CyberSecBulletin
CVE-2023-39244NVD status: Analyzed

ESI (Enterprise Storage Integrator) for SAP LAMA: Improper Access Control

CVE-2023-39244 is a critical-severity improper access control vulnerability in ESI (Enterprise Storage Integrator) for SAP LAMA from Dell, with a CVSS 3.1 base score of 9.8 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. The record lists version V10.0.0.0 as the first without the flaw, so updating ESI (Enterprise Storage Integrator) for SAP LAMA to that release or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.64% chance of exploitation within 30 days, higher than 51% of scored CVEs.

Patch this week

Critical severity: a successful attack would have severe impact.

What to do

  1. Update ESI (Enterprise Storage Integrator) for SAP LAMA to V10.0.0.0 or a later version.
  2. Update enterprise_storage_integrator_for_sap_lama to 10.0.0.0 or a later version.
  3. Update Enterprise Storage Integrator For SAP Landscape Management to 10.0.0.0 or a later version.
  4. Read the advisory on dell.com for workarounds and exact fixed builds.
  5. Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.

Affected products and versions

VendorProductAffected versionsFixed in
DellESI (Enterprise Storage Integrator) for SAP LAMAbefore V10.0.0.0V10.0.0.0
Dellenterprise_storage_integrator_for_sap_lamabefore 10.0.0.010.0.0.0
DellEnterprise Storage Integrator For SAP Landscape Managementbefore 10.0.0.010.0.0.0

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
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:N/UI:N/S:U/C:H/I:H/A:H. Scored by NVD.

Scoring systemScoreSeverityScored by
CVSS 3.17.3HighCNA (emc.com)
CVSS 3.19.8CriticalNVD

Official description

DELL ESI (Enterprise Storage Integrator) for SAP LAMA, version 10.0, contains an information disclosure vulnerability in EHAC component. An remote unauthenticated attacker could potentially exploit this vulnerability by eavesdropping the network traffic to gain admin level credentials.

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

The underlying weakness: Improper Access Control

The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

How developers prevent this class of flaw

  • Very carefully manage the setting, management, and handling of privileges. Explicitly manage trust zones in the software.
  • 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 Improper Access Control vulnerabilities (CWE-284)

Timeline

  1. CVE record published.
  2. CISA published its SSVC assessment (exploitation: none, automatable: yes, technical impact: partial).
  3. Record last changed materially (score, affected products, status or references).

References

Other vulnerabilities in ESI (Enterprise Storage Integrator) for SAP LAMA

All ESI (Enterprise Storage Integrator) for SAP LAMA vulnerabilities

Recent Improper Access Control vulnerabilities

Spotted an error? Tell us.