MS04-007: ASN.1 Vulnerability Could Allow Code Execution (828028) (uncredentialed check) (NTLM)

Critical Nessus Plugin ID 12054


Arbitrary code can be executed on the remote host.


The remote Windows host has an ASN.1 library that could allow an attacker to execute arbitrary code on this host.

To exploit this flaw, an attacker would need to send a specially crafted ASN.1 encoded packet with improperly advertised lengths.

This particular check sent a malformed NTLM packet and determined that the remote host is not patched.


Microsoft has released patches for Windows NT, 2000, XP, and 2003.

See Also

Plugin Details

Severity: Critical

ID: 12054

File Name: windows_asn1_vuln_ntlm.nasl

Version: 1.53

Type: remote

Agent: windows

Family: Windows

Published: 2004/02/13

Updated: 2018/11/15

Dependencies: 10150

Risk Information

Risk Factor: Critical

CVSS v2.0

Base Score: 10

Temporal Score: 8.3

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

Temporal Vector: CVSS2#E:F/RL:OF/RC:C

CVSS v3.0

Base Score: 9.8

Temporal Score: 9.1

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:F/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:microsoft:windows

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2004/02/10

Vulnerability Publication Date: 2004/02/10

Exploitable With


Core Impact

Metasploit (MS04-007 Microsoft ASN.1 Library Bitstring Heap Overflow)

Reference Information

CVE: CVE-2003-0818

BID: 9633, 9635, 9743, 13300

MSFT: MS04-007

MSKB: 828028