Home/CVE/The RPC component in Windows 2000, Windows NT 4.0, and Windows XP allows remote attackers to cause a denial of service (
CVE

CVE-2002-1561

The RPC component in Windows 2000, Windows NT 4.0, and Windows XP allows remote attackers to cause a denial of service (

The RPC component in Windows 2000, Windows NT 4.0, and Windows XP allows remote attackers to cause a denial of service (disabled RPC service) via a malformed packet to the RPC Endpoint Mapper at TCP port 135, which triggers a null pointer dereference.

MEDIUM · CVSS 5 EPSS 0.62241
Act now
  • EPSS ≥ 0.50 - high probability of exploitation in the next 30 days
  • EPSS percentile: top 2% of all CVEs by exploitation likelihood
  • Public exploit or PoC is available
Sigma rules1 YARA rules0
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Affected Products & Versions

4
microsoft windows 2000all versions
microsoft windows 2000 terminal servicesall versions
microsoft windows ntall versions
microsoft windows xpall versions
⚠

Public Exploits & PoCs

5
dosMicrosoft Windows XP/2000/NT 4.0 - RPC Service Denial of Service (1)verified
dosMicrosoft Windows XP/2000/NT 4.0 - RPC Service Denial of Service (2)verified
dosMicrosoft Windows XP/2000/NT 4.0 - RPC Service Denial of Service (3)verified
dosMicrosoft Windows XP/2000/NT 4.0 - RPC Service Denial of Service (4)verified
pocwww.securityfocus.com · 6005www.securityfocus.com
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Detection Rules (IDS/IPS)

20
et-openGPL NETBIOS SMB IrotIsRunning attemptprotocol-command-decode
et-openGPL NETBIOS SMB IrotIsRunning little endian attemptprotocol-command-decode
et-openGPL NETBIOS SMB IrotIsRunning unicode attemptprotocol-command-decode
et-openGPL NETBIOS SMB IrotIsRunning unicode little endian attemptprotocol-command-decode
et-openGPL NETBIOS SMB-DS IrotIsRunning attemptprotocol-command-decode
et-openGPL NETBIOS SMB-DS IrotIsRunning little endian attemptprotocol-command-decode
Open rulesets (ET Open, Snort Community, abuse.ch) link to source. Commercial rulesets are reference-only.
◈

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.
productmediumWow6432Node Windows NT CurrentVersion Autorun Keys Modification
▣

Scoring & Timeline

5
MEDIUM · 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:N/I:N/A:P
Published to NVD02 Apr 2003 · 05:00 AM
🔗

References & Sources

4
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://www.kb.cert.org/vuls/id/261537US Government Resource
http://www.securityfocus.com/archive/1/296114/2002-10-14/2002-10-20/0Vendor Advisory
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2003/ms03-010
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A59
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