CyberSecBulletin
CVE-2017-0145Exploited in the wildNVD status: Analyzed

Microsoft SMBv1 Remote Code Execution

Published Updated By the CyberSecBulletin desk

CVE-2017-0145 is a high-severity vulnerability in Windows SMB from Microsoft, 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. CISA added it to the Known Exploited Vulnerabilities catalogue on February 10, 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.

Affected products and versions

VendorProductAffected versionsFixed in
MicrosoftWindows SMBNot specified in the recordNot stated
MicrosoftServer Message Block1.0Not 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
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 3.18.8HighNVD
CVSS 3.18.8HighCISA (ADP)
CVSS 2.09.3HighNVD

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 execute arbitrary code via crafted packets, aka "Windows SMB Remote Code Execution Vulnerability." This vulnerability is different from those described in CVE-2017-0143, CVE-2017-0144, CVE-2017-0146, and CVE-2017-0148.

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

Timeline

  1. CVE record published.
  2. CISA published its SSVC assessment (exploitation: active, automatable: no, technical impact: total).
  3. Added to CISA's Known Exploited Vulnerabilities catalogue.
  4. Deadline for US federal agencies to remediate, set by CISA.
  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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