVE-2017-2875](https://insights.sbomify.com/CVE-2017-2875/): Memory corruption in Foscam C1 Indoor HD Camera (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2017-2855 and fix it if it is affected.

What it is: CVE-2017-2855 is a high-severity memory corruption vulnerability in Foscam C1 Indoor HD Camera, published on 19 Sep 2018. 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-2017-2855 in the wild and no public exploit code.

Affected product: Foscam C1 Indoor HD Camera. 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-2017-2855/ (Markdown: https://insights.sbomify.com/CVE-2017-2855/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2017-2855
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2017-2855
- OSV: https://osv.dev/vulnerability/CVE-2017-2855

---
From sbomify Insights: https://insights.sbomify.com/CVE-2017-2855/
Summaries are generated and may contain mistakes; the official description above is the record.