Microsoft Windows Server 2008 Remote Desktop Web Access cross site scripting

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.
4.8$0-$5k0.00

A vulnerability was found in Microsoft Windows Server 2008 (Operating System). It has been declared as problematic. This vulnerability affects an unknown functionality of the component Remote Desktop 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 confidentiality, integrity, and availability. CVE summarizes:

Cross-site scripting (XSS) vulnerability in the logon page in Remote Desktop Web Access (RD Web Access) in Microsoft Windows Server 2008 R2 and R2 SP1 allows remote attackers to inject arbitrary web script or HTML via the URI, aka "Remote Desktop Web Access Vulnerability."

The weakness was published 08/09/2011 by Sven Taute as MS11-061 as confirmed bulletin (Technet). The advisory is available at microsoft.com. This vulnerability was named CVE-2011-1263 since 03/04/2011. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1059.007 by the MITRE ATT&CK project.

As 0-day the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 55801 (MS11-061: Vulnerability in Remote Desktop Web Access Could Allow Elevation of Privilege (2546250) (uncredentialed check)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CGI abuses : XSS.

Upgrading eliminates this vulnerability. Applying the patch MS11-061 is able to eliminate this problem. The bugfix is ready for download at microsoft.com. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published immediately after the disclosure of the vulnerability. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 11541.

The vulnerability is also documented in the databases at X-Force (68825) and Tenable (55801). Similar entries are available at 4393, 4389, 4386 and 4388.

Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

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

CVSSv3info

VulDB Meta Base Score: 5.0
VulDB Meta Temp Score: 4.8

VulDB Base Score: 5.0
VulDB Temp Score: 4.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
unlockunlockunlockunlockunlockunlock
unlockunlockunlockunlockunlockunlock
unlockunlockunlockunlockunlockunlock

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

NVD Base Score: 🔍

Exploitinginfo

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

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Dayunlockunlockunlockunlock
Todayunlockunlockunlockunlock

Nessus ID: 55801
Nessus Name: MS11-061: Vulnerability in Remote Desktop Web Access Could Allow Elevation of Privilege (2546250) (uncredentialed check)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Patch: MS11-061
TippingPoint: 🔍

McAfee IPS: 🔍
McAfee IPS Version: 🔍

PaloAlto IPS: 🔍
Fortigate IPS: 🔍

Timelineinfo

03/04/2011 🔍
08/09/2011 +158 days 🔍
08/09/2011 +0 days 🔍
08/09/2011 +0 days 🔍
08/09/2011 +0 days 🔍
08/09/2011 +0 days 🔍
08/10/2011 +1 days 🔍
08/10/2011 +0 days 🔍
08/19/2011 +9 days 🔍
03/19/2021 +3500 days 🔍

Sourcesinfo

Vendor: microsoft.com
Product: microsoft.com

Advisory: MS11-061
Researcher: Sven Taute
Status: Confirmed

CVE: CVE-2011-1263 (🔍)
OVAL: 🔍
IAVM: 🔍

X-Force: 68825
Vulnerability Center: 32659 - [MS11-061] Microsoft Remote Desktop Web Access Cross Site Scripting Vulnerability, Critical
SecurityFocus: 49040 - Microsoft Remote Desktop Web Access CVE-2011-1263 Cross Site Scripting Vulnerability
Secunia: 45561 - Microsoft Windows Remote Desktop Web Access Cross-Site Scripting Vulnerability, Less Critical

scip Labs: https://www.scip.ch/en/?labs.20140213
See also: 🔍

Entryinfo

Created: 08/19/2011 02:00
Updated: 03/19/2021 13:14
Changes: 08/19/2011 02:00 (80), 04/07/2017 12:38 (10), 03/19/2021 13:14 (2)
Complete: 🔍

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Interested in the pricing of exploits?

See the underground prices here!