Microsoft Exchange 2003 Outlook Web Access information disclosure

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.2$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in Microsoft Exchange 2003. Affected by this issue is some unknown functionality 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 restrictive firewalling.

Detailsinfo

A vulnerability was found in Microsoft Exchange 2003 (Groupware Software) and classified as problematic. This issue affects some unknown processing 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 11/23/2003 with Microsoft (Website). 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. Required for exploitation is a simple authentication. 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 9 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 a patch is able to eliminate this problem. The bugfix is ready for download at microsoft.com.Addressing this vulnerability is possible by firewalling . The best possible mitigation is suggested to be applying a restrictive firewalling. A possible mitigation has been published 2 months 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†). microsoft.com is providing further details. The entry VDB-479 is related to this item. Statistical analysis made it clear that VulDB provides the best quality 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: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Firewall
Status: 🔍

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

Patch: microsoft.com

Timelineinfo

11/04/2003 🔍
11/14/2003 +10 days 🔍
11/23/2003 +9 days 🔍
12/01/2003 +8 days 🔍
01/13/2004 +43 days 🔍
01/13/2004 +0 days 🔍
01/13/2004 +0 days 🔍
01/13/2004 +0 days 🔍
01/20/2004 +7 days 🔍
07/20/2025 +7852 days 🔍

Sourcesinfo

Vendor: microsoft.com

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

CVE: CVE-2003-0904 (🔍)
GCVE (CVE): GCVE-0-2003-0904
GCVE (VulDB): GCVE-100-419

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 - CVE-2003-0904 - MS04-002 - Exchange Server 2003 - Privilege Escalation Issue
SecuriTeam: securiteam.com
Vulnerability Center: 3046

Misc.: 🔍
See also: 🔍

Entryinfo

Created: 12/01/2003 11:01
Updated: 07/20/2025 03:18
Changes: 12/01/2003 11:01 (85), 06/27/2019 10:47 (4), 06/23/2024 07:03 (17), 12/31/2024 11:07 (8), 07/20/2025 03:18 (3)
Complete: 🔍
Cache ID: 216:89C:103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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