Microsoft Exchange Server 2013 SP1 CU8 Same Origin Policy privileges management

CVSS Meta Temp Score
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CTI Interest Score
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7.0$0-$5k0.00

A vulnerability was found in Microsoft Exchange Server 2013 SP1 CU8 (Groupware Software). It has been declared as critical. Affected by this vulnerability is an unknown code block of the component Same Origin Policy. The manipulation with an unknown input leads to a privileges management vulnerability. The CWE definition for the vulnerability is CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

The web applications in Microsoft Exchange Server 2013 SP1 and Cumulative Update 8 allow remote attackers to bypass the Same Origin Policy and send HTTP traffic to intranet servers via a crafted request, related to a Server-Side Request Forgery (SSRF) issue, aka "Exchange Server-Side Request Forgery Vulnerability."

The weakness was disclosed 06/10/2015 with Microsoft as MS15-064 as confirmed bulletin (Technet). It is possible to read the advisory at technet.microsoft.com. This vulnerability is known as CVE-2015-1764 since 02/17/2015. The attack can be launched remotely. The exploitation doesn't need any form of authentication. 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 84085 (MS15-064: Vulnerabilities in Microsoft Exchange Server Could Allow Elevation of Privilege (3062157)), 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 53000 (Microsoft Exchange Server Multiple Vulnerabilities (MS15-064)).

Applying the patch MS15-064 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 vulnerability database at Tenable (84085). The entries 75792 and 75793 are pretty similar.

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CPE 2.3info

CPE 2.2info

CVSSv4info

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CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.0

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
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CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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Exploitinginfo

Class: Privileges management
CWE: CWE-269 / CWE-266
ATT&CK: T1068

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

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EPSS Percentile: 🔍

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Nessus ID: 84085
Nessus Name: MS15-064: Vulnerabilities in Microsoft Exchange Server Could Allow Elevation of Privilege (3062157)
Nessus File: 🔍
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Nessus Family: 🔍

OpenVAS ID: 800166
OpenVAS Name: Microsoft Exchange Server Privilege Escalation Vulnerability (3062157)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
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Threat Intelligenceinfo

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Countermeasuresinfo

Recommended: Patch
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Patch: MS15-064

Timelineinfo

02/17/2015 🔍
06/09/2015 +112 days 🔍
06/09/2015 +0 days 🔍
06/09/2015 +0 days 🔍
06/09/2015 +0 days 🔍
06/10/2015 +1 days 🔍
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06/10/2015 +0 days 🔍
06/10/2015 +0 days 🔍
06/10/2015 +0 days 🔍
05/20/2022 +2536 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: MS15-064
Organization: Microsoft
Status: Confirmed

CVE: CVE-2015-1764 (🔍)
OVAL: 🔍

SecurityTracker: 1032528 - Microsoft Exchange Server Input Validation Flaw Permits Cross-Site Scripting and Cross-Site Request Forgery Attacks
Vulnerability Center: 50487 - [MS15-064] Microsoft Exchange Server 2013 SSRF Vulnerability via a Crafted Request - CVE-2015-1764, Medium
SecurityFocus: 75007 - Microsoft Exchange Server CVE-2015-1764 Same Origin Policy Security Bypass Vulnerability

See also: 🔍

Entryinfo

Created: 06/10/2015 10:17
Updated: 05/20/2022 14:47
Changes: 06/10/2015 10:17 (74), 06/30/2017 05:52 (8), 05/20/2022 14:47 (3)
Complete: 🔍

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