CVE-2024-56509
changedetection.io Vulnerable to Improper Input Validation Leading to LFR/Path Traversal
描述
### Summary Improper input validation in the application can allow attackers to perform local file read (LFR) or path traversal attacks. These vulnerabilities occur when user input is used to construct file paths without adequate sanitization or validation. For example, using `file:../../../etc/passwd` or `file: ///etc/passwd` can bypass weak validations and allow unauthorized access to sensitive files. Even though this has been addressed in previous patch, it is still insufficient. ### Details The check in this line of code is insufficient. ``` if re.search(r'^file:/', url.strip(), re.IGNORECASE): ``` The attacker can still bypass this by using: -`file:../../../../etc/passwd` -`file: ///etc/passwd` (with space before /) ### PoC - Open up a changedetection.io instance with a webdriver configured. - Create a new watch with `file:../../../../etc/passwd`. - Check the watch preview. - The contents of `/etc/passwd` should pop out. ### Screenshots  
如何修補 CVE-2024-56509
要修補 CVE-2024-56509,請將受影響套件升級到下列已修補版本。
- —升級至 0.48.05 或更新版本
- —升級至 0.48.05 或更新版本
CVE-2024-56509 正在被利用嗎?
低 — EPSS 為 0.7%,目前沒有觀察到大規模利用活動。
受影響套件(2)
- from 0, < 0.48.05
- from 0, < 0.48.05