FreshPorts - VuXML

Jan Minar reports that there exists multiple vulnerabilities in wget:

Wget erroneously thinks that the current directory is a fair game, and will happily write in any file in and below it. Malicious HTTP response or malicious HTML file can redirect wget to a file that is vital to the system, and wget will create/append/overwrite it.

Wget apparently has at least two methods of ``sanitizing'' the potentially malicious data it receives from the HTTP stream, therefore a malicious redirects can pass the check. We haven't find a way to trick wget into writing above the parent directory, which doesn't mean it's not possible.

Malicious HTTP response can overwrite parts of the terminal so that the user will not notice anything wrong, or will believe the error was not fatal.

< 1.10.a1

ge 0

Antti Levomäki, Christian Jalio, Joonas Pihlaja:

Wget contains two vulnerabilities, a stack overflow and a heap overflow, in the handling of HTTP chunked encoding. By convincing a user to download a specific link over HTTP, an attacker may be able to execute arbitrary code with the privileges of the user.

< 1.19.2

Dawid Golunski reports:

GNU wget in version 1.17 and earlier, when used in mirroring/recursive mode, is affected by a Race Condition vulnerability that might allow remote attackers to bypass intended wget access list restrictions specified with -A parameter.

le 1.17

Giuseppe Scrivano reports:

On a server redirect from HTTP to a FTP resource, wget would trust the HTTP server and uses the name in the redirected URL as the destination filename.

< 1.18

Harry Sintonen of F-Secure Corporation reports:

GNU Wget is susceptible to a malicious web server injecting arbitrary cookies to the cookie jar file.

< 1.19.5

Gynvael Coldwind reports:

set_file_metadata in xattr.c in GNU Wget before 1.20.1 stores a file's origin URL in the user.xdg.origin.url metadata attribute of the extended attributes of the downloaded file, which allows local users to obtain sensitive information (e.g., credentials contained in the URL) by reading this attribute, as demonstrated by getfattr. This also applies to Referer information in the user.xdg.referrer.url metadata attribute.

ge 1.19 lt 1.20.1

GNU Wget version 1.12 and earlier uses a server-provided filename instead of the original URL to determine the destination filename of a download, which allows remote servers to create or overwrite arbitrary files via a 3xx redirect to a URL with a .wgetrc filename followed by a 3xx redirect to a URL with a crafted filename, and possibly execute arbitrary code as a consequence of writing to a dotfile in a home directory.

le 1.12_1

Antti Levomäki, Christian Jalio, Joonas Pihlaja:

Wget contains two vulnerabilities, a stack overflow and a heap overflow, in the handling of HTTP chunked encoding. By convincing a user to download a specific link over HTTP, an attacker may be able to execute arbitrary code with the privileges of the user.

< 1.19.2

MITRE reports:

Absolute path traversal vulnerability in GNU Wget before 1.16, when recursion is enabled, allows remote FTP servers to write to arbitrary files, and consequently execute arbitrary code, via a LIST response that references the same filename within two entries, one of which indicates that the filename is for a symlink.

< 1.16