Headline
CVE-2022-36344: "JustSystems JUST Online Update for J-License" starts a program with an unquoted file path
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.
Published:2022/07/28 Last Updated:2022/07/28
Overview
“JustSystems JUST Online Update for J-License” bundled with multiple JustSystems products for corporate users starts another program with an unquoted file path.
Products Affected
“JustSystems JUST Online Update for J-License” (for corporate users) is affected.
For more information, refer to the information provided by the developer.
Description
“JustSystems JUST Online Update for J-License” is bundled with multiple products for corporate users provided by JustSystems Corporation, as in Ichitaro through Pro5 and others, and it is registered as a Windows service.
“JustSystems JUST Online Update for J-License” starts another program with an unquoted file path (CWE-428).
Impact
A malicious file may be executed with the privilege of the Windows service.
Solution
Update the software
Update the software to the latest version according to the information provided by the developer.
Vendor Status
References
JPCERT/CC Addendum
Vulnerability Analysis by JPCERT/CC
CVSS v3 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Attack Vector(AV)
Physical §
Local (L)
Adjacent (A)
Network (N)
Attack Complexity(AC)
High (H)
Low (L)
Privileges Required(PR)
High (H)
Low (L)
None (N)
User Interaction(UI)
Required ®
None (N)
Scope(S)
Unchanged (U)
Changed ©
Confidentiality Impact©
None (N)
Low (L)
High (H)
Integrity Impact(I)
None (N)
Low (L)
High (H)
Availability Impact(A)
None (N)
Low (L)
High (H)
CVSS v2 AV:L/AC:L/Au:S/C:C/I:C/A:C
Access Vector(AV)
Local (L)
Adjacent Network (A)
Network (N)
Access Complexity(AC)
High (H)
Medium (M)
Low (L)
Authentication(Au)
Multiple (M)
Single (S)
None (N)
Confidentiality Impact©
None (N)
Partial §
Complete ©
Integrity Impact(I)
None (N)
Partial §
Complete ©
Availability Impact(A)
None (N)
Partial §
Complete ©
Comment
The analysis assumes that Windows filesystem ACLs are configured in a certain way where a non-administrative user can abuse the issue.
Credit
Hiroki MATSUKUMA of Cyber Defense Institute, Inc. reported this vulnerability to IPA.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.
Other Information