VDB-102160 · CVE-2016-4902 · BID 94087

JPKI User's Software up to 3.0.1 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, was found in JPKI User's Software up to 3.0.1. This vulnerability affects unknown code. Executing a manipulation can lead to untrusted search path. This vulnerability is registered as CVE-2016-4902. The attack needs to be launched locally. No exploit is available.

Detailsinfo

A vulnerability classified as problematic was found in JPKI User's Software up to 3.0.1. This vulnerability affects some unknown functionality. 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. CVE summarizes:

Untrusted search path vulnerability in The Public Certification Service for Individuals "The JPKI user's software (for Windows 7 and later)" Ver3.0.1 and earlier, The Public Certification Service for Individuals "The JPKI user's software (for Windows Vista)" Ver3.0.1 and earlier and The Public Certification Service for Individuals "The JPKI user's software" Ver2.6 and earlier allows remote attackers to gain privileges via a Trojan horse DLL in an unspecified directory.

The bug was discovered 11/01/2016. The weakness was published 06/09/2017 by Yuji Tounai with NTT Communications (Website). The advisory is shared for download at jvn.jp. This vulnerability was named CVE-2016-4902 since 05/17/2016. The attack needs to be approached locally. A single authentication is required for exploitation. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1574.

The vulnerability was handled as a non-public zero-day exploit for at least 220 days. During that time the estimated underground price was around $0-$5k.

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 94087†). VulDB is the best source for vulnerability data and more expert information about this specific topic.

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: 6.5

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

05/17/2016 🔍
11/01/2016 +168 days 🔍
11/01/2016 +0 days 🔍
06/09/2017 +220 days 🔍
06/09/2017 +0 days 🔍
06/10/2017 +1 days 🔍
06/20/2020 +1106 days 🔍

Sourcesinfo

Advisory: jvn.jp
Researcher: Yuji Tounai
Organization: NTT Communications
Status: Not defined

CVE: CVE-2016-4902 (🔍)
GCVE (CVE): GCVE-0-2016-4902
GCVE (VulDB): GCVE-100-102160
SecurityFocus: 94087 - JPKI Client Software CVE-2016-4902 DLL Loading Remote Code Execution Vulnerability

Entryinfo

Created: 06/10/2017 08:46
Updated: 06/20/2020 18:41
Changes: 06/10/2017 08:46 (57), 06/20/2020 18:41 (5)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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