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Q1What is this vulnerability? (Essence + Consequences)
๐จ **Essence**: Hastymail RC2 < 2.1.1 has an **SQL Injection** flaw. ๐ **Consequences**: Attackers can execute **arbitrary commands** via the `rs` or `rsargs[]` parameters in the 'Drafts' mailbox.โฆ
๐ก๏ธ **Root Cause**: Improper input validation in **PHP** code. ๐ **Flaw**: The application fails to sanitize the `rs` and `rsargs[]` parameters passed through the default URI.โฆ
๐ต๏ธ **Hackers Can**: Execute **arbitrary commands** on the server. ๐ **Privileges**: Likely full control over the database and potentially the underlying OS via command execution.โฆ
๐ฉน **Fixed?**: Yes. The vulnerability exists in versions **before 2.1.1**. ๐ **Patch**: Upgrade to **Hastymail 2.1.1** or later. ๐ **Mitigation**: Ensure you are not running any RC2 pre-release versions.
Q9What if no patch? (Workaround)
๐ง **No Patch?**: Disable the 'Drafts' mailbox feature if possible. ๐ก๏ธ **WAF**: Block requests containing suspicious SQL syntax in `rs` or `rsargs[]` parameters.โฆ
๐ฅ **Urgency**: **CRITICAL**. ๐จ **Priority**: Patch immediately. Published in **Nov 2011**, but the impact (Arbitrary Command Execution) is severe.โฆ