VDB-131598 · CVE-2019-5921 · BID 107218

Microsoft Windows 7 DLL Loader Search Path untrusted search path

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.
6.5$5k-$25k0.00

Summaryinfo

A vulnerability described as critical has been identified in Microsoft Windows 7. Impacted is an unknown function of the component DLL Loader. The manipulation as part of Search Path results in untrusted search path. This vulnerability was named CVE-2019-5921. The attack needs to be approached locally. There is no available exploit.

Detailsinfo

A vulnerability classified as critical has been found in Microsoft Windows 7 (Operating System). Affected is an unknown code block of the component DLL Loader. The manipulation as part of a Search Path leads to a untrusted search path vulnerability. CWE is classifying the issue as CWE-426. The product searches for critical resources using an externally-supplied search path that can point to resources that are not under the product's direct control. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Untrusted search path vulnerability in Windows 7 allows an attacker to gain privileges via a Trojan horse DLL in an unspecified directory.

The bug was discovered 02/28/2019. The weakness was presented 03/12/2019 (Website). The advisory is available at jvn.jp. This vulnerability is traded as CVE-2019-5921 since 01/10/2019. Local access is required to approach this attack. The requirement for exploitation is a authentication. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $5k-$25k at the moment (estimation calculated on 07/31/2023). This vulnerability is assigned to T1574 by the MITRE ATT&CK project.

The vulnerability was handled as a non-public zero-day exploit for at least 12 days. During that time the estimated underground price was around $5k-$25k.

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

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Productinfo

Type

Vendor

Name

Version

License

Support

  • end of life (old version)

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.5

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

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Untrusted search path
CWE: CWE-426
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
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: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/10/2019 🔍
02/28/2019 +49 days 🔍
03/12/2019 +12 days 🔍
03/13/2019 +1 days 🔍
07/31/2023 +1601 days 🔍

Sourcesinfo

Vendor: microsoft.com
Product: microsoft.com

Advisory: jvn.jp
Status: Not defined

CVE: CVE-2019-5921 (🔍)
GCVE (CVE): GCVE-0-2019-5921
GCVE (VulDB): GCVE-100-131598
SecurityFocus: 107218

Entryinfo

Created: 03/13/2019 07:18
Updated: 07/31/2023 16:17
Changes: 03/13/2019 07:18 (58), 05/15/2020 16:47 (1), 07/31/2023 16:17 (3)
Complete: 🔍
Cache ID: 216::103

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