PeerBanHelper automatically blocks unwanted, leeching, and abnormal BitTorrent peers using customizable and cloud rules. From 5.0.0 until 9.3.15, the /api/statistic/analysis/field endpoint accepts a crafted field query parameter from an authenticated user and passes it to countField or sumField. The mapField() method forwards unrecognized field names without sanitization, so unrecognized field names are interpolated into SQL through ${field} across the SQLite, MySQL, and PostgreSQL mappers.
Successful exploitation can read all data in the PeerBanHelper database. This issue is fixed in version 9.3.15.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
High
Admin privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
High
Complete data leak
Integrity
None
No data modification
Availability
None
No disruption
CVSS Vector v3.1
Weakness Type (CWE)
References 3
https://github.com/PBH-BTN/PeerBanHelper/commit/bec34c8b93c6ea3a3bc2ad992aedd41…
security-advisories@github.com
https://github.com/PBH-BTN/PeerBanHelper/releases/tag/v9.3.15
security-advisories@github.com
https://github.com/PBH-BTN/PeerBanHelper/security/advisories/GHSA-pc89-mfwm-hj9x
security-advisories@github.com