Security readout for executives and security teams
Plain-English summary
CVE-2020-36905 affects FIBARO System Home Center 5.021 via an undocumented proxy API. An unauthenticated network attacker may cause the interface to load attacker-controlled client-side script, risking session hijacking or page manipulation. Public exploit listings exist, but the provided sources do not show known active exploitation.
Executive priority
Prioritize this for environments using FIBARO Home Center devices on exposed or shared networks. The business risk is compromise of smart-building management sessions or interface content. Because public exploit references exist and patch details are not provided here, reduce exposure immediately while confirming vendor remediation.
Technical view
The issue is described as remote file inclusion/CWE-829 through a proxy API 'url' GET parameter, allowing arbitrary client-side script inclusion. CVSS is 7.5, network reachable, low complexity, no privileges or user interaction. The bundle lists Home Center 3, Home Center 2, and Home Center Lite, but version detail is inconsistent and incomplete.
Likely exposure
Highest concern is internet- or untrusted-network-accessible FIBARO Home Center management interfaces, especially systems matching 5.021 or listed Home Center product lines. Exposure is less clear where devices are isolated from users and external networks. Asset owners should confirm exact model, firmware, and remote access configuration.
Exploitation context
Exploit references are listed on Exploit-DB, Packet Storm, and CXSecurity, indicating public technical details exist. The source bundle marks CISA KEV as false and provides no cited evidence of active exploitation. Treat as plausible to exploit where reachable, but do not assume confirmed in-the-wild activity.
Researcher notes
The provided data has gaps: affected version fields show '0' while the title and description identify System Home Center 5.021. No vendor advisory or fix version is included in the bundle. Analysis should center on reachability, firmware confirmation, and source review without assuming broader product impact.
Mitigation direction
- Check FIBARO guidance for affected firmware and fixed versions.
- Restrict Home Center administration interfaces to trusted networks only.
- Disable unnecessary remote access to Home Center devices.
- Use VPN or equivalent controlled access for administration.
- Review logs for suspicious proxy API or unusual web interface activity.
- Prioritize firmware update or replacement if vendor support is unavailable.
Validation and detection
- Inventory FIBARO Home Center 2, 3, and Lite devices.
- Record exact firmware versions and compare with vendor guidance.
- Identify whether management interfaces are internet accessible.
- Check whether proxy API access is exposed to untrusted users.
- Review web logs for unusual requests using the 'url' parameter.
- Document compensating controls such as segmentation and access restrictions.
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.
CWE-829: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2020-36905 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
- 7.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N3.93.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.5HighVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Source materials
- CVE List V5 sourceCVE List V5
- ExploitDB-48240CVE reference · exploit
- Official Vendor HomepageCVE reference · product
- Zero Science Lab Disclosure (ZSL-2020-5563)CVE reference · third-party-advisory
- Packet Storm Security Exploit EntryCVE reference · exploit
- CXSecurity Vulnerability ListingCVE reference · exploit
- IBM X-Force Vulnerability ExchangeCVE reference · vdb-entry
- VulnCheck Advisory: FIBARO System Home Center 5.021 Remote File Inclusion via Proxy APICVE reference · third-party-advisory
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.
Inclusion of Functionality from Untrusted Control Sphere
Inclusion of Functionality from Untrusted Control Sphere represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.