Security readout for executives and security teams
Plain-English summary
This flaw lets a remote attacker inject operating-system commands into a vulnerable TOTOlink A7100RU router firmware interface. If the management surface is reachable, compromise could expose traffic, change settings, or disrupt connectivity. The CVSS score is critical, but the provided sources do not show active exploitation.
Executive priority
Prioritize discovery and isolation of affected routers, especially internet-exposed devices. This is critical-severity infrastructure risk, but remediation depends on vendor guidance because the provided sources do not name a patch.
Technical view
CVE-2023-24238 is a CWE-77 command injection in TOTOlink A7100RU firmware V7.4cu.2313_B20191024 through the city parameter at setting/delStaticDhcpRules. The CVSS 3.1 vector is network, low complexity, no privileges, no user interaction, with high confidentiality, integrity, and availability impact.
Likely exposure
Exposure is most likely where TOTOlink A7100RU devices running firmware V7.4cu.2313_B20191024 have administrative or API access reachable from untrusted networks. The CVE record has sparse affected-product metadata and no CPEs, so inventory validation is important.
Exploitation context
The source bundle includes a public GitHub reference, but does not provide KEV status or cited evidence of active exploitation. Treat exploitability as serious because the CVSS vector is unauthenticated, network-reachable, and high impact.
Researcher notes
The CVE description identifies the vulnerable parameter and endpoint, but affected metadata is incomplete and lists no CPEs. Do not assume broader TOTOlink model coverage without additional evidence. No KEV listing is provided.
Mitigation direction
- Check TOTOlink guidance for fixed firmware or replacement advice.
- Update affected A7100RU firmware if a vendor fix exists.
- Disable internet-facing administrative access to the router.
- Restrict management access to trusted networks only.
- Replace unsupported affected devices if no fix is available.
Validation and detection
- Inventory TOTOlink A7100RU devices in managed environments.
- Confirm whether firmware version V7.4cu.2313_B20191024 is present.
- Verify management interfaces are not exposed to the internet.
- Review router logs for unusual administrative activity.
- Track vendor advisories because the CVE metadata is incomplete.
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-77: 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-2023-24238 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.
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:H/A:H3.95.9Primary CVE scoreVulnerability scoring details
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
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/Am1ngl/ttt/tree/main/20CVE reference
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 a Command ('Command Injection')
Improper Neutralization of Special Elements used in a Command ('Command Injection') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.