Untrusted search path vulnerability in JustSystems Ichitaro 2011 Sou, Ichitaro 2006 through 2011, Ichitaro Government 2006 through 2010, Ich
Untrusted search path vulnerability in JustSystems Ichitaro 2011 Sou, Ichitaro 2006 through 2011, Ichitaro Government 2006 through 2010, Ichitaro Portable with oreplug, Ichitaro Viewer, JUST School, JUST School 2009 and 2010, JUST Jump 4, JUST Frontier, and oreplug allows local users to gain privileges via a Trojan horse DLL in the current working directory.
- Published
- Apr 27, 2012
- Updated
- Jun 16, 2026
- EPSS
- 0.4% · 32th percentile
- CWE
- —
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Report tools
Action score
27
Monitor
Low priority for now.
- CVSS
- 27 / 40 · 6.9 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 0.4%
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| justsystems | ichitaro | cpe:2.3:a:justsystems:ichitaro |
| justsystems | ichitaro portable with oreplug | cpe:2.3:a:justsystems:ichitaro_portable_with_oreplug |
| justsystems | ichitaro viewer | cpe:2.3:a:justsystems:ichitaro_viewer |
| justsystems | just frontier | cpe:2.3:a:justsystems:just_frontier |
| justsystems | just jump | cpe:2.3:a:justsystems:just_jump |
| justsystems | just school | cpe:2.3:a:justsystems:just_school |
| justsystems | oreplug | cpe:2.3:a:justsystems:oreplug |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- justsystems ichitaro2006
- justsystems ichitaro2007
- justsystems ichitaro2008
- justsystems ichitaro2009
- justsystems ichitaro2010
- justsystems ichitaro2011
- justsystems ichitaro portable with oreplugall versions
- justsystems ichitaro viewerall versions
- justsystems just frontierall versions
- justsystems just jump4
- justsystems just schoolall versions
- justsystems just school2009
- justsystems just school2010
- justsystems oreplugall versions
Same product
justsystems: all recordsOther highest-scoring records for the same primary product.
- CVE-2014-7247Unspecified vulnerability in JustSystems Ichitaro 2008 through 2011; Ichitaro Government 6, 7, 2008, 2009, and 2010; Ichitaro Pro; Ichitaro 42Plan
- CVE-2013-3644Unspecified vulnerability in JustSystems Ichitaro 2006 through 2013; Ichitaro Pro through 2; Ichitaro Government 6, 7, and 2006 through 201041Plan
- CVE-2017-2790When processing a record type of 0x3c from a Workbook stream from an Excel file (.xls), JustSystems Ichitaro Office trusts that the size is 40Plan
- CVE-2017-2789When copying filedata into a buffer, JustSystems Ichitaro Office 2016 Trial will calculate two values to determine how much data to copy fro40Plan
- CVE-2011-1331JustSystems Ichitaro 2005 through 2011, Ichitaro Government 6, Ichitaro Government 2006 through 2010, Ichitaro Portable, Ichitaro Pro, and I39Monitor
- CVE-2010-3916Unspecified vulnerability in JustSystems Ichitaro and Ichitaro Government allows remote attackers to execute arbitrary code via a crafted do39Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
No fix version is recorded for this entry. Check the references for vendor advisories.
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
If successful
- Confidentiality
- C · data can be read
- Integrity
- C · data or configuration can be modified
- Availability
- C · the service can be disrupted
- Attack complexity
- M
- Confidentiality impact
- C
- Integrity impact
- C
- Availability impact
- C
Weakness class (CWE)
—
CVSS vector
AV:L/AC:M/Au:N/C:C/I:C/A:C
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
MITRE has no CAPEC/ATT&CK mapping for this CWE.
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpChange log
No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.
References
- jvn.jp/en/jp/JVN95378720/index.html
- jvndb.jvn.jp/jvndb/JVNDB-2012-000034
- osvdb.org/81472
- www.justsystems.com/jp/info/js12001.html
Vendor advisories and official records. Exploit/PoC links are deliberately left out.