[Author Prev][Author Next][Thread Prev][Thread Next][Author Index][Thread Index]

[tor-bugs] #31890 [Circumvention/meek]: Redeploy meek-server instances using Go 1.12.10+ / 1.13.1+

#31890: Redeploy meek-server instances using Go 1.12.10+ / 1.13.1+
------------------------------------+--------------------
     Reporter:  dcf                 |      Owner:  (none)
         Type:  task                |     Status:  new
     Priority:  High                |  Milestone:
    Component:  Circumvention/meek  |    Version:
     Severity:  Normal              |   Keywords:
Actual Points:                      |  Parent ID:
       Points:                      |   Reviewer:
      Sponsor:                      |
------------------------------------+--------------------
 https://groups.google.com/d/msg/golang-announce/cszieYyuL9Q/g4Z7pKaqAgAJ
 > We have just released Go 1.13.1 and Go 1.12.10 to address a recently
 reported security issue. We recommend that all affected users update to
 one of these releases (if you’re not sure which, choose Go 1.13.1).
 >
 > net/http (through net/textproto) used to accept and normalize invalid
 HTTP/1.1 headers with a space before the colon, in violation of RFC 7230.
 If a Go server is used behind an uncommon reverse proxy that accepts and
 forwards but doesn't normalize such invalid headers, the reverse proxy and
 the server can interpret the headers differently. This can lead to filter
 bypasses or [https://portswigger.net/blog/http-desync-attacks-request-
 smuggling-reborn request smuggling], the latter if requests from separate
 clients are multiplexed onto the same upstream connection by the proxy.
 Such invalid headers are now rejected by Go servers, and passed without
 normalization to Go client applications.
 >
 > The issue is CVE-2019-16276 and Go issue https://golang.org/issue/34540.

 We need to redeploy the following servers:
  * cymrubridge02 (backend for meek-azure, run by inf0)
  * BridgeDB Moat (run by phw)
  * starman (throttled meek.bamsoftware.com, run by dcf)
  * maenad (unthrottled meek.bamsoftware.com, run by dcf)
  * GAEuploader (gaeuploader.meek.bamsoftware.com, run by dcf)

 The Moat configuration uses a reverse proxy, so this is perhaps relevant
 to us.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/31890>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online

_______________________________________________
tor-bugs mailing list
tor-bugs@xxxxxxxxxxxxxxxxxxxx
https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-bugs