UNLHA32.DLL up to 2.x DLL Loader 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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6.3$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in UNLHA32.DLL up to 2.x. Affected by this vulnerability is an unknown functionality of the component DLL Loader. This manipulation causes untrusted search path. This vulnerability is tracked as CVE-2018-16189. The attack is restricted to local execution. No exploit exists. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in UNLHA32.DLL up to 2.x. It has been declared as problematic. Affected by this vulnerability is some unknown functionality of the component DLL Loader. The manipulation with an unknown input leads to a untrusted search path vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Untrusted search path vulnerability in Self-Extracting Archives created by UNLHA32.DLL prior to Ver 3.00 allows an attacker to gain privileges via a Trojan horse DLL in an unspecified directory.

The bug was discovered 01/31/2019. The weakness was disclosed 02/13/2019 (Website). It is possible to read the advisory at jvn.jp. This vulnerability is known as CVE-2018-16189 since 08/30/2018. Attacking locally is a requirement. A single authentication is required for exploitation. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1574 according to MITRE ATT&CK.

The vulnerability was handled as a non-public zero-day exploit for at least 13 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 3.00 eliminates this vulnerability.

The entry VDB-130868 is pretty similar. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.4

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
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: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: UNLHA32.DLL 3.00

Timelineinfo

08/30/2018 🔍
01/31/2019 +154 days 🔍
02/13/2019 +13 days 🔍
02/14/2019 +1 days 🔍
05/10/2020 +451 days 🔍

Sourcesinfo

Advisory: jvn.jp
Status: Not defined

CVE: CVE-2018-16189 (🔍)
GCVE (CVE): GCVE-0-2018-16189
GCVE (VulDB): GCVE-100-130867
See also: 🔍

Entryinfo

Created: 02/14/2019 10:47
Updated: 05/10/2020 13:00
Changes: 02/14/2019 10:47 (57), 05/10/2020 13:00 (2)
Complete: 🔍
Cache ID: 216::103

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