Weak Password Hashing with Static Salt Across All Users

CVE-2026-46749 exposes a critical cryptographic weakness in SINEC INS versions prior to V1.0 SP2 Update 6. The vulnerability stems from the use of a hardcoded, static salt value that is identical across all user accounts and installations, combined with an insufficient number of hashing iterations. This fundamentally undermines password security by enabling attackers to precompute rainbow tables and conduct efficient brute-force attacks against all affected systems simultaneously. Organizations running vulnerable versions of SINEC INS—industrial control systems commonly deployed in critical infrastructure—face elevated risk of unauthorized account compromise, potentially leading to lateral movement, system manipulation, or operational disruption.

While this CVE does not map directly to MITRE ATT&CK techniques, Casky's 754 security skills enable practitioners to detect the underlying attack patterns through extended reasoning analysis of credential handling mechanisms and authentication logs. A practitioner using Casky would identify suspicious patterns such as: multiple failed authentication attempts clustering around common weak passwords, successful logins immediately following deployment of known password lists, and authentication anomalies that suggest credential stuffing or dictionary attacks. By correlating weak hashing detection with access logs and behavioral baselines, Casky helps security teams recognize when attackers may be exploiting this vulnerability to gain initial access (ATT&CK Tactic TA0001) or establish persistence through compromised accounts, enabling faster response and remediation of affected SINEC INS instances.