Microsoft Windows up to Server 2019 Remote Desktop Service DejaBlue access control

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.9$5k-$25k0.00

A vulnerability was found in Microsoft Windows (Operating System). It has been classified as critical. This affects an unknown functionality of the component Remote Desktop Service. The manipulation with an unknown input leads to a access control vulnerability (DejaBlue). CWE is classifying the issue as CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

A remote code execution vulnerability exists in Remote Desktop Services – formerly known as Terminal Services – when an unauthenticated attacker connects to the target system using RDP and sends specially crafted requests, aka 'Remote Desktop Services? Remote Code Execution Vulnerability'. This CVE ID is unique from CVE-2019-1182, CVE-2019-1222, CVE-2019-1226.

The weakness was published 08/13/2019 as confirmed security update guide (Website). It is possible to read the advisory at portal.msrc.microsoft.com. The public release has been coordinated with Microsoft. This vulnerability is uniquely identified as CVE-2019-1181. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 11/23/2023). The attack technique deployed by this issue is T1068 according to MITRE ATT&CK. The advisory points out:

A remote code execution vulnerability exists in Remote Desktop Services – formerly known as Terminal Services – when an unauthenticated attacker connects to the target system using RDP and sends specially crafted requests. This vulnerability is pre-authentication and requires no user interaction. An attacker who successfully exploited this vulnerability could execute arbitrary code on the target system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.

Applying a patch is able to eliminate this problem. A possible mitigation has been published immediately after the disclosure of the vulnerability.

Similar entries are available at 139879, 139878 and 139876.

Productinfo

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Version

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CPE 2.3info

CPE 2.2info

CVSSv4info

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

CVSSv3info

VulDB Meta Base Score: 9.0
VulDB Meta Temp Score: 8.9

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

Vendor Base Score (Microsoft): 9.8
Vendor Vector (Microsoft): 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Name: DejaBlue
Class: Access control / DejaBlue
CWE: CWE-284 / CWE-266
ATT&CK: T1068

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

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

Timelineinfo

11/26/2018 🔍
08/13/2019 +260 days 🔍
08/13/2019 +0 days 🔍
08/14/2019 +1 days 🔍
11/23/2023 +1562 days 🔍

Sourcesinfo

Vendor: microsoft.com
Product: microsoft.com

Advisory: sa-20190819-01
Status: Confirmed
Coordinated: 🔍

CVE: CVE-2019-1181 (🔍)
scip Labs: https://www.scip.ch/en/?labs.20161215
See also: 🔍

Entryinfo

Created: 08/14/2019 12:02
Updated: 11/23/2023 15:19
Changes: 08/14/2019 12:02 (56), 10/31/2019 09:41 (17), 11/23/2023 15:19 (5)
Complete: 🔍

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