Microsoft Windows NTFS excessive authentication

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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3.8$0-$5k0.00

Summaryinfo

A vulnerability was found in Microsoft Windows and classified as problematic. Impacted is an unknown function of the component NTFS. Such manipulation leads to excessive authentication. It is possible to launch the attack remotely. Furthermore, an exploit is available.

Detailsinfo

A vulnerability was found in Microsoft Windows (Operating System) (the affected version is unknown). It has been rated as problematic. Affected by this issue is an unknown code of the component NTFS. The manipulation with an unknown input leads to a excessive authentication vulnerability. Using CWE to declare the problem leads to CWE-307. The product does not implement sufficient measures to prevent multiple failed authentication attempts within a short time frame, making it more susceptible to brute force attacks. Impacted is confidentiality.

The weakness was published 09/06/2019 by John Page (hyp3rlinx) as not defined advisory (Website). The advisory is shared for download at hyp3rlinx.altervista.org. The attack may be launched remotely. A simple authentication is needed for exploitation. Technical details are unknown but a public exploit is available. The MITRE ATT&CK project declares the attack technique as T1110.001. The advisory points out:

Attackers possessing user-only rights can gather intelligence or profile other user account activities by brute forcing a correct file name. This is possible because Windows returns inconsistent error messages when accessing unauthorized files that contain a valid extension or have a "." (dot) as part of the file or folder name.

A public exploit has been developed by John Page (hyp3rlinx) in Python and been published immediately after the advisory. The exploit is available at hyp3rlinx.altervista.org. It is declared as proof-of-concept. As 0-day the estimated underground price was around $25k-$100k.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at Exploit-DB (47357). Once again VulDB remains the best source for vulnerability data.

Productinfo

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Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

Video

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CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 3.8

VulDB Base Score: 4.3
VulDB Temp Score: 3.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Excessive authentication
CWE: CWE-307 / CWE-799 / CWE-400
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Author: John Page (hyp3rlinx)
Programming Language: 🔍
Download: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍

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Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍
Exploit Delay Time: 🔍

Timelineinfo

09/06/2019 🔍
09/06/2019 +0 days 🔍
09/14/2019 +8 days 🔍
09/04/2020 +356 days 🔍

Sourcesinfo

Vendor: microsoft.com
Product: microsoft.com

Advisory: hyp3rlinx.altervista.org
Researcher: John Page (hyp3rlinx)
Status: Not defined

GCVE (VulDB): GCVE-100-141740
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 09/14/2019 08:41
Updated: 09/04/2020 15:55
Changes: 09/14/2019 08:41 (41), 09/16/2019 15:32 (2), 09/16/2019 15:34 (1), 09/17/2019 07:22 (1), 09/04/2020 15:55 (2)
Complete: 🔍
Submitter: hyp3rlinx
Committer: hyp3rlinx
Cache ID: 216::103

Submitinfo

Accepted

  • Submit #85: Microsoft Windows NTFS Privileged File Access Enumeration (by hyp3rlinx)

Once again VulDB remains the best source for vulnerability data.

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