漏洞信息
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Vulnerability Title
Apache Ant: Path traversal in ftp and scp tasks allows arbitrary file write
Vulnerability Description
The ftp and scp tasks of Apache Ant can download files from a remote server. A malicious server can provide relative paths that allow it to write outside of the dedicated target directory for the download, making it possible to overwrite files of the attacker's choice using the permissions of the user running Ant in versions prior to Ant 1.10.18.
In order to exploit this vulnerability, the server would either have to be malicious or be subject to a machine-in-the-middle attack. Additionally in the case of scp or the ftp task using ftps the server must pass the server identity checks performed by the tasks.
For ftp tasks not using ftps a malicious server could act as a machine-in-the-middle to provide malicious files.
Starting with Ant 1.10.18 both tasks will prevent writing outside of the destination directory by default. An option is available to disable this behavior in the unlikely case that the old behavior is required by existing build files.
Mitigations:
Users of scp and ftp (when using ftps) in any version of Ant should not bypass server identity checks. Users of ftp not using ftps should switch to ftps where possible.
All users are recommended to upgrade to Apache Ant 1.10.18, which fixes this issue.
CVSS Information
N/A
Vulnerability Type
相对路径遍历
Vulnerability Title
Apache Ant 路径遍历漏洞
Vulnerability Description
Apache Ant是美国Apache基金会的一款自动化构建工具。 Apache Ant 1.10.18之前版本存在路径遍历漏洞,该漏洞源于ftp和scp任务下载文件时路径处理不当,恶意服务器可通过相对路径将文件写入专用目标目录之外,从而覆盖攻击者选择的文件。
CVSS Information
N/A
Vulnerability Type
N/A