Security readout for executives and security teams
Plain-English summary
Alecto IVM-100 devices can expose sensitive secrets through a board-level serial interface during reboot. The disclosed data includes the device view password and the Wi-Fi access point password it used. The main risk is confidentiality loss if someone can physically access the hardware.
Executive priority
Treat this as a moderate physical-access IoT exposure. Prioritize sites where these devices protect sensitive areas, share Wi-Fi with business systems, or are reachable by untrusted people.
Technical view
CVE-2019-20462 describes information disclosure from Alecto IVM-100 2019-11-12 devices via the board serial interface on reboot. CVSS 3.1 is 5.3 with physical attack vector, low complexity, no privileges, no user interaction, changed scope, and high confidentiality impact.
Likely exposure
Exposure is most likely for organizations using Alecto IVM-100 devices where attackers, visitors, contractors, or insiders can physically reach the hardware. The structured affected-product metadata is incomplete, so asset confirmation is necessary.
Exploitation context
The source bundle does not indicate CISA KEV listing or active exploitation. The vulnerability requires physical board-level access, but the CVSS vector indicates low complexity once that access is obtained.
Researcher notes
Evidence is limited to the CVE description and Full Disclosure reference. No patch, firmware version range, exploit activity, or vendor mitigation is provided in the bundle. CWE-284 is listed, although the described impact is sensitive information disclosure.
Mitigation direction
- Inventory any Alecto IVM-100 devices in use.
- Restrict physical access to deployed devices and mounting points.
- Check Alecto guidance for updates, replacement advice, or mitigations.
- Rotate device view and Wi-Fi passwords after suspected physical access.
- Segment IoT devices from sensitive corporate networks.
Validation and detection
- Confirm whether Alecto IVM-100 devices exist in asset records.
- Check deployment locations for unauthorized physical access risk.
- Review physical inspection records for tampering or unexplained reboots.
- Verify Wi-Fi and view credentials are unique and recently rotated.
- Document firmware or device date information where available.
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-284: Authorization and privilege behavior lookup
Authorization weaknesses can support privilege escalation and valid-account review, depending on exploit path. 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 lookupCredential and access behavior lookup
The CVE wording references authentication or credential exposure, so valid-account and credential-access review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2019-20462 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
- Medium
- CVSS
- 5.3 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:C/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:P/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N0.94Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
5.3MediumVector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://www.alecto.nl/CVE reference
- 20240729 Bunch of IoT CVEsCVE reference · mailing-list
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 Access Control
Improper Access Control represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.