VDB-119897 · CVE-2018-0594 · BID 104563

Microsoft Skype on Windows DLL Loader Search Path untrusted search path

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.5$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Microsoft Skype on Windows. This affects an unknown function of the component DLL Loader. The manipulation as part of Search Path leads to untrusted search path. This vulnerability is uniquely identified as CVE-2018-0594. Local access is required to approach this attack. No exploit exists.

Detailsinfo

A vulnerability was found in Microsoft Skype on Windows (Unified Communication Software) (affected version unknown). It has been rated as problematic. This issue affects an unknown functionality of the component DLL Loader. The manipulation as part of a Search Path leads to a untrusted search path vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

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

The bug was discovered 05/17/2018. The weakness was disclosed 06/26/2018 with Mitsui Bussan Secure Directions, Inc. (Website). The advisory is shared at jvn.jp. The identification of this vulnerability is CVE-2018-0594 since 11/27/2017. An attack has to be approached locally. The successful exploitation needs a simple authentication. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 02/22/2020). MITRE ATT&CK project uses the attack technique T1574 for this issue.

The vulnerability was handled as a non-public zero-day exploit for at least 40 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.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 104563†). The entries VDB-119895, VDB-119896, VDB-119898 and VDB-119899 are pretty similar. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Vendor

Name

License

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

11/27/2017 🔍
05/17/2018 +171 days 🔍
05/17/2018 +0 days 🔍
06/26/2018 +39 days 🔍
06/26/2018 +0 days 🔍
06/26/2018 +0 days 🔍
02/22/2020 +606 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: jvn.jp
Organization: Mitsui Bussan Secure Directions, Inc.
Status: Not defined

CVE: CVE-2018-0594 (🔍)
GCVE (CVE): GCVE-0-2018-0594
GCVE (VulDB): GCVE-100-119897
SecurityFocus: 104563 - Multiple Microsoft Products DLL Loading Multiple Remote Code Execution Vulnerabilities

scip Labs: https://www.scip.ch/en/?labs.20140918
See also: 🔍

Entryinfo

Created: 06/27/2018 00:17
Updated: 02/22/2020 08:10
Changes: 06/27/2018 00:17 (65), 02/22/2020 08:10 (4)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Discussion

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