Guns through 8.3.5 contains an improper access control vulnerability in SysNoticeController where requiredPermission defaults to false and is not overridden by any action methods. Authenticated users without assigned roles can exploit this to create, edit, delete, publish and retract system-wide notices affecting arbitrary users and departments.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
None
No data leak
Integrity
High
Complete data modification
Availability
None
No disruption
CVSS Vector v4.0
Weakness Type (CWE)
References 5
https://github.com/stylefeng/Guns
disclosure@vulncheck.com
https://github.com/stylefeng/Guns/blob/2a12947733945d5c06197d99ecaa77d7f2b0aeba…
disclosure@vulncheck.com
https://github.com/stylefeng/Guns/issues/119
disclosure@vulncheck.com
https://repo1.maven.org/maven2/com/javaguns/roses/system-business-portal/8.3.5/…
disclosure@vulncheck.com
https://www.vulncheck.com/advisories/guns-through-8.3.5-improper-access-control…
disclosure@vulncheck.com