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Vulnerability of Rack CORS Middleware: directory traversal

Synthesis of the vulnerability 

An attacker can traverse directories of Rack CORS Middleware, in order to read a file outside the service root path.
Vulnerable products: Debian.
Severity of this weakness: 3/4.
Creation date: 06/02/2020.
Références of this bulletin: CVE-2019-18978, DLA-2096-1, VIGILANCE-VUL-31530.

Description of the vulnerability 

An attacker can traverse directories of Rack CORS Middleware, in order to read a...
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This security announce impacts software or systems such as Debian.

Our Vigil@nce team determined that the severity of this threat is important.

The trust level is of type confirmed by the editor, with an origin of intranet client.

An attacker with a expert ability can exploit this computer vulnerability announce.

Solutions for this threat 

Patches for this vulnerability are not yet public.
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