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Q1What is this vulnerability? (Essence + Consequences)
๐จ **Essence**: A Code Injection flaw in Six Apart Movable Type (MT). <br>๐ฅ **Consequences**: Remote attackers can include and execute arbitrary local Perl files, leading to full **Remote Code Execution (RCE)**.
Q2Root Cause? (CWE/Flaw)
๐ก๏ธ **Root Cause**: Improper use of the **Perl Storable::thaw** function. <br>๐ **Flaw**: The application fails to sanitize inputs passed to this function, allowing malicious payloads to bypass security controls.
Q3Who is affected? (Versions/Components)
๐ฆ **Affected Products**: Six Apart Movable Type.โฆ
๐ **Privileges**: **Remote Code Execution**. <br>๐พ **Data Impact**: Attackers can execute arbitrary commands on the server. This likely leads to full system compromise, data theft, or server takeover.
Q5Is exploitation threshold high? (Auth/Config)
โ ๏ธ **Threshold**: **Low**. <br>๐ **Auth/Config**: Described as a **Remote** vulnerability. No specific authentication requirement is mentioned for the exploit, implying it may be exploitable without valid credentials.
Q6Is there a public Exp? (PoC/Wild Exploitation)
๐ฃ **Public Exploit**: **Yes**. <br>๐ **PoC**: Available via **Metasploit** modules and payload generation files (referenced in GitHub repo by lightsey).โฆ
๐ **Self-Check**: <br>1. Scan for **Movable Type** instances. <br>2. Check installed version against **5.2.12** and **6.0.6**. <br>3. Use Metasploit module `cve-2015-1592` for targeted testing (if authorized).
Q8Is it fixed officially? (Patch/Mitigation)
โ **Official Fix**: **Yes**. <br>๐ **Date**: Released **Feb 12, 2015**. <br>๐ง **Action**: Upgrade to **Movable Type 6.0.7** or **5.2.12** (later patch) to close the vulnerability.
Q9What if no patch? (Workaround)
๐ง **No Patch Workaround**: <br>1. **Isolate**: Restrict network access to the MT server. <br>2. **WAF**: Deploy Web Application Firewall rules to block suspicious Perl/Storable inputs. <br>3.โฆ