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Sid 1-45977

Message

OS-WINDOWS Microsoft Windows SMB kernel heap memory leak attempt

Summary

This event is generated when an attacker attempts to exploit a memory leak vulnerability in Microsoft Windows.

Impact

Attempted Information Leak

CVE-2017-0143:

CVSS base score 8.1

CVSS impact score 5.9

CVSS exploitability score 2.2

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

CVE-2017-0146:

CVSS base score 8.1

CVSS impact score 5.9

CVSS exploitability score 2.2

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

CVE-2017-0147:

CVSS base score 5.9

CVSS impact score 3.6

CVSS exploitability score 2.2

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Detailed information

CVE-2017-0143: 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.

CVE-2017-0146: 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-2017-0145, and CVE-2017-0148.

CVE-2017-0147: 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."

Affected systems

  • microsoft servermessageblock 1.0

Ease of attack

CVE-2017-0143:

Access Vector

Access Complexity

Authentication

CVE-2017-0146:

Access Vector

Access Complexity

Authentication

CVE-2017-0147:

Access Vector

Access Complexity

Authentication

False positives

False negatives

Corrective action

Contributors

  • Cisco's Talos Intelligence Group

Additional References

  • technet.microsoft.com/en-us/security/bulletin/MS17-010