neunero.blogg.se - Macdown 0.7.2d137

MACDOWN 0.7.2D137 PDF

For instance US-ASCII space character would be represented with %20. Special characters are represented using a percentage character followed by two digits representing the octet code of the original character (%HEX-CODE).

An URL may contain special character that need special syntax handling in order to be interpreted. An attacker can take advantage of the multiple way of encoding an URL and abuse the interpretation of the URL. This attack targets the encoding of the URL combined with the encoding of the slash characters.

Using Slashes and URL Encoding Combined to Bypass Validation Logic.

In a worst case scenario, these programs are combined with other propagation logic and work as a virus. Once the attack is executed, the attackers' program can access relative directories such as C:\Program Files or other standard system directories to launch further attacks. When the attacker knows the standard handling routines and can identify vulnerabilities and entry points they can be exploited by otherwise seemingly normal content. Vulnerabilities of this type have been found in a wide variety of commercial applications from Microsoft Office to Adobe Acrobat and Apple Safari web browser. The attacker exploits known vulnerabilities or handling routines in the target processes.

MACDOWN 0.7.2D137 PDF

The files are poisoned with a malicious payload (targeting the file systems accessible by the target software) by the attacker and may be passed through standard channels such as via email, and standard web content like PDF and multimedia files. An attack of this type exploits the host's trust in executing remote content including binary files.