Microsoft Exchange Server 2003 CU7/2003 SP1 Meeting access control

CVSS Meta Temp Score
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CTI Interest Score
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5.7$0-$5k0.00

Summaryinfo

A vulnerability has been found in Microsoft Exchange Server 2003 CU7/2003 SP1 and classified as critical. This issue affects some unknown processing of the component Meeting Handler. The manipulation leads to access control. This vulnerability is traded as CVE-2015-1631. There is no exploit available. To fix this issue, it is recommended to deploy a patch.

Detailsinfo

A vulnerability was found in Microsoft Exchange Server 2003 CU7/2003 SP1 (Groupware Software). It has been rated as critical. This issue affects an unknown part of the component Meeting Handler. The manipulation with an unknown input leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. Impacted is integrity, and availability. The summary by CVE is:

Microsoft Exchange Server 2013 SP1 and Cumulative Update 7 allows remote attackers to spoof meeting organizers via unspecified vectors, aka "Exchange Forged Meeting Request Spoofing Vulnerability."

The weakness was shared 03/10/2015 as MS15-026 as confirmed bulletin (Technet). It is possible to read the advisory at technet.microsoft.com. The identification of this vulnerability is CVE-2015-1631 since 02/17/2015. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 81740 (MS15-026: Vulnerabilities in Microsoft Exchange Server Could Allow Elevation of Privilege (3040856)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows : Microsoft Bulletins. The commercial vulnerability scanner Qualys is able to test this issue with plugin 74275 (Microsoft Exchange Server Elevation of Privilege Vulnerabilities (MS15-026)).

Applying the patch MS15-026 is able to eliminate this problem. The bugfix is ready for download at technet.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 (101159), Tenable (81740), SecurityFocus (BID 72895†), SecurityTracker (ID 1031900†) and Vulnerability Center (SBV-49000†). The entries VDB-73975, VDB-73976, VDB-73977 and VDB-73978 are related to this item. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
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CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 5.7

VulDB Base Score: 6.5
VulDB Temp Score: 5.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
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Exploitinginfo

Class: Access control
CWE: CWE-284 / CWE-266
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ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Unproven

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EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 81740
Nessus Name: MS15-026: Vulnerabilities in Microsoft Exchange Server Could Allow Elevation of Privilege (3040856)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 800166
OpenVAS Name: Microsoft Exchange Server Privilege Escalation Vulnerability (3040856)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
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Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Patch
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Patch: MS15-026

Timelineinfo

02/17/2015 🔍
03/04/2015 +15 days 🔍
03/10/2015 +6 days 🔍
03/10/2015 +0 days 🔍
03/10/2015 +0 days 🔍
03/10/2015 +0 days 🔍
03/11/2015 +1 days 🔍
03/11/2015 +0 days 🔍
03/11/2015 +0 days 🔍
04/15/2022 +2592 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: MS15-026
Status: Confirmed

CVE: CVE-2015-1631 (🔍)
GCVE (CVE): GCVE-0-2015-1631
GCVE (VulDB): GCVE-100-73979

OVAL: 🔍

X-Force: 101159 - Microsoft Exchange Server meeting request spoofing
SecurityFocus: 72895 - Microsoft Exchange Server CVE-2015-1631 Meeting Request Spoofing Vulnerability
SecurityTracker: 1031900 - Microsoft Exchange Server Bugs Permit Cross-Site Scripting and Account Spoofing Attacks
Vulnerability Center: 49000 - [MS15-026] Microsoft Exchange Server Remote Spoofing Vulnerability in Exchange Forged Meeting Request, Medium

See also: 🔍

Entryinfo

Created: 03/11/2015 10:47
Updated: 04/15/2022 10:01
Changes: 03/11/2015 10:47 (80), 06/22/2017 10:41 (6), 04/15/2022 10:01 (3)
Complete: 🔍
Cache ID: 216::103

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