SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityAnalyzed

CVE-2017-0147

Microsoft Windows SMBv1 Information Disclosure Vulnerability

KEVHIGH 7.5EPSS 99.7%

Does this matter?

Known to be exploited in the wild (CISA KEV, CISA remediation deadline 14 June 2022). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.

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."

CVSS 3.1
7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS
99.69% probability · 100th percentile
CISA KEV
Listed 24 May 2022 · due 14 June 2022 · used in ransomware campaigns
Affected
microsoft/windows 10 1507 · microsoft/windows 10 1511 · microsoft/windows 10 1607 · microsoft/windows 7 · microsoft/windows 8.1 · microsoft/windows rt 8.1 · microsoft/windows server 2008 · microsoft/windows server 2012 · microsoft/windows server 2016 · microsoft/windows vista · siemens/acuson p300 firmware · siemens/acuson p500 firmware · siemens/acuson sc2000 firmware · siemens/acuson x700 firmware · siemens/syngo sc2000 firmware · siemens/tissue preparation system firmware · siemens/versant kpcr molecular system firmware · siemens/versant kpcr sample prep firmware
Source
secure@microsoft.com

CISA notes

Apply updates per vendor instructions. https://nvd.nist.gov/vuln/detail/CVE-2017-0147

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.