Security readout for executives and security teams
Plain-English summary
Sunnet eHRD versions 8 and 9 allow unauthenticated remote path traversal. An attacker could request restricted paths and download system files, creating a confidentiality risk for HR systems that may hold sensitive employee and operational data.
Executive priority
Treat this as a high-priority confidentiality issue for affected HR systems. Prioritize externally reachable eHRD instances first, then internal deployments with broad access.
Technical view
The issue is CWE-22 path traversal caused by inadequate URL special-character filtering. CVSS 3.1 is 7.5: network exploitable, low complexity, no privileges, no user interaction, unchanged scope, high confidentiality impact, no integrity or availability impact reported.
Likely exposure
Exposure is limited to organizations running Sunnet eHRD versions 8 or 9, especially if the application is reachable from the internet or broadly reachable on internal networks.
Exploitation context
The source bundle does not report CISA KEV listing or active exploitation. However, the vulnerability is remotely reachable without authentication and targets file disclosure, so exposed systems deserve prompt attention.
Researcher notes
Evidence supports affected versions 8 and 9, unauthenticated remote path traversal, and file disclosure. The provided sources do not name a patch version, exploitation evidence, or detailed technical indicators.
Mitigation direction
- Confirm whether Sunnet eHRD versions 8 or 9 are deployed.
- Check Sunnet or TWCERT guidance for fixed versions or official mitigations.
- Restrict eHRD access to trusted networks or VPN while remediation is pending.
- Review web server and application logs for suspicious traversal attempts.
- Assess whether downloaded files could expose secrets or employee data.
Validation and detection
- Inventory eHRD instances and confirm exact product versions.
- Verify whether any instance is internet-facing or broadly internally reachable.
- Review access logs for abnormal restricted-path requests and file-download patterns.
- Confirm vendor remediation status against the TWCERT advisory.
- Document compensating controls if a vendor fix cannot be applied immediately.
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-22: File access and web shell behavior lookup
File traversal and upload weaknesses can lead teams to review file, web shell, execution, and collection 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 lookupFile access behavior lookup
The CVE wording references file access or upload behavior, so file telemetry and web shell review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2021-43358 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
- https://www.twcert.org.tw/tw/cp-132-5353-4ebee-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 Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.