# CVE-2017-2871: Auth bypass in Foscam

> An attacker on the same network or with admin access can compromise the camera by exploiting insufficient checks in the firmware recovery procedure.

- **Severity:** Critical 9.6 (`CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/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:** 17 Apr 2018
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-rh3j-rp9c-67cx

## What is CVE-2017-2871?

CVE-2017-2871 is a critical authentication bypass vulnerability in Talos Foscam, published on 17 Apr 2018. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Insufficient security checks exist in the recovery procedure used by the Foscam C1 Indoor HD Camera running application firmware 2.52.2.43. An attacker who is in the same subnetwork of the camera or has remote administrator access can fully compromise the device by performing a firmware recovery using a custom image.

Weakness: CWE-287 (Improper Authentication)

## Which versions are affected by CVE-2017-2871?

It affects 1 product.


Products: Foscam C1 Firmware.

## How do I fix CVE-2017-2871?

No fix has been published for CVE-2017-2871 yet. Limit exposure of the affected software until one is available.

## Is CVE-2017-2871 being exploited?

There is no known exploitation of CVE-2017-2871 in the wild and no public exploit code.

## Other vulnerabilities in Talos Foscam

- [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-2017-2873](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)
- [CVE-2017-2876](https://insights.sbomify.com/CVE-2017-2876/): Memory corruption in Foscam C1 Indoor HD Camera (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2017-2871 and fix it if it is affected.

What it is: CVE-2017-2871 is a critical authentication bypass vulnerability in Talos Foscam, published on 17 Apr 2018. 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-2017-2871 in the wild and no public exploit code.

Affected product: Talos Foscam. 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-2017-2871/ (Markdown: https://insights.sbomify.com/CVE-2017-2871/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2017-2871
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2017-2871
- OSV: https://osv.dev/vulnerability/CVE-2017-2871

---
From sbomify Insights: https://insights.sbomify.com/CVE-2017-2871/
Summaries are generated and may contain mistakes; the official description above is the record.