Home/CVE/Buffer overflow in the authentication function for Microsoft SQL Server 2000 and Microsoft Desktop Engine (MSDE) 2000 al
CVE

CVE-2002-1123

Buffer overflow in the authentication function for Microsoft SQL Server 2000 and Microsoft Desktop Engine (MSDE) 2000 al

Buffer overflow in the authentication function for Microsoft SQL Server 2000 and Microsoft Desktop Engine (MSDE) 2000 allows remote attackers to execute arbitrary code via a long request to TCP port 1433, aka the "Hello" overflow.

HIGH · CVSS 7.5 EPSS 0.89144
Act now
  • EPSS ≥ 0.50 - high probability of exploitation in the next 30 days
  • EPSS percentile: top 0% of all CVEs by exploitation likelihood
  • Public exploit or PoC is available
  • CVSS base score ≥ 7.0
Sigma rules1 YARA rules0
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Affected Products & Versions

2
microsoft data engineall versions
microsoft sql serverall versions
⚠

Public Exploits & PoCs

2
remoteMicrosoft SQL Server - Hello Overflow (MS02-056) (Metasploit)verified
remoteMicrosoft SQL Server 2000 - User Authentication Remote Buffer Overflowverified
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Sigma Hunt Rules

1
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
producthighSuspicious Child Process Of SQL Server
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Scoring & Timeline

7.5
HIGH · CVSS v2 (legacy) · cve@mitre.org
View on NVD
This CVE predates CVSS v3; the legacy v2 score is shown so triage still has a severity to work with.
v2 Vector
AV:N/AC:L/Au:N/C:P/I:P/A:P
Published to NVD24 Sep 2002 · 04:00 AM
🔗

References & Sources

6
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://marc.info/?l=bugtraq&m=102873609025020&w=2
http://online.securityfocus.com/archive/1/286220
http://www.ciac.org/ciac/bulletins/n-003.shtml
http://www.iss.net/security_center/static/9788.phpVendor Advisory
http://www.securityfocus.com/bid/5411
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2002/ms02-056
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