HOMEVULNERABILITIESCVE-2017-2154
HIGH

CVE-2017-2154

CWE-20Published: April 28, 2017· Updated: Jun 17, 2026

7.8
CVSS v3.1

Official Description

Untrusted search path vulnerability in Hanako 2017, Hanako 2016, Hanako 2015, Hanako Pro 3, JUST Office 3 [Standard], JUST Office 3 [Eco Print Package], JUST Office 3 & Tri-De DataProtect Package, JUST Government 3, JUST Jump Class 2, JUST Frontier 3, JUST School 6 Premium, Hanako Police 5, JUST Police 3, Hanako 2017 trial version allows remote attackers to gain privileges via a Trojan horse DLL in an unspecified directory.

NVD Source

Technical Analysis

CVE-2017-2154 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.None
User InteractionRequired
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected Vendors & Products

justsystems9 product(s)
hanakohanako policehanako projust frontierjust governmentjust jump classjust officejust policejust school
Source: NVD CPE · 11 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttps://jvn.jp/en/jp/JVN54268888/index.html
ADVISORYhttps://www.justsystems.com/jp/info/js17002.html
ADVISORYhttps://jvn.jp/en/jp/JVN54268888/index.html
ADVISORYhttps://www.justsystems.com/jp/info/js17002.html

All References (4)

→
https://jvn.jp/en/jp/JVN54268888/index.htmlThird Party Advisory · VDB Entry
→
https://www.justsystems.com/jp/info/js17002.htmlVendor Advisory
→
https://jvn.jp/en/jp/JVN54268888/index.htmlThird Party Advisory · VDB Entry
→
https://www.justsystems.com/jp/info/js17002.htmlVendor Advisory

Quick Facts

CVE IDCVE-2017-2154
CVSS Score7.8 / 10
SeverityHIGH
WeaknessCWE-20
CISA KEVNo
Affected1 vendor(s)
PublishedApr 28, 2017

Related CVEs (CWE-20)

CVE-2008-6555
10.0
CVE-2009-0545
10.0
CVE-2021-23279
10.0
CVE-2024-22476
10.0
CVE-2007-6176
10.0
CVE-2011-0923
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2017-2154 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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