CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.1	$0-$5k	0.00

A vulnerability has been found in Citrix XenMobile Server up to 9.x/10.5 RP2 (Connectivity Software) and classified as problematic. This vulnerability affects some unknown processing of the component XML Data Handler. The manipulation with an unknown input leads to a xml external entity reference vulnerability. The CWE definition for the vulnerability is CWE-611. The product processes an XML document that can contain XML entities with URIs that resolve to documents outside of the intended sphere of control, causing the product to embed incorrect documents into its output. As an impact it is known to affect confidentiality. CVE summarizes:

XML external entity (XXE) vulnerability in Citrix XenMobile Server 9.x and 10.x before 10.5 RP3 allows attackers to obtain sensitive information via unspecified vectors.

The bug was discovered 06/07/2017. The weakness was published 06/16/2017 (Website). The advisory is shared for download at support.citrix.com. This vulnerability was named CVE-2017-9231 since 05/24/2017. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available.

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.

Upgrading to version 10.5 RP3 eliminates this vulnerability.

Productinfo

Type

• Connectivity Software

Vendor

• Citrix

Name

• XenMobile Server

Version

• 9.x
• 10.5 RP2

License

• commercial

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Xml external entity reference
CWE: CWE-611 / CWE-610
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	unlock	unlock	unlock	unlock
Today	unlock	unlock	unlock	unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: XenMobile Server 10.5 RP3

Timelineinfo

05/24/2017 🔍
06/07/2017 +14 days 🔍
06/07/2017 +0 days 🔍
06/16/2017 +9 days 🔍
06/16/2017 +0 days 🔍
06/17/2017 +1 days 🔍
12/29/2020 +1291 days 🔍

Sourcesinfo

Vendor: citrix.com

Advisory: support.citrix.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-9231 (🔍)
SecurityTracker: 1038704
SecurityFocus: 98995 - Citrix XenMobile Server CVE-2017-9231 XML External Entity Information Disclosure Vulnerability

Entryinfo

Created: 06/17/2017 10:57
Updated: 12/29/2020 07:14
Changes: 06/17/2017 10:57 (63), 10/23/2019 21:36 (2), 12/29/2020 07:14 (3)
Complete: 🔍

Discussion

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