Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CVE-2019-11831
Summary
The PharStreamWrapper (aka phar-stream-wrapper) package 1.x, 2.x before 2.1.1 and 3.x before 3.1.1 for TYPO3 does not prevent directory traversal, which allows attackers to bypass a deserialization protection mechanism, as demonstrated by a phar:///path/bad.phar/../good.phar URL.
- LOW
- NETWORK
- HIGH
- UNCHANGED
- NONE
- NONE
- HIGH
- HIGH
CWE-22 - Path Traversal
Path traversal (or directory traversal), is a vulnerability that allows malicious users to traverse the server's root directory, gaining access to arbitrary files and folders such as application code & data, back-end credentials, and sensitive operating system files. In the worst-case scenario, an attacker could potentially execute arbitrary files on the server, resulting in a denial of service attack. Such an exploit may severely impact the integrity, confidentiality, and availability of an application.
Advisory Timeline
- Published
