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GHSA-9p62-x3c5-hr5p
No affected components available
Summary
MeterSphere allow users to upload file, but not check the file name, may lead to upload file to any path if the file name in upload request is falsified.
Details
Metersphere's FileUtils.java didn't check the filePath.
public static void createFile(String filePath, byte[] fileBytes) {
File file = new File(filePath);
if (file.exists()) {
file.delete();
}
try {
File dir = file.getParentFile();
if (!dir.exists()) {
dir.mkdirs();
}
file.createNewFile();
} catch (Exception e) {
LogUtil.error(e);
}
try (InputStream in = new ByteArrayInputStream(fileBytes); OutputStream out = new FileOutputStream(file)) {
final int MAX = 4096;
byte[] buf = new byte[MAX];
for (int bytesRead = in.read(buf, 0, MAX); bytesRead != -1; bytesRead = in.read(buf, 0, MAX)) {
out.write(buf, 0, bytesRead);
}
} catch (IOException e) {
LogUtil.error(e);
MSException.throwException(Translator.get("upload_fail"));
}
}
Patches
The vulnerability has been fixed in v2.5.1.
https://github.com/metersphere/metersphere/commit/3a890eeeb8a6b0887927c876a73bdb3a99a82138 : add validation for file name.
Workarounds
It is recommended to upgrade the version to v2.5.1.
For more information
If you have any questions or comments about this advisory, please open an issue.
The vulnerability can be exploited over the network without needing physical access. It is easy for an attacker to exploit this vulnerability. An attacker needs basic access or low-level privileges. No user interaction is needed for the attacker to exploit this vulnerability. The vulnerability can affect other systems as well, not just the initial system. There is a low impact on the confidentiality of the information. There is a low impact on the integrity of the data. There is a low impact on the availability of the system.
Exploitation attempts have been detected. Elevated vigilance and prompt remediation are advised.
The exploit probability is very low. The vulnerability is unlikely to be exploited in the next 30 days.
We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.
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