Security readout for executives and security teams
Plain-English summary
CVE-2021-28174 is a broken authentication issue in Mitake Smart Stock Selection System. The public description says a remote attacker could access transaction records and perform fraudulent trading without logging in by abusing URL parameters. This is business-relevant because it affects financial transaction integrity, even though the published CVSS score is medium.
Executive priority
Treat as a moderate-priority financial systems issue. Prioritize if the system is internet-accessible, supports live trading, or contains customer transaction records. Escalate quickly if logs show suspicious unauthenticated activity.
Technical view
The vulnerability is classified as CWE-287 with CVSS 3.1 score 6.5. It is network-reachable, low-complexity, requires no privileges or user interaction, and has limited confidentiality and integrity impact. Affected versions are not specified in the provided sources.
Likely exposure
Exposure appears limited to organizations running Mitake Smart Stock Selection System. The source bundle does not identify affected versions, hosting patterns, or internet exposure prevalence, so asset confirmation is required before assigning organizational risk.
Exploitation context
The cited description supports remote unauthenticated abuse through URL parameter manipulation. The CVE is not listed as KEV in the provided bundle, and no cited source confirms active exploitation in the wild.
Researcher notes
Evidence is thin: the CVE names the product and behavior but does not provide affected versions, patch details, or exploit status. Keep analysis scoped to Mitake Smart Stock Selection System and validate through vendor/TW-CERT advisories and local authorization testing.
Mitigation direction
- Check Mitake or TW-CERT guidance for supported remediation or fixed versions.
- Restrict access to the system from untrusted networks pending vendor remediation.
- Review authentication and authorization controls around transaction functions.
- Increase monitoring and reconciliation for transaction activity.
Validation and detection
- Confirm whether Mitake Smart Stock Selection System is deployed internally or externally.
- Identify the installed version, if available, and compare it with vendor guidance.
- Verify transaction records and trading functions require server-side authenticated authorization.
- Review logs for unauthenticated access attempts to transaction-related paths.
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-287: Credential and account abuse lookup
Authentication and credential weaknesses can make valid-account abuse and credential telemetry useful review starting points. 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-2021-28174 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
- 6.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/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:L/I:L/A:N3.92.5Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
6.5MediumVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://www.twcert.org.tw/tw/cp-132-4625-4ccc6-1.htmlCVE 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.
Improper Authentication
Improper Authentication represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.