Security readout for executives and security teams
Plain-English summary
MDT AutoSave allowed a remote attacker to redirect a file path and overwrite an existing file with attacker-controlled content. For industrial environments using MDT AutoSave or A4SP, this is primarily an integrity risk: configuration or operational files could be replaced, potentially disrupting trusted automation workflows.
Executive priority
Treat as a high-priority industrial software remediation item, especially where AutoSave protects control-system configuration. Prioritize version verification, vendor guidance, and network restriction before routine maintenance windows if exposed systems support critical operations.
Technical view
CVE-2021-32949 is a relative path traversal issue in MDT AutoSave. The source bundle states affected function behavior allowed path changes and directory traversal, enabling replacement of an existing file. CVSS 3.1 is 7.5 with network attack vector, low complexity, no privileges, no user interaction, and high integrity impact.
Likely exposure
Exposure is likely limited to organizations running MDT Software AutoSave versions before v6.02.06 or listed affected A4SP versions in industrial control environments. Internet exposure is not established by the supplied sources.
Exploitation context
The bundle does not show CISA KEV listing or cited evidence of active exploitation. The vulnerability is remotely reachable by CVSS vector, but no public exploit status is provided in the supplied sources.
Researcher notes
Evidence supports CWE-23 relative path traversal with high integrity impact. The supplied data does not identify confidentiality or availability impact, exploit availability, or detailed affected build ranges beyond AutoSave before v6.02.06 and listed affected products.
Mitigation direction
- Upgrade MDT AutoSave to v6.02.06 or later where applicable.
- Check MDT Software and CISA guidance for A4SP-specific remediation.
- Restrict network access to AutoSave management interfaces.
- Monitor for unexpected file replacement in AutoSave-controlled paths.
- Review backups and recovery procedures for protected automation assets.
Validation and detection
- Inventory MDT AutoSave and A4SP deployments and versions.
- Confirm whether versions match the affected entries in the bundle.
- Review AutoSave path configuration for unexpected or unsafe paths.
- Check logs and file integrity records for unauthorized replacements.
- Verify segmentation limits access to authorized engineering hosts.
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-23: 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-2021-32949 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:N/I:H/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:N/I:H/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:N/I:H/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://www.cisa.gov/uscert/ics/advisories/icsa-21-189-02CVE reference · x_refsource_CONFIRM
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.
Relative Path Traversal
Relative Path Traversal represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.