CyberSecBulletin
CVE-2017-0147Exploited in the wildNVD status: Analyzed

Microsoft Windows SMBv1 Information Disclosure

Published Updated By the CyberSecBulletin desk

CVE-2017-0147 is a high-severity vulnerability in Windows SMB from Microsoft, 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. CISA added it to the Known Exploited Vulnerabilities catalogue on May 24, 2022, which means attacks have been observed in the wild, including in ransomware campaigns.

Patch now

Attackers are already exploiting this vulnerability, according to CISA.

What to do

  1. Update Acuson Sc2000 Firmware to 4.0e or a later version.
  2. Update Syngo Sc2000 Firmware to 4.0e or a later version.
  3. CISA's required action: Apply updates per vendor instructions.
  4. Read the advisory on portal.msrc.microsoft.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
MicrosoftWindows SMBNot specified in the recordNot stated
MicrosoftWindows 10 1507Not specified in the recordNot stated
MicrosoftWindows 10 1511Not specified in the recordNot stated
MicrosoftWindows 10 1607Not specified in the recordNot stated
MicrosoftWindows 7Not specified in the recordNot stated
MicrosoftWindows 8.1Not specified in the recordNot stated
MicrosoftWindows Rt 8.1Not specified in the recordNot stated
MicrosoftWindows Server 2008r2Not stated
MicrosoftWindows Server 2012r2Not stated
MicrosoftWindows Server 2016Not specified in the recordNot stated
MicrosoftWindows VistaNot specified in the recordNot stated
SiemensAcuson P300 Firmware13.02; 13.03; 13.20; 13.21Not stated
SiemensAcuson P500 Firmwareva10; vb10Not stated
SiemensAcuson Sc2000 Firmware4.0 up to, but not including, 4.0e; 5.0a4.0e
SiemensAcuson X700 Firmware1.0; 1.1Not stated
SiemensSyngo Sc2000 Firmware4.0 up to, but not including, 4.0e; 5.0a4.0e
SiemensTissue Preparation System FirmwareNot specified in the recordNot stated
SiemensVersant Kpcr Molecular System FirmwareNot specified in the recordNot stated
SiemensVersant Kpcr Sample Prep FirmwareNot specified in the recordNot stated

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 NVD.

Scoring systemScoreSeverityScored by
CVSS 3.17.5HighNVD
CVSS 3.17.5HighCISA (ADP)
CVSS 2.04.3MediumNVD

Official description

The SMBv1 server in Microsoft Windows Vista SP2; Windows Server 2008 SP2 and R2 SP1; Windows 7 SP1; Windows 8.1; Windows Server 2012 Gold and R2; Windows RT 8.1; and Windows 10 Gold, 1511, and 1607; and Windows Server 2016 allows remote attackers to obtain sensitive information from process memory via a crafted packets, aka "Windows SMB Information Disclosure Vulnerability."

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

Timeline

  1. CVE record published.
  2. Added to CISA's Known Exploited Vulnerabilities catalogue.
  3. Deadline for US federal agencies to remediate, set by CISA.
  4. CISA published its SSVC assessment (exploitation: active, automatable: yes, technical impact: partial).
  5. Record last changed materially (score, affected products, status or references).

References

Technical write-ups (may include proof of concept)

Other vulnerabilities in Windows SMB

All Windows SMB vulnerabilities

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