Microsoft Exchange Server 2013 CU8/2013 CU9 Outlook Web Access cross site scripting

CVSS Meta Temp Score
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CTI Interest Score
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4.1$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic was found in Microsoft Exchange Server 2013 CU8/2013 CU9. The affected element is an unknown function of the component Outlook Web Access. Executing a manipulation can lead to cross site scripting. The identification of this vulnerability is CVE-2015-2543. The attack may be launched remotely. There is no exploit available. It is advisable to implement a patch to correct this issue.

Detailsinfo

A vulnerability classified as problematic was found in Microsoft Exchange Server 2013 CU8/2013 CU9 (Groupware Software). This vulnerability affects an unknown function of the component Outlook Web Access. The manipulation with an unknown input leads to a cross site scripting vulnerability. The CWE definition for the vulnerability is CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. As an impact it is known to affect integrity. CVE summarizes:

Cross-site scripting (XSS) vulnerability in Outlook Web Access (OWA) in Microsoft Exchange Server 2013 Cumulative Update 8 and 9 allows remote attackers to inject arbitrary web script or HTML via a crafted e-mail message, aka "Exchange Spoofing Vulnerability."

The weakness was shared 09/08/2015 as MS15-103 as confirmed bulletin (Technet). The advisory is shared for download at technet.microsoft.com. This vulnerability was named CVE-2015-2543 since 03/19/2015. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1059.007.

The vulnerability scanner Nessus provides a plugin with the ID 85883 (MS15-103: Vulnerabilities in Microsoft Exchange Server Could Allow Information Disclosure (3089250)), 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 53001 (Microsoft Exchange Server Information Disclosure Vulnerabilities (MS15-103)).

Applying the patch MS15-103 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 Tenable (85883), SecurityTracker (ID 1033495†) and Vulnerability Center (SBV-52532†). The entries VDB-77612 and VDB-77645 are related to this item. Once again VulDB remains the best source for vulnerability data.

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.1

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Cross site scripting
CWE: CWE-79 / CWE-94 / CWE-74
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

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EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 85883
Nessus Name: MS15-103: Vulnerabilities in Microsoft Exchange Server Could Allow Information Disclosure (3089250)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 800166
OpenVAS Name: Microsoft Exchange Server information Disclosure Vulnerability (3089250)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
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Patch: MS15-103

Timelineinfo

03/19/2015 🔍
09/08/2015 +173 days 🔍
09/08/2015 +0 days 🔍
09/08/2015 +0 days 🔍
09/08/2015 +0 days 🔍
09/08/2015 +0 days 🔍
09/09/2015 +1 days 🔍
09/09/2015 +0 days 🔍
06/14/2022 +2470 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: MS15-103
Status: Confirmed

CVE: CVE-2015-2543 (🔍)
GCVE (CVE): GCVE-0-2015-2543
GCVE (VulDB): GCVE-100-77644
SecurityFocus: 76595
SecurityTracker: 1033495
Vulnerability Center: 52532 - [MS15-103] Microsoft Exchange Server 2013 Remote Spoofing Vulnerability, Low

See also: 🔍

Entryinfo

Created: 09/09/2015 10:08
Updated: 06/14/2022 18:36
Changes: 09/09/2015 10:08 (67), 12/09/2017 12:05 (7), 06/14/2022 18:36 (4)
Complete: 🔍
Cache ID: 216:F23:103

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