CVE-2022-36344

An unquoted search path vulnerability exists in JustSystems JUST Online Update for J-License bundled with multiple products for corporate users as in Ichitaro through Pro5 and others. Since the affected product starts another program with an unquoted file path, a malicious file may be executed with the privilege of the Windows service if it is placed in a certain path. Affected products are bundled with the following product series: Office and Office Integrated Software, ATOK, Hanako, JUST PDF, Shuriken, Homepage Builder, JUST School, JUST Smile Class, JUST Smile, JUST Frontier, JUST Jump, and Tri-De DetaProtect.

Weakness

The product uses a search path that contains an unquoted element, in which the element contains whitespace or other separators. This can cause the product to access resources in a parent path.

Affected Software

Name	Vendor	Start Version	End Version
Atok_medical_2	Justsystems	*	*
Atok_medical_3	Justsystems	*	*
Atok_pro_3	Justsystems	*	*
Atok_pro_4	Justsystems	*	*
Atok_pro_5	Justsystems	*	*
Hanako_police_5	Justsystems	*	*
Hanako_police_6	Justsystems	*	*
Hanako_police_7	Justsystems	*	*
Hanako_pro_3	Justsystems	*	*
Hanako_pro_4	Justsystems	*	*
Hanako_pro_5	Justsystems	*	*
Homepage_builder_20	Justsystems	*	*
Homepage_builder_21	Justsystems	*	*
Homepage_builder_22	Justsystems	*	*
Ichitaro_government_10	Justsystems	*	*
Ichitaro_government_8	Justsystems	- (including)	- (including)
Ichitaro_government_9	Justsystems	*	*
Ichitaro_pro_3	Justsystems	*	*
Ichitaro_pro_4	Justsystems	*	*
Ichitaro_pro_5	Justsystems	*	*
Just_calc_3	Justsystems	*	*
Just_calc_4	Justsystems	*	*
Just_calc_5	Justsystems	*	*
Just_focus_3	Justsystems	*	*
Just_focus_4	Justsystems	*	*
Just_frontier_3	Justsystems	*	*
Just_government_2	Justsystems	*	*
Just_government_3	Justsystems	*	*
Just_government_4	Justsystems	*	*
Just_government_5	Justsystems	*	*
Just_jump_8	Justsystems	*	*
Just_jump_class	Justsystems	*	*
Just_jump_class_2	Justsystems	*	*
Just_medical_2	Justsystems	*	*
Just_medical_3	Justsystems	*	*
Just_medical_4	Justsystems	*	*
Just_medical_5	Justsystems	*	*
Just_note_3	Justsystems	*	*
Just_note_4	Justsystems	*	*
Just_note_5	Justsystems	*	*
Just_office_2	Justsystems	*	*
Just_office_3	Justsystems	*	*
Just_office_4	Justsystems	*	*
Just_office_5	Justsystems	*	*
Just_pdf_3	Justsystems	*	*
Just_pdf_4	Justsystems	*	*
Just_pdf_5	Justsystems	*	*
Just_police_2	Justsystems	*	*
Just_police_3	Justsystems	*	*
Just_police_4	Justsystems	*	*
Just_police_5	Justsystems	*	*
Just_school_6	Justsystems	*	*
Just_school_7	Justsystems	*	*
Just_smile_6	Justsystems	*	*
Just_smile_7	Justsystems	*	*
Just_smile_8	Justsystems	*	*
Just_smile_class_2	Justsystems	*	*
Shuriken_pro_6	Justsystems	*	*
Shuriken_pro_7	Justsystems	*	*
Tri-de_dataprotect	Justsystems	*	*

Potential Mitigations

Assume all input is malicious. Use an “accept known good” input validation strategy, i.e., use a list of acceptable inputs that strictly conform to specifications. Reject any input that does not strictly conform to specifications, or transform it into something that does.
When performing input validation, consider all potentially relevant properties, including length, type of input, the full range of acceptable values, missing or extra inputs, syntax, consistency across related fields, and conformance to business rules. As an example of business rule logic, “boat” may be syntactically valid because it only contains alphanumeric characters, but it is not valid if the input is only expected to contain colors such as “red” or “blue.”
Do not rely exclusively on looking for malicious or malformed inputs. This is likely to miss at least one undesirable input, especially if the code’s environment changes. This can give attackers enough room to bypass the intended validation. However, denylists can be useful for detecting potential attacks or determining which inputs are so malformed that they should be rejected outright.

NVD	https://nvd.nist.gov/vuln/detail/CVE-2022-36344
CWE	https://cwe.mitre.org/data/definitions/428.html

Unquoted Search Path or Element

Weakness

Affected Software

Potential Mitigations

References