Full Disclosure mailing list archives
Re: Google vulnerabilities with PoC
From: "Nicholas Lemonias." <lem.nikolas () googlemail com>
Date: Thu, 13 Mar 2014 20:00:18 +0000
Hello Zalewski, The YouTube service is there to serve harmless media files. The upload functionality is there to upload files legitimately. But what type of files, and who can write those files? What's the difference between a Youtube admin and a Youtube user in terms of permissions sets ? Why does Youtube accepts only a certain type of media-files? Isn't it because that's the scope of its function .... ? A good point made, however based on recognised practise and core principles of Information Security and not just 'experience' or personal belief, once the information security flow of a design is tampered - that constitutes to a security issue. Second point - a security vulnerability is present when the confidentiality, integrity and availability of data is affected. In this case the integrity of the service is impacted. On Thu, Mar 13, 2014 at 5:28 PM, Michal Zalewski <lcamtuf () coredump cx>wrote:
The only reasonable way to 'exploit' the bug is using youtube as a "personal storage" uploading non-video files to your own profile: sowhat? That would require a way to retrieve the stored data, which - as I understand - isn't possible here (although the report seems a bit hard-to-parse). From what I recall, you can just upload a blob of data and essentially see it disappear. We do have quite a few services where you can legitimately upload and share nearly-arbitrary content, though. Google Drive is a good example. /mz _______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.grok.org.uk/full-disclosure-charter.html Hosted and sponsored by Secunia - http://secunia.com/
_______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.grok.org.uk/full-disclosure-charter.html Hosted and sponsored by Secunia - http://secunia.com/
Current thread:
- Re: Google vulnerabilities with PoC, (continued)
- Re: Google vulnerabilities with PoC antisnatchor (Mar 13)
- Re: Google vulnerabilities with PoC Michal Zalewski (Mar 13)
- Re: Google vulnerabilities with PoC Brandon Perry (Mar 13)
- Re: Google vulnerabilities with PoC Michal Zalewski (Mar 13)
- Re: Google vulnerabilities with PoC Źmicier Januszkiewicz (Mar 13)
- Re: Google vulnerabilities with PoC Brandon Perry (Mar 13)
- Re: Google vulnerabilities with PoC andfarm (Mar 13)
- Re: Google vulnerabilities with PoC Hugh Davenport (Mar 13)
- Re: Google vulnerabilities with PoC Michal Zalewski (Mar 13)
- Re: Google vulnerabilities with PoC J. Tozo (Mar 13)
- Re: Google vulnerabilities with PoC antisnatchor (Mar 13)
- Re: Google vulnerabilities with PoC Nicholas Lemonias. (Mar 13)
- Re: Google vulnerabilities with PoC Nicholas Lemonias. (Mar 13)
- Re: Google vulnerabilities with PoC Nicholas Lemonias. (Mar 13)
- Re: Google vulnerabilities with PoC Nicholas Lemonias. (Mar 13)
- Re: Google vulnerabilities with PoC Julius Kivimäki (Mar 13)
- Re: Google vulnerabilities with PoC Nicholas Lemonias. (Mar 13)
- Re: Google vulnerabilities with PoC Julius Kivimäki (Mar 13)
- Message not available
- Re: Google vulnerabilities with PoC Nicholas Lemonias. (Mar 13)
- Re: Google vulnerabilities with PoC Julius Kivimäki (Mar 13)
- Message not available
- Fwd: Google vulnerabilities with PoC Nicholas Lemonias. (Mar 13)
- Re: Google vulnerabilities with PoC Julius Kivimäki (Mar 14)