[tor-bugs] #17895 [Applications/Tor Browser]: Tor Browser Bundle installer subject to DLL hijacking

Tor Bug Tracker & Wiki blackhole at torproject.org
Thu Apr 21 22:06:15 UTC 2016


#17895: Tor Browser Bundle installer subject to DLL hijacking
-------------------------------------------------+-------------------------
 Reporter:  ericlaw                              |          Owner:  boklm
     Type:  defect                               |         Status:
 Priority:  High                                 |  needs_review
Component:  Applications/Tor Browser             |      Milestone:
 Severity:  Major                                |        Version:
 Keywords:  tbb-gitian, tbb-security,            |     Resolution:
  TorBrowserTeam201604R                          |  Actual Points:
Parent ID:                                       |         Points:
 Reviewer:                                       |        Sponsor:
-------------------------------------------------+-------------------------
Changes (by boklm):

 * status:  assigned => needs_review
 * keywords:  tbb-gitian, tbb-security, TorBrowserTeam201604 => tbb-gitian,
     tbb-security, TorBrowserTeam201604R


Comment:

 Replying to [comment:18 gk]:

 >
 > What we need here is:
 > 1) Cross-compiling NSIS

 The branch bug_17895 in my user repo is doing that:
 https://gitweb.torproject.org/user/boklm/tor-browser-
 bundle.git/commit/?h=bug_17895&id=ed474700d85d135fa1e1bf6ae358a9c781d8dac6

 To fix the build issues, we are using the patches from the Debian package.

 > 2) Making sure the resulting .exe files are still bit-by-bit
 reproducible

 I checked that re-bundling results in the same .exe file. I did not check
 yet that it is also the case after a `make clean-utils`, I will try it
 tomorrow.

 > 3) Making sure that these files are still working on all supported
 Windows versions (XP - 10)
 > 4) Making sure stripping the authenticode signature is still
 reproducible

 I did not check that yet.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/17895#comment:23>
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