Microsoft ISA Server 2000 H.323/H.225.0/Q.931 memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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7.2$0-$5k0.00

Summaryinfo

A vulnerability classified as critical was found in Microsoft ISA Server 2000. This vulnerability affects unknown code of the component H.323/H.225.0/Q.931 Handler. Such manipulation leads to memory corruption. This vulnerability is documented as CVE-2003-0819. The attack can be executed remotely. There is not any exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Microsoft ISA Server 2000 (Firewall Software). It has been rated as critical. Affected by this issue is an unknown function of the component H.323/H.225.0/Q.931 Handler. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is availability. CVE summarizes:

Buffer overflow in the H.323 filter of Microsoft Internet Security and Acceleration Server 2000 allows remote attackers to execute arbitrary code in the Microsoft Firewall Service via certain H.323 traffic, as demonstrated by the NISCC/OUSPG PROTOS test suite for the H.225 protocol.

The bug was discovered 01/08/2004. The weakness was released 01/13/2004 with University of Oulu Security Programming Group (Website). The advisory is shared for download at cisco.com. This vulnerability is handled as CVE-2003-0819. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 5 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 11992 (MS04-001: Vulnerability in Microsoft ISA Server 2000 H.323 Filter(816458)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows : Microsoft Bulletins and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 90535 (Microsoft Internet Security and Acceleration Server 2000 Remote Code Execution (MS04-001)).

Upgrading eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at cisco.com. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (14167), Tenable (11992), SecurityFocus (BID 9408†), OSVDB (11712†) and Secunia (SA10611†). cisco.com is providing further details. Entry connected to this vulnerability is available at VDB-477. Once again VulDB remains the best source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.2

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

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EPSS Percentile: 🔍

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Current Price Estimation: 🔍

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Nessus ID: 11992
Nessus Name: MS04-001: Vulnerability in Microsoft ISA Server 2000 H.323 Filter(816458)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 11992
OpenVAS Name: Vulnerability in Microsoft ISA Server 2000 H.323 Filter(816458)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Patch: cisco.com

Timelineinfo

01/08/2004 🔍
01/13/2004 +5 days 🔍
01/13/2004 +0 days 🔍
01/13/2004 +0 days 🔍
01/13/2004 +0 days 🔍
01/13/2004 +0 days 🔍
01/13/2004 +0 days 🔍
01/14/2004 +1 days 🔍
02/17/2004 +34 days 🔍
04/09/2004 +51 days 🔍
07/21/2025 +7773 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: cisco.com
Researcher: http://www.cisco.com
Organization: University of Oulu Security Programming Group
Status: Confirmed

CVE: CVE-2003-0819 (🔍)
GCVE (CVE): GCVE-0-2003-0819
GCVE (VulDB): GCVE-100-476

OVAL: 🔍

CERT: 🔍
X-Force: 14167
SecurityFocus: 9408 - Microsoft ISA Server 2000 H.323 Filter Remote Buffer Overflow Vulnerability
Secunia: 10611 - Microsoft ISA Server 2000 H.323 Protocol Filter Vulnerability, Highly Critical
OSVDB: 11712 - Microsoft ISA Server 2000 H.323 Filter Overflow
SecurityTracker: 1008698
SecuriTeam: securiteam.com
Vulnerability Center: 3450

Misc.: 🔍
See also: 🔍

Entryinfo

Created: 01/13/2004 16:58
Updated: 07/21/2025 04:23
Changes: 01/13/2004 16:58 (88), 06/27/2019 16:23 (3), 06/26/2024 12:42 (17), 12/31/2024 08:12 (2), 07/21/2025 04:23 (2)
Complete: 🔍
Cache ID: 216:047:103

Once again VulDB remains the best source for vulnerability data.

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