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Q1What is this vulnerability? (Essence + Consequences)
🚨 **Essence**: A **Directory Traversal** flaw in `spring-boot-actuator-logview`.…
🛡️ **CWE-22**: Improper Limitation of a Pathname to a Restricted Directory. 🐛 **Flaw**: The `filename` parameter is sanitized, but the `base` parameter is **not** checked.…
👥 **Vendor**: Lukashinsch (Ffay). 📦 **Product**: `spring-boot-actuator-logview`. 📉 **Affected Versions**: **< 0.2.13**. ✅ **Fixed**: Version 0.2.13 and later are safe.
Q4What can hackers do? (Privileges/Data)
🕵️ **Hackers Can**: Read arbitrary files on the server. 📄 **Data Access**: Logs, config files, source code, or secrets located outside the log root.…
🔍 **Public Exp?**: Yes. 📂 **PoCs Available**: Multiple GitHub repos (e.g., PwCNO-CTO, xiaojiangxl) and Nuclei templates exist. 🌍 **Wild Exploitation**: Possible if the endpoint is exposed and accessible.
Q7How to self-check? (Features/Scanning)
🔎 **Self-Check**: Look for the Maven package `eu.hinsch:spring-boot-actuator-logview`. 📋 **Version**: Check if version is < 0.2.13. 🧪 **Test**: Send request with `base=../` to the logview endpoint.…
🛠️ **Official Fix**: Yes. 📦 **Patch**: Upgrade to **version 0.2.13** or higher. 🔄 **Action**: Update the dependency in your `pom.xml` or `build.gradle`. No other code changes needed.
Q9What if no patch? (Workaround)
🚧 **No Patch Workaround**: 1. 🗑️ Remove the dependency if not needed. 2. 🚫 Restrict file system permissions (remove read access for the app user). 3.…