CVE-2009-3103

Public Exploit

Description

Array index error in the SMBv2 protocol implementation in srv2.sys in Microsoft Windows Vista Gold, SP1, and SP2, Windows Server 2008 Gold and SP2, and Windows 7 RC allows remote attackers to execute arbitrary code or cause a denial of service (system crash) via an & (ampersand) character in a Process ID High header field in a NEGOTIATE PROTOCOL REQUEST packet, which triggers an attempted dereference of an out-of-bounds memory location, aka "SMBv2 Negotiation Vulnerability." NOTE: some of these details are obtained from third party information.

Category

10.0
CVSS
Severity: Critical
CVSS 2.0 •
EPSS 92.27% Top 5%
Vendor Advisory microsoft.com Vendor Advisory secunia.com Vendor Advisory microsoft.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.securityfocus.com/bid/36299 vdb entry exploit
http://www.kb.cert.org/vuls/id/135940 third party advisory us government resource
http://www.microsoft.com/technet/security/advisory/975497.mspx vendor advisory
http://www.reversemode.com/index.php?option=com_content&task=view&id=64&Itemid=1
http://blog.48bits.com/?p=510
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-050 vendor advisory
http://www.us-cert.gov/cas/techalerts/TA09-286A.html third party advisory us government resource
http://isc.sans.org/diary.html?storyid=7093
http://secunia.com/advisories/36623 third party advisory vendor advisory
http://g-laurent.blogspot.com/2009/09/windows-vista7-smb20-negotiate-protocol.html exploit
http://www.securitytracker.com/id?1022848 vdb entry
http://www.securityfocus.com/archive/1/506327/100/0/threaded mailing list
http://www.exploit-db.com/exploits/9594 exploit
http://archives.neohapsis.com/archives/fulldisclosure/2009-09/0090.html exploit mailing list
http://osvdb.org/57799 vdb entry
https://exchange.xforce.ibmcloud.com/vulnerabilities/53090 vdb entry
http://www.securityfocus.com/archive/1/506300/100/0/threaded mailing list
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6489 signature vdb entry

Frequently Asked Questions

What is the severity of CVE-2009-3103?
CVE-2009-3103 has been scored as a critical severity vulnerability.
How to fix CVE-2009-3103?
To fix CVE-2009-3103, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2009-3103 being actively exploited in the wild?
It is possible that CVE-2009-3103 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~92% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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