Microsoft Windows Server 2003 SP2/XP SP3 SmartCard Authentication RDP Packet EsteemAudit privileges management

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.
5.4	$0-$5k	0.00

Summaryinfo

A vulnerability classified as very critical was found in Microsoft Windows Server 2003 SP2/XP SP3. This affects an unknown part of the component SmartCard Authentication. Executing a manipulation as part of RDP Packet can lead to privileges management (EsteemAudit). The attack may be launched remotely. Furthermore, there is an exploit available. This vulnerability has a historic impact due to its background and reception. Upgrading the affected component is advised.

Detailsinfo

A vulnerability has been found in Microsoft Windows Server 2003 SP2/XP SP3 (Operating System) and classified as critical. This vulnerability affects an unknown function of the component SmartCard Authentication. The manipulation as part of a RDP Packet leads to a privileges management vulnerability (EsteemAudit). 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 weakness was shared 04/15/2017 with Shadow Brokers (Website). The advisory is shared for download at techcrunch.com. The public release happened without coordination with the vendor. The attack can be initiated remotely. Technical details are unknown but a public exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 09/23/2020). The MITRE ATT&CK project declares the attack technique as T1068. This vulnerability has a historic impact due to its background and reception.

A public exploit has been developed in Windows Binary and been published immediately after the advisory. It is possible to download the exploit at github.com. It is declared as functional. As 0-day the estimated underground price was around $25k-$100k.

Upgrading to version Vista or Server 2008 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at SecurityTracker (ID 1038264†). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Operating System

Vendor

Microsoft

Name

Windows

Version

License

commercial

Support

end of life (old version)

Website

Vendor: https://www.microsoft.com/
Product: https://www.microsoft.com/en-us/windows

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 5.4

VulDB Base Score: 6.3
VulDB Temp Score: 5.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

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: 🔍

Exploitinginfo

Name: EsteemAudit
Class: Privileges management / EsteemAudit
CWE: CWE-269 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Functional
Programming Language: 🔍
Download: 🔍
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: 🔍
Exploit Delay Time: 🔍

Upgrade: Windows Vista/Server 2008

Timelineinfo

04/14/2017 🔍
04/15/2017 +1 days 🔍
04/15/2017 +0 days 🔍
04/16/2017 +1 days 🔍
09/23/2020 +1256 days 🔍

Sourcesinfo

Vendor: microsoft.com
Product: microsoft.com

Advisory: techcrunch.com
Organization: Shadow Brokers
Status: Not defined

GCVE (VulDB): GCVE-100-99904
SecurityTracker: 1038264

scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 04/16/2017 10:51
Updated: 09/23/2020 17:59
Changes: 04/16/2017 10:51 (49), 09/23/2020 17:59 (4)
Complete: 🔍
Cache ID: 216:3D0:103

VulDB is the best source for vulnerability data and more expert information about this specific topic.