CyberSecBulletin
CVE-2024-37038NVD status: Modified

Sage 1410: Incorrect Default Permissions

CVE-2024-37038 is a high-severity incorrect default permissions vulnerability in Sage 1410 from Schneider Electric, with a CVSS 3.1 base score of 8.8 out of 10. It can be exploited remotely over the network by an attacker with a low-privileged account, without any action from a user. Affected Sage 1410 versions: Versions C3414-500-S02K5_P8 and prior; c3414-500-s02k5_p8 and earlier. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.37% 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 Sage Rtu Firmware to c3414-500-s02k5_p9 or a later version.
  2. Read the advisory on download.schneider-electric.com for workarounds and exact fixed builds.

Affected products and versions

VendorProductAffected versionsFixed in
Schneider ElectricSage 1410Versions C3414-500-S02K5_P8 and prior; c3414-500-s02k5_p8 and earlierNot stated
Schneider ElectricSage 1430Versions C3414-500-S02K5_P8 and prior; c3414-500-s02k5_p8 and earlierNot stated
Schneider ElectricSage 1450Versions C3414-500-S02K5_P8 and prior; c3414-500-s02k5_p8 and earlierNot stated
Schneider ElectricSage 2400Versions C3414-500-S02K5_P8 and prior; c3414-500-s02k5_p8 and earlierNot stated
Schneider ElectricSage 3030 MagnumVersions C3414-500-S02K5_P8 and priorNot stated
Schneider ElectricSage 4400Versions C3414-500-S02K5_P8 and prior; c3414-500-s02k5_p8 and earlierNot stated
Schneider Electricsage_3030mc3414-500-s02k5_p8 and earlierNot stated
Schneider ElectricSage Rtu Firmwarebefore c3414-500-s02k5_p9c3414-500-s02k5_p9

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
LowA basic user account is enough.
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
HighData or code can be modified at will.
Availability
HighThe component can be taken down completely.

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

Scoring systemScoreSeverityScored by
CVSS 3.17.5HighCNA (se.com)
CVSS 3.18.8HighNVD

Official description

CWE-276: Incorrect Default Permissions vulnerability exists that could allow an authenticated user with access to the device’s web interface to perform unauthorized file and firmware uploads when crafting custom web requests.

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

The underlying weakness: Incorrect Default Permissions

During installation, installed file permissions are set to allow anyone to modify those files.

How developers prevent this class of flaw

  • The architecture needs to access and modification attributes for files to only those users who actually require those actions.
  • Compartmentalize the system to have safe areas where trust boundaries can be unambiguously drawn. Do not allow sensitive data to go outside of the trust boundary and always be careful when interfacing with a compartment outside of the safe area. Ensure that appropriate compartmentalization is built into the system design, and the compartmentalization allows for and reinforces privilege separation functionality. Architects and designers should rely on the principle of least privilege to decide the appropriate time to use privileges and the time to drop privileges.

More Incorrect Default Permissions vulnerabilities (CWE-276)

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 Sage 1410

All Sage 1410 vulnerabilities

Recent Incorrect Default Permissions vulnerabilities

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