Easergy T200 (Modbus) Models: T200I, T200E…: Files or Directories Accessible to External Parties
CVE-2024-2052 is a high-severity files or directories accessible to external parties vulnerability in Easergy T200 (Modbus) Models: T200I, T200E, T200P, T200S, T200H from Schneider Electric, with a CVSS 3.1 base score of 7.5 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. Affected Easergy T200 (Modbus) Models: T200I, T200E, T200P, T200S, T200H versions: SC2-04MOD-07000104 through prior. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.51% chance of exploitation within 30 days, which is low compared with other CVEs.
High severity with no evidence of exploitation so far.
What to do
- Update t200i to sc2-04mod-07000104 or a later version.
- Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Schneider Electric | Easergy T200 (Modbus) Models: T200I, T200E, T200P, T200S, T200H | SC2-04MOD-07000104 through prior | Not stated |
| Schneider Electric | Easergy T200 (IEC104) Models: T200I, T200E, T200P, T200S, T200H | SC2-04IEC-07000104 through prior | Not stated |
| Schneider Electric | Easergy T200 (DNP3) Models: T200I, T200E, T200P, T200S, T200H | SC2-04DNP-07000104 through prior | Not stated |
| Schneider Electric | t200i | before sc2-04mod-07000104 | sc2-04mod-07000104 |
Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- NetworkCan be exploited remotely over a network, including the internet.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- NoneNo account or login is needed.
- User interaction
- NoneNo action by a victim is required.
- Scope
- UnchangedImpact stays within the vulnerable component.
- Confidentiality
- HighAll data handled by the component can be read.
- Integrity
- NoneNothing can be modified.
- Availability
- NoneAvailability is not affected.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N. Scored by CNA (se.com).
Official description
CWE-552: Files or Directories Accessible to External Parties vulnerability exists that could allow unauthenticated files and logs exfiltration and download of files when an attacker modifies the URL to download to a different location.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Files or Directories Accessible to External Parties
The product makes files or directories accessible to unauthorized actors, even though they should not be.
How developers prevent this class of flaw
- When storing data in the cloud (e.g., S3 buckets, Azure blobs, Google Cloud Storage, etc.), use the provider's controls to disable public access.
More Files or Directories Accessible to External Parties vulnerabilities (CWE-552)
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: yes, technical impact: partial).
- Record last changed materially (score, affected products, status or references).
References
Other references
Other vulnerabilities in Easergy T200 (Modbus) Models: T200I, T200E, T200P, T200S, T200H
- 9.8 Critical severity
- 8.2 High severity
Recent Files or Directories Accessible to External Parties vulnerabilities
- 7.5 High severity
- 7.5 High severity
- 7.8 High severity
- 7.5 High severity
- 7.5 High severity
- 9.8 Critical severity
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