Yayoi Kaikei ykkapi.dll Search Path untrusted search path

CVSS Meta Temp Score
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CTI Interest Score
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6.3$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic was found in Yayoi Kaikei, Aoiro Shinkoku, Kyuuyo, Kyuuyo Keisan, Hanbai and Kokyaku Kanri. This impacts an unknown function in the library ykkapi.dll. Such manipulation as part of Search Path leads to untrusted search path. This vulnerability is traded as CVE-2018-0624. An attack has to be approached locally. Furthermore, there is an exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Yayoi Kaikei, Aoiro Shinkoku, Kyuuyo, Kyuuyo Keisan, Hanbai and Kokyaku Kanri. It has been rated as problematic. Affected by this issue is an unknown function in the library ykkapi.dll. 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. CVE summarizes:

Untrusted search path vulnerability in Multiple Yayoi 17 Series products (Yayoi Kaikei 17 Series Ver.23.1.1 and earlier, Yayoi Aoiro Shinkoku 17 Ver.23.1.1 and earlier, Yayoi Kyuuyo 17 Ver.20.1.4 and earlier, Yayoi Kyuuyo Keisan 17 Ver.20.1.4 and earlier, Yayoi Hanbai 17 Series Ver.20.0.2 and earlier, and Yayoi Kokyaku Kanri 17 Ver.11.0.2 and earlier) allows an attacker to gain privileges via a Trojan horse DLL in an unspecified directory. This flaw exists within the handling of ykkapi.dll loaded by the vulnerable products.

The bug was discovered 07/20/2018. The weakness was shared 09/07/2018 (Website). The advisory is shared for download at jvn.jp. This vulnerability is handled as CVE-2018-0624 since 11/26/2017. The attack needs to be approached locally. The successful exploitation requires a simple authentication. Technical details as well as a public exploit are known. The MITRE ATT&CK project declares the attack technique as T1574.

The exploit is available at exploit-db.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 49 days. During that time the estimated underground price was around $0-$5k.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Exploit-DB (44906). The entry VDB-123703 is related to this item. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.3

VulDB Base Score: 5.3
VulDB Temp Score: 4.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

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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: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

11/26/2017 🔍
07/20/2018 +235 days 🔍
09/07/2018 +48 days 🔍
09/07/2018 +0 days 🔍
09/08/2018 +1 days 🔍
10/04/2025 +2583 days 🔍

Sourcesinfo

Advisory: jvn.jp
Status: Confirmed

CVE: CVE-2018-0624 (🔍)
GCVE (CVE): GCVE-0-2018-0624
GCVE (VulDB): GCVE-100-123704
scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 09/08/2018 08:48
Updated: 10/04/2025 11:46
Changes: 09/08/2018 08:48 (59), 03/21/2020 13:33 (1), 10/04/2025 11:46 (25)
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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