جزئیات آسیب‌پذیری

Insecure permissions in fail2ban-client v0.11.2 allows attackers with limited sudo privileges to perform arbitrary operations as root. NOTE: this is disputed by multiple parties because the action for a triggered rule can legitimately be an arbitrary operation as root. Thus, the software is behaving in accordance with its intended privilege model.

• https://packetstorm.news/files/id/189989
• https://gist.github.com/R-Security/1c707a08f9c7f9a91d9d84b5010aaed2
• https://github.com/fail2ban/fail2ban/issues/4110
• http://www.openwall.com/lists/oss-security/2025/12/03/2