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

A vulnerability, which was classified as problematic, has been found in Microsoft Exchange Server 2013 CU8/2013 CU9 (Groupware Software). This issue affects an unknown functionality of the component Outlook Web Access. The manipulation with an unknown input leads to a cross site scripting vulnerability. Using CWE to declare the problem leads to 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. Impacted is integrity. The summary by CVE is:

Cross-site scripting (XSS) vulnerability in Outlook Web Access (OWA) in Microsoft Exchange Server 2013 Cumulative Update 8 and 9 and SP1 allows remote attackers to inject arbitrary web script or HTML via a crafted e-mail message, aka "Exchange Spoofing Vulnerability."

The weakness was published 09/08/2015 as MS15-103 as confirmed bulletin (Technet). The advisory is shared at technet.microsoft.com. The identification of this vulnerability is CVE-2015-2544 since 03/19/2015. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1059.007 for this issue.

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.

The vulnerability is also documented in the vulnerability database at Tenable (85883). Similar entries are available at 77612 and 77644.

Productinfo

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CPE 2.3info

CPE 2.2info

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CVSSv3info

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

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
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CVSSv2info

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Exploitinginfo

Class: Cross site scripting
CWE: CWE-79 / CWE-74 / CWE-707
ATT&CK: T1059.007

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

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Nessus ID: 85883
Nessus Name: MS15-103: Vulnerabilities in Microsoft Exchange Server Could Allow Information Disclosure (3089250)
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OpenVAS ID: 800166
OpenVAS Name: Microsoft Exchange Server information Disclosure Vulnerability (3089250)
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Threat Intelligenceinfo

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Countermeasuresinfo

Recommended: Patch
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0-Day Time: 🔍

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 🔍
09/09/2015 +1 days 🔍
09/09/2015 +0 days 🔍
06/14/2022 +2470 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: MS15-103
Status: Confirmed

CVE: CVE-2015-2544 (🔍)
SecurityTracker: 1033495
Vulnerability Center: 52533 - [MS15-103] Microsoft Exchange Server 2013 Remote Spoofing Vulnerability, Low
SecurityFocus: 76595

See also: 🔍

Entryinfo

Created: 09/09/2015 10:08
Updated: 06/14/2022 18:43
Changes: 09/09/2015 10:08 (66), 12/09/2017 12:05 (7), 06/14/2022 18:43 (4)
Complete: 🔍

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