MS04-007: ASN.1 parsing vulnerability (828028)

critical Nessus Plugin ID 12052


Arbitrary code can be executed on the remote host.


The remote Windows host has a ASN.1 library that is vulnerable to a flaw 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 (either an IPsec session negotiation, or an HTTPS request) with improperly advertised lengths.

A public code is available to exploit this flaw.


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

See Also

Plugin Details

Severity: Critical

ID: 12052

File Name: smb_nt_ms04-007.nasl

Version: 1.49

Type: local

Agent: windows

Published: 2/10/2004

Updated: 11/15/2018

Supported Sensors: Nessus

Risk Information


Risk Factor: High

Score: 7.4


Risk Factor: Critical

Base Score: 10

Temporal Score: 8.3

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

Vulnerability Information

CPE: cpe:/o:microsoft:windows

Required KB Items: SMB/MS_Bulletin_Checks/Possible

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2/10/2004

Vulnerability Publication Date: 2/10/2004

Exploitable With


Core Impact

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

Reference Information

CVE: CVE-2003-0818

BID: 9633, 9635, 13300

MSFT: MS04-007

MSKB: 828028