CyberSecBulletin
CVE-2023-37376NVD status: Modified

Tecnomatix Plant Simulation V2201: Access of Resource Using Incompatible Type

CVE-2023-37376 is a high-severity access of resource using incompatible type vulnerability in Tecnomatix Plant Simulation V2201 from Siemens, with a CVSS 3.1 base score of 7.8 out of 10. It can be exploited with local access to the system by an unauthenticated attacker, but only if a user takes part, for example by opening a link or file. Affected Tecnomatix Plant Simulation V2201 versions: All versions < V2201.0008. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.23% chance of exploitation within 30 days, which is low compared with other CVEs.

Next patch cycle

High severity with no evidence of exploitation so far.

What to do

  1. Update Tecnomatix to 2201.0008 or 2302.0002, whichever matches your release line, or a later version.
  2. Read the advisory on cert-portal.siemens.com for workarounds and exact fixed builds.
  3. Because the attack needs a user to take part, warn users about unexpected links and files related to this product until it is patched.

Affected products and versions

VendorProductAffected versionsFixed in
SiemensTecnomatix Plant Simulation V2201All versions < V2201.0008Not stated
SiemensTecnomatix Plant Simulation V2302All versions < V2302.0002Not stated
SiemensTecnomatix2201 up to, but not including, 2201.0008; 2302 up to, but not including, 2302.00022201.0008, 2302.0002

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
LocalThe attacker needs local access or must trick a user into running something.
Attack complexity
LowNo special conditions are needed; the attack works reliably.
Privileges required
NoneNo account or login is needed.
User interaction
RequiredA user must take an action such as opening a file or link.
Scope
UnchangedImpact stays within the vulnerable component.
Confidentiality
HighAll data handled by the component can be read.
Integrity
HighData or code can be modified at will.
Availability
HighThe component can be taken down completely.

Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H. Scored by NVD.

Scoring systemScoreSeverityScored by
CVSS 3.17.8HighCNA (siemens.com)
CVSS 3.17.8HighNVD

Official description

A vulnerability has been identified in Tecnomatix Plant Simulation V2201 (All versions < V2201.0008), Tecnomatix Plant Simulation V2302 (All versions < V2302.0002). The affected application contains a type confusion vulnerability while parsing STP files. This could allow an attacker to execute code in the context of the current process. (ZDI-CAN-21051)

Source: the CVE record as published by its numbering authority, via NVD and CVE.org.

The underlying weakness: Access of Resource Using Incompatible Type

The product allocates or initializes a resource such as a pointer, object, or variable using one type, but it later accesses that resource using a type that is incompatible with the original type.

More Access of Resource Using Incompatible Type vulnerabilities (CWE-843)

Timeline

  1. CVE record published.
  2. CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: total).
  3. Record last changed materially (score, affected products, status or references).

References

Other vulnerabilities in Tecnomatix Plant Simulation V2201

All Tecnomatix Plant Simulation V2201 vulnerabilities

Recent Access of Resource Using Incompatible Type vulnerabilities

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