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So cookies with __Host-prefix are only sent back to exact that host, not to a parent domain. And: Both types can't be created or overwritten via http connections. That's the most important property. Conclusion: If you use your own cookie names, a hacker is able to overwrite that cookie via a hacker-initiated http connection.

14.12.2020 · Nextcloud __Host-Prefix . Oggy1. Diese Anleitung bezieht sich auf einen Proxmox Container mit Ubuntu 20.04 und Nextcloud 20.0.3, natürlich ohne Gewähr. Dies funktioniert auch nur dann, wenn der Ordner html leer ist, dazu muss möglicher Inhalt gelöscht werden, der einen Dateikonflikt verursachen kann.

09.11.2020 · This feature adds a set of restrictions upon the names which may be used for cookies with specific properties. These restrictions enable user agents to smuggle cookie state to the server within the confines of the existing "Cookie" request header syntax, and limits the ways in which cookies may be abused. In a nutshell: `__Secure-*` cookies have to have the `Secure` …

Apr 27, 2018 · _host prefix is just not possible when having Nextcloud in a sub directory. About preferred or not, there were quite some discussions about this (just search for A+, scan.nextcloud.com etc) and some claim that using a sub directory is actually more secure.

09.02.2017 · The __Host-prefix does the same as the __Secure-prefix and more. A __Host--prefixed cookie is only accessible by the same domain it is set on. This means that a subdomain can no longer overwrite the cookie value. Implementation. To use cookie prefixes, simply rename the cookies and include the prefix in front.

The __Host prefix mitigates cookie injection vulnerabilities within potential third-party software sharing the same second level domain.

Security Scan: __Host-Prefix. Okay … I had an alias in my apache2 configuration due an migration from the past …

Security: __Host-Prefix cookie setting? & HTTP headers. Hello, I’ve looked at following threads but can’t seem to find the configuration file (nextcloud.conf) or the way to remove this from my record. I’m using version 14 and currently testing before using the system in production. Second question is changing the HTTP header:

Jun 10, 2020 · A solution to this should ideally be found. __Host-Prefix. The __Host prefix mitigates cookie injection vulnerabilities within potential third-party software sharing the same second level domain. It is an additional hardening on top of 'normal' same-site cookies.

10.06.2020 · The __Host prefix mitigates cookie injection vulnerabilities within potential third-party software sharing the same second level domain. It is an additional hardening on top of 'normal' same-site cookies. The text was updated successfully, but …

__Host- prefix: Cookies with names starting with __Host- must be set with the secure flag, must be from a secure page (HTTPS), must not have ...

Feb 09, 2017 · The __Host-prefix does the same as the __Secure-prefix and more. A __Host--prefixed cookie is only accessible by the same domain it is set on. This means that a subdomain can no longer overwrite the cookie value. Implementation. To use cookie prefixes, simply rename the cookies and include the prefix in front. If the cookie was previously named Bastogne, rename it to __Host-Bastogne. If the cookie is set by the framework, look up how to rename the session cookie of that framework.

Both versions require https to be created. So the cookie must have the Secure attribute, a site loaded via https is required. __Host- includes ...

A solution to this should ideally be found. ... The __Host prefix mitigates cookie injection vulnerabilities within potential third-party software ...

27.04.2018 · but was failing the __Host-Prefix check. I don’t understand why - looking at the cookies in the Firefox console, with or without the above change, I’m sent cookies with __Host-nc_sameSiteCookielax and __Host-nc_sameSiteCookiestrict with domain set to mycloud.example.com and path set to /.

Two prefixes are available: __Host-If a cookie name has this prefix, it's accepted in a Set-Cookie header only if it's also marked with the Secure attribute, was sent from a secure origin, does not include a Domain attribute, and has the Path attribute set to /. This way, these cookies can be seen as "domain-locked". __Secure-

The __Host- prefix was created to solve a number of security problems associated with cookies and should always be used over the domain attribute. Leaving the domain attribute blank is actually more secure because then your cookie will be sent back only to the same host that set the cookie. This is called the host-only flag in RFC6265: If the ...

__Host- , which signals to the browser that both the Path=/ and Secure attributes are required, and at the same time, that the Domain attribute must not be ...

The __Host- prefix was created to solve a number of security problems associated with cookies and should always be used over the domain attribute. Leaving the domain attribute blank is actually more secure because then your cookie will be sent back only to the same host that set the cookie. This is called the host-only flag in RFC6265:

The "__Host-" prefix If a cookie's name begins with "__Host-", the cookie MUST be: 1. Set with a "Secure" attribute 2. Set from a URI whose "scheme" is considered "secure" by the user agent. 3. Sent only to the host which set the cookie.

The __Host- prefix does the same as the __Secure- prefix and more. A __Host- -prefixed cookie is only accessible by the same domain it is ...

__Secure-prefix: Cookies with names starting with __Secure-(dash is part of the prefix) must be set with the secure flag from a secure page (HTTPS). __Host- prefix : Cookies with names starting with __Host- must be set with the secure flag, must be from a secure page (HTTPS), must not have a domain specified (and therefore, are not sent to subdomains), and the path must be / .