Security readout for executives and security teams
Plain-English summary
A Foscam C1 indoor camera with DDNS enabled can be taken over if an attacker can intercept its HTTP traffic and impersonate the service it contacts. This is serious for sites still using the named firmware, because successful exploitation means full device compromise, but the source bundle does not show active exploitation or a patch version.
Executive priority
Treat this as a high-priority legacy camera exposure issue. The business risk is device takeover, but urgency depends on whether affected Foscam C1 cameras remain deployed with DDNS enabled and reachable across interceptable networks.
Technical view
CVE-2017-2855 is a buffer overflow in the DDNS client of Foscam C1 Indoor HD Camera application firmware 2.52.2.43. The reported attack path requires DDNS to be enabled and the attacker to intercept HTTP connections. CVSS 3.0 is 8.1, with high confidentiality, integrity, and availability impact.
Likely exposure
Exposure is likely limited to Foscam C1 Indoor HD Cameras running the listed system, application, and plug-in firmware, especially where DDNS is enabled and camera HTTP traffic can be intercepted.
Exploitation context
The CVE description says compromise is possible through a rogue HTTP server after intercepting HTTP connections. KEV is false, and the supplied sources do not state active exploitation in the wild.
Researcher notes
The source bundle identifies the vulnerable component and preconditions, but does not provide CWE mapping, exploit-in-the-wild evidence, or a patched version. Validation should focus on exact firmware matching, DDNS configuration, and network interception risk, without assuming broader Foscam product impact.
Mitigation direction
- Identify Foscam C1 devices and record firmware versions.
- Disable DDNS where it is not required.
- Check Foscam or Talos guidance for fixed firmware or vendor remediation.
- Restrict camera management traffic to trusted networks.
- Plan replacement for unsupported or unpatchable devices.
Validation and detection
- Inventory cameras for the exact affected Foscam C1 firmware bundle.
- Confirm whether DDNS is enabled on each device.
- Review network paths where camera HTTP traffic could be intercepted.
- Check whether vendor firmware updates have been applied.
- Document compensating controls for devices that cannot be updated.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CVE-2017-2855 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 8.1 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H2.25.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
8.1HighVector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://talosintelligence.com/vulnerability_reports/TALOS-2017-0358CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.