Security readout for executives and security teams
Plain-English summary
This flaw lets a remote attacker abuse the ICX35-HWC gateway web interface to run operating system commands as root. For executives, the business risk is loss of control over a cellular gateway that may support industrial or remote connectivity.
Executive priority
High priority for organizations using these gateways, especially in operational environments. A compromised gateway could affect connectivity, visibility, and trust in remote infrastructure. The immediate decision is whether affected devices exist and whether their web interface is reachable.
Technical view
CVE-2017-20236 is CWE-78 command injection in ProSoft Technology ICX35-HWC Cellular Gateway web UI versions 1.3 and prior. The supplied record rates it CVSS 9.8, network exploitable, low complexity, no privileges, no user interaction, with high confidentiality, integrity, and availability impact.
Likely exposure
Exposure is limited to ProSoft ICX35-HWC Cellular Gateway devices running version 1.3 or prior. Risk is highest where the web management interface is reachable from untrusted networks, corporate networks, partner access paths, remote management networks, or the internet.
Exploitation context
The bundle supports remote command execution through unvalidated web interface fields and root-level impact. It does not show CISA KEV listing or any cited evidence of active exploitation. Treat exploitability as serious, but do not assume confirmed in-the-wild exploitation from these sources alone.
Researcher notes
Evidence is clear for affected product, version range, CWE-78 class, CVSS vector, and root command execution impact. The supplied bundle does not provide CPEs, exploit telemetry, or a specific fixed version. Use vendor guidance before asserting an exact patch path.
Mitigation direction
- Identify all ProSoft ICX35-HWC gateways and record firmware versions.
- Review the Belden/ProSoft advisory for official remediation guidance.
- Remove web management access from untrusted networks.
- Restrict administration to trusted management paths only.
- Prioritize remediation for externally reachable or OT-critical devices.
Validation and detection
- Confirm whether any ICX35-HWC devices run version 1.3 or prior.
- Verify whether the web interface is reachable from untrusted networks.
- Check asset inventories for ProSoft ICX35-HWC Cellular Gateway entries.
- Review remote access paths, firewall rules, and management VLAN reachability.
- Look for unusual administrative activity on exposed devices.
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-78: Command execution behavior lookup
Command injection weaknesses can lead defenders to review execution techniques and command interpreter telemetry. 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 lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2017-20236 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
- Critical
- CVSS
- 9.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/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.
SSVC decision data
CVSS vector scores
2 official scoresWe 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:H/A:H3.95.9VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N——VulnCheckVulnerability scoring details
Base CVSS 4.0 score
9.3CriticalVector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Base CVSS 3.1 score
9.8CriticalVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://assets.belden.com/m/1116a05ab702b2ba/original/Security-Bulletin-User-Interface-ProSoft-ICX35-BSECV-2017-10.pdfCVE reference, VulnCheck · vendor-advisory
- https://www.vulncheck.com/advisories/prosoft-technology-icx35-hwc-command-injection-via-web-interfaceCVE reference, VulnCheck · 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.
Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.