full-disclosure - [FD] CVE-2019-18922; Directory Traversal; Allied Telesis AT-GS950/8 until Firmware AT-S107 V.1.1.3 [1.00.047]

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Date: Thu, 28 Nov 2019 12:01:38 +0000
From: "Sprenger, Nicolas Hendrik" <Nicolas.H.Sprenger@...-bayreuth.de>
To: "fulldisclosure@...lists.org" <fulldisclosure@...lists.org>
Subject: [FD] CVE-2019-18922; Directory Traversal;
 Allied Telesis AT-GS950/8 until Firmware AT-S107 V.1.1.3 [1.00.047]

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CVEID: CVE-2019-18922
NAME OF AFFECTED PRODUCT: Allied Telesis AT-GS950/8 until Firmware AT-S107 V.1.1.3 [1.00.047]
PROBLEM TYPE: Directory Traversal
DESCRIPTION: A Directory Traversal in the Web interface of the Allied Telesis AT-GS950/8 until Firmware AT-S107 V.1.1.3 [1.00.047] allows unauthenticated attackers to read arbitrary system files via a GET request. 
NOTE: This is an End-of-Life product.

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I. VULNERABILITY
- -------------------------
The Allied Telesis AT-GS950/8 Network Switch with Firmware until AT-S107 V.1.1.3 [1.00.047]
is confirmed to have an Directory Traversal Vulnerability.

II. BACKGROUND
- -------------------------
The AT-S107 Firmware is used for Configuration through an Web-Interface.

III. DESCRIPTION
- -------------------------
A GET-Request with the Path http://[IP]/../../../../../../etc/passwd shows the File-Content.

V. BUSINESS IMPACT
- -------------------------
A Attacker can read arbitrary System-Files.

VI. SYSTEMS AFFECTED
- -------------------------
Allied Telesis AT-GS950/8 until Firmware AT-S107 V.1.1.3 [1.00.047].

VII. CREDITS
- -------------------------
The Vulnerability has been discovered by the Security-Team at the University Bayreuth. [N. H. Sprenger, Dr. H. Benda].

VIII. LEGAL NOTICES
- -------------------------
The information contained within this advisory is supplied "as-is" with no 
warranties or guarantees of fitness of use or otherwise.

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