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Q1What is this vulnerability? (Essence + Consequences)
🚨 **Essence**: BMC Control-M fails to stop validating client certificates when a **NULL byte** is found in the email address field.…
📦 **Affected**: **BMC Control-M**. Specifically versions **9.0.18 through 9.0.20**. If you are running any version in this range, you are vulnerable. 📅 **Published**: 2025-09-16.
Q4What can hackers do? (Privileges/Data)
💻 **Attacker Capabilities**: By bypassing ACLs, hackers can potentially achieve **High Impact** on Confidentiality, Integrity, and Availability (CVSS: H/H/H).…
⚖️ **Exploitation Threshold**: **High Complexity (AC:H)**. While no authentication is required (PR:N), the attack requires specific conditions (NULL byte injection in email field) to succeed.…
🔍 **Public Exploit**: **No**. The `pocs` field is empty. There are currently no public Proof-of-Concept (PoC) scripts or widespread wild exploitation reported. However, the risk remains due to the severity of the flaw.
Q7How to self-check? (Features/Scanning)
🔎 **Self-Check**: 1. Check your Control-M version (is it 9.0.18-9.0.20?). 2. Review logs for unusual certificate validation errors or NULL byte anomalies. 3.…
🛠️ **Official Fix**: **Yes**. BMC has released advisories. Refer to the vendor links provided (Knowledge Articles 000441967 & 000442099) for official patching instructions and mitigation steps.
Q9What if no patch? (Workaround)
🚧 **No Patch Workaround**: If you cannot patch immediately, strictly **validate and sanitize input** for client certificate email fields.…