CVE-2017-0143highunder attackransomware

CVE-2017-0143: high-severity vulnerability in Microsoft Corporation Windows SMB

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100Vexday Risk Score

Patch now. It under exploitation confirmed by CISA and has a working public exploit.

ssvc Actcvss 8.8epss 93%
from disclosure to weapon31 days
Published on NVDMar 17
1st PoC+31d
metasploitMar 14
CISA KEV+1692d
Action required by CISAfederal deadline: 2022-05-03

Apply updates per vendor instructions.

In short

A flaw in Windows SMB file-sharing protocol allows attackers to send specially crafted network packets that execute malicious code on a computer without authentication. This is critical because SMB is commonly exposed on networks, making vulnerable systems at risk.

Technical detail

CVE-2017-0143 is a remote code execution vulnerability in the SMBv1 server implementation across multiple Windows versions, exploitable via unauthenticated crafted SMB packets. The attack vector is network-based with no pre-authentication required, resulting in arbitrary code execution with system privileges on affected systems.

Summary generated and translated by AI from the official description.

The full analysis of this CVE is available in Portuguese →

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-2017-0144, CVE-2017-0145, CVE-2017-0146, and CVE-2017-0148.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products
Microsoft Corporation · Windows SMB
public PoCs found — 29✓ VexDay Proof
exploitdb✓ VexDay Proofwww.exploit-db.com/exploits/41891exploitdb✓ VexDay Proofwww.exploit-db.com/exploits/43970exploitdb✓ VexDay Proofwww.exploit-db.com/exploits/47456exploitdbwww.exploit-db.com/exploits/41987unverifiedgithubgithub.com/h3x0v3rl0rd/MS17-010_CVE-2017-0143★ 41githubgithub.com/NatteeSetobol/Etern-blue-Windows-7-Checker★ 7githubgithub.com/valarauco/wannafind★ 3githubgithub.com/h3x0v3rl0rd/MS17-010★ 1githubgithub.com/SampatDhakal/Metasploit-Attack-Report★ 0githubgithub.com/gousseine-systems/vuln-rabilit-windows7★ 0githubgithub.com/BlessingOlaniyan/cve-2017-0143-smbv1-analysis★ 0githubgithub.com/Mafiosohack/offensive-security-lab-1★ 0githubgithub.com/Cedric-Martz/EthernalBlue_report★ 0githubgithub.com/FernandoTDalcin/thm-blue-writeup★ 0githubgithub.com/benguelmas/cve-2017-0143★ 0githubgithub.com/hackingyseguridad/smb★ 0githubgithub.com/NeoCoderFSG/Laboratorio-Hacking-Etico-Vulnerabilidad-CVE-2017-0143★ 0githubgithub.com/NeoCoderFSG/post-explotacion-CVE-2017-0143★ 0githubgithub.com/NeoCoderFSG/explotacion-post-CVE-2017-0143★ 0cve_referencewww.exploit-db.com/exploits/41891/unverifiedcve_referencewww.exploit-db.com/exploits/41987/unverifiedvulncheckvulncheck.com/xdb/5a99b35253e9unverifiedvulncheckvulncheck.com/xdb/3e4890416f69unverifiedvulncheckvulncheck.com/xdb/3ec88a1770acunverifiedcve_referencewww.exploit-db.com/exploits/43970/unverifiedcve_referencepacketstormsecurity.com/files/154690/DOUBLEPULSAR-Payload-Execution-Neutralization.htmlunverifiedvulncheckvulncheck.com/xdb/c68199312e94unverifiedcve_referencepacketstormsecurity.com/files/156196/SMB-DOUBLEPULSAR-Remote-Code-Execution.htmlunverifiedvulncheckvulncheck.com/xdb/5dbb3e62a166unverified
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