Microsoft Exchange 2003 Outlook Web Access information disclosure

CVSS Meta Temp Score
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CTI Interest Score
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5.2$0-$5k0.00

Summaryinfo

A vulnerability has been found in Microsoft Exchange 2003 and classified as critical. The affected element is an unknown function of the component Outlook Web Access. The manipulation leads to information disclosure. This vulnerability is traded as CVE-2003-0904. It is possible to initiate the attack remotely. There is no exploit available. It is recommended to apply a patch to fix this issue.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Microsoft Exchange 2003 (Groupware Software). This issue affects an unknown part of the component Outlook Web Access. The manipulation with an unknown input leads to a information disclosure vulnerability. Using CWE to declare the problem leads to CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. Impacted is confidentiality, and integrity. The summary by CVE is:

Microsoft Exchange 2003 and Outlook Web Access (OWA), when configured to use NTLM authentication, does not properly reuse HTTP connections, which can cause OWA users to view mailboxes of other users when Kerberos has been disabled as an authentication method for IIS 6.0, e.g. when SharePoint Services 2.0 is installed.

The bug was discovered 11/14/2003. The weakness was shared 01/13/2004 with Microsoft as MS04-002 as confirmed bulletin (Technet). It is possible to read the advisory at microsoft.com. The identification of this vulnerability is CVE-2003-0904 since 11/04/2003. The attack may be initiated remotely. A simple authentication is necessary for exploitation. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1592 according to MITRE ATT&CK.

The vulnerability was handled as a non-public zero-day exploit for at least 60 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 11989 (MS04-002: Exchange Privilege Escalation (832759)), 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 50088 (Microsoft Exchange Server 2003 Outlook Web Access Random Mailbox Access Vulnerability (MS04-002)).

Applying the patch MS04-002 is able to eliminate this problem. The bugfix is ready for download at microsoft.com. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (13869), Tenable (11989), SecurityFocus (BID 9409†), OSVDB (3490†) and Secunia (SA10615†). The entry VDB-419 is related to this item. Be aware that VulDB is the high quality 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: 5.4
VulDB Meta Temp Score: 5.2

VulDB Base Score: 5.4
VulDB Temp Score: 5.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
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Exploitinginfo

Class: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 11989
Nessus Name: MS04-002: Exchange Privilege Escalation (832759)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

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

Patch: MS04-002

Timelineinfo

11/04/2003 🔍
11/14/2003 +10 days 🔍
11/14/2003 +0 days 🔍
11/30/2003 +16 days 🔍
01/13/2004 +44 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 🔍
01/15/2004 +1 days 🔍
01/20/2004 +5 days 🔍
07/20/2025 +7852 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: MS04-002
Researcher: http://www.microsoft.com
Organization: Microsoft
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2003-0904 (🔍)
GCVE (CVE): GCVE-0-2003-0904
GCVE (VulDB): GCVE-100-479

OVAL: 🔍

CERT: 🔍
X-Force: 13869 - Microsoft Exchange Server OWA could allow unauthorized email account access, Medium Risk
SecurityFocus: 9409 - Microsoft Exchange Server 2003 Outlook Web Access Random Mailbox Access Vulnerability
Secunia: 10615 - Microsoft Exchange 2003 May Provide Access to Wrong Mailbox, Less Critical
OSVDB: 3490 - Microsoft Exchange 2003 OWA Mailbox Access Information Disclosure
SecuriTeam: securiteam.com
Vulnerability Center: 3046 - [MS04-002] Microsoft Exchange Server 2003 and Microsoft OWA Allows Incorrect OWA Requests, Medium

See also: 🔍

Entryinfo

Created: 01/15/2004 10:26
Updated: 07/20/2025 03:18
Changes: 01/15/2004 10:26 (93), 06/27/2019 16:27 (4), 12/31/2024 11:07 (17), 07/20/2025 03:18 (2)
Complete: 🔍
Cache ID: 216:B93:103

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