Vulnerability in Microsoft Windows Server 2008
CVE-2009-3103
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.
Published · last modified .
CVSS v2 metric
CVSS v2 base score 10.0 (High). Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.923 (99.8th percentile), scored .
High probability of exploitation in the next 30 days — patch promptly. 100th percentile — 99.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.902 · newest: 0.923 · change: +0.021
Affected products
- Microsoft Windows Server 2008 — versions sp2
- Microsoft Windows Vista
Weakness classification (CWE)
Public proof-of-concept exploits
- Sic4rio/CVE-2009-3103---srv2.sys-SMB-Code-Execution-Python-MS09-050-
- sooklalad/ms09050
- bytejmp/MS09-050
- afifudinmtop/CVE-2009-3103
- nicolasdamians/ms09-050-CVE-2009-3103-exploit
- sec13b/ms09-050_CVE-2009-3103
- rapid7/metasploit-framework
- rapid7/metasploit-framework
- rapid7/metasploit-framework
- ARPSyndicate/cvemon
References
- www.securityfocus.com/bid/36299 (Exploit, vdb-entry)
- www.kb.cert.org/vuls/id/135940 (US Government Resource, third-party-advisory)
- www.microsoft.com/technet/security/advisory/975497.mspx (Vendor Advisory)
- www.reversemode.com/index.php
- blog.48bits.com/
- docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-050 (vendor-advisory)
- www.us-cert.gov/cas/techalerts/TA09-286A.html (US Government Resource, third-party-advisory)
- isc.sans.org/diary.html
- secunia.com/advisories/36623 (Vendor Advisory, third-party-advisory)
- g-laurent.blogspot.com/2009/09/windows-vista7-smb20-negotiate-protocol.html (Exploit)
Frequently asked questions
- What is CVE-2009-3103?
- CVE-2009-3103 is a vulnerability in Microsoft Windows Server 2008, classified under CWE-399. Published 2009-09-08.
- Is CVE-2009-3103 known to be exploited?
- 32 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.