Commit Graph

19889 Commits (469c842fd56ce811d431058714d9c2700a5314f8)

Author SHA1 Message Date
Simon McVittie 469c842fd5 Revert "Tell `git revert` not to follow renames"
This doesn't work prior to git 2.8: `git revert` silently ignores the
option and succeeds. We will have to fix CVE-2016-10026 some other way.

This reverts commit 9cada49ed6.
2016-12-28 21:32:12 +00:00
Simon McVittie c1120bbbe8 Force CGI::FormBuilder->field to scalar context where necessary
CGI::FormBuilder->field has behaviour similar to the CGI.pm misfeature
we avoided in f4ec7b0. Force it into scalar context where it is used
in an argument list.

This prevents two (relatively minor) commit metadata forgery
vulnerabilities:

* In the comments plugin, an attacker who was able to post a comment
  could give it a user-specified author and author-URL even if the wiki
  configuration did not allow for that, by crafting multiple values
  to other fields.
* In the editpage plugin, an attacker who was able to edit a page
  could potentially forge commit authorship by crafting multiple values
  for the rcsinfo field.

The remaining plugins changed in this commit appear to have been
protected by use of explicit scalar prototypes for the called functions,
but have been changed anyway to make them more obviously correct.
In particular, checkpassword() in passwordauth has a known prototype,
so an attacker cannot trick it into treating multiple values of the
name field as being the username, password and field to check for.

OVE-20161226-0001
2016-12-28 21:32:12 +00:00
Simon McVittie e193c75b7d git: do not fail to commit if committer is anonymous 2016-12-28 21:32:12 +00:00
Simon McVittie a67f4d3944 git: don't issue a warning if rcsinfo is undefined
The intention here seems to be that $prev may be undefined, and the
only way that can legitimately happen is for $params{token} to be
undefined too.
2016-12-28 21:32:12 +00:00
Simon McVittie 7c34df633d git_revert test: reinstate ikiwiki.setup, and make it work uninstalled
Previously it was relying on running with an installed ikiwiki
and being able to copy in recentchanges.mdwn and wikiicons/ from the
underlay in /usr. The underlay in ./underlays/basewiki can't be used
(yet) because ikiwiki doesn't allow following symlinks, even from
underlays.

I'd like to make ikiwiki follow symlinks whose destinations can be
verified to be safe (for example making it willing to expose
/usr/share/javascript to the web, but not /etc/passwd), at least from
underlays, but this is security-sensitive so I'm not going to rush
into it.
2016-12-28 21:32:11 +00:00
spalax a9b876e1fa Added a comment 2016-12-26 18:03:28 -04:00
smcv 836f165939 Added a comment 2016-12-26 15:26:25 -04:00
spalax 1a73c8d528 Question about default timezone ":/etc/localtime" 2016-12-25 17:05:08 -04:00
Simon McVittie 28409cd358 Add CVE references for CVE-2016-10026 2016-12-21 13:03:36 +00:00
intrigeri bec3047aff Replied. 2016-12-20 10:26:22 +00:00
Simon McVittie fd6b947889 Announce 3.20161219 2016-12-19 21:20:41 +00:00
Simon McVittie c96149fa3e Release 3.20161219 2016-12-19 20:35:01 +00:00
smcv 7e78712782 mention security contacts here too 2016-12-19 16:33:48 -04:00
Amitai Schleier 952404edaa Opt in to whatever spam this may bring. 2016-12-19 20:23:43 +01:00
Simon McVittie 0fe2ff8579 changelog 2016-12-19 18:21:07 +00:00
intrigeri c1890c116d Make pagestats output more deterministic.
Sort in lexical order the pages that have the same number of hits.
2016-12-19 18:21:07 +00:00
Simon McVittie 592c13cc61 Update changelog 2016-12-19 18:21:07 +00:00
Simon McVittie cde2cc1862 Restrict CSS matches on .header to not affect <tr>
Pandoc generates <tr class="header"> to hold <th> elements, and
we don't want to make those be display: block.

Signed-off-by: Simon McVittie <smcv@debian.org>
2016-12-19 18:21:07 +00:00
Simon McVittie 2a9e9f13f6 List security contacts
We still don't have a security@ alias; listing personal emails is
unfortunately the next-best thing.
2016-12-19 18:21:07 +00:00
Simon McVittie da395ac33c Add a manual test for reverting git commits
Signed-off-by: Simon McVittie <smcv@debian.org>
2016-12-19 18:21:07 +00:00
Simon McVittie 9cada49ed6 Tell `git revert` not to follow renames
Otherwise, we have an authorization bypass vulnerability: rcs_preprevert
looks at what changed in the commit we are reverting, not at what would
result from reverting it now. In particular, if some files were renamed
since the commit we are reverting, a revert of changes that were within
the designated subdirectory and allowed by check_canchange() might now
affect files that are outside the designated subdirectory or disallowed
by check_canchange().

Signed-off-by: Simon McVittie <smcv@debian.org>
2016-12-19 18:21:07 +00:00
smcv 7244b712c1 Added a comment: no, not supported 2016-12-19 13:23:06 -04:00
smcv 32493312c8 rename bugs/img_tag_should_support_relative_size.mdwn to todo/img_tag_should_support_relative_size.mdwn 2016-12-19 12:46:46 -04:00
smcv 8395e43099 Not possible as stated, but could be adapted into a valid feature request 2016-12-19 12:46:22 -04:00
smcv 7d35dc88f3 2016-12-19 09:55:58 -04:00
Simon McVittie b0b1428e62 cgitemplate: actually remove dead code
Signed-off-by: Simon McVittie <smcv@debian.org>
2016-12-19 13:20:55 +00:00
Simon McVittie bc89021523 cgitemplate: remove dead code
blipvert points out in [[bugs/use of $topurl in cgitemplate]] that this
variable has not been used since commit a052771
"Now that we're always using HTML5, <base href> can be relative".

Signed-off-by: Simon McVittie <smcv@debian.org>
2016-12-19 12:00:34 +00:00
intrigeri 706bf876ea Report authorization bypass via RCS revert. 2016-12-17 11:11:44 +00:00
blipvert@b874dc05477cdc0dc8c9c8d9bbe2e39240253a85 bd46db3fb9 2016-12-14 19:07:00 -04:00
blipvert@b874dc05477cdc0dc8c9c8d9bbe2e39240253a85 85c1fa60b8 2016-12-14 19:06:05 -04:00
blipvert@b874dc05477cdc0dc8c9c8d9bbe2e39240253a85 bd6a4567fd 2016-12-14 19:04:05 -04:00
jeff+ikiwiki@b5854f0ab9935492e3dfefa98419b6530c92b049 9b0e02394b 2016-11-26 23:44:42 -04:00
intrigeri 2e865043d6 pagestats determinism: report bug + patch. 2016-11-20 07:00:20 +00:00
svetlana@192500fb6a2e2ef8e78d1a08cca64b1bca9833b9 021ae7050a svetlana.nfshost 2016-11-17 07:42:50 -04:00
Juego 3a36009158 Added custom solution 2016-11-16 18:17:48 -04:00
Juego 99e0945732 rename forum/FastCGI_problem_on_Arch.mdwn to forum/__91__Solved__93__FastCGI_problem_on_Arch.mdwn 2016-11-16 18:15:14 -04:00
Amitai Schleier 8e2e61836e Update my personal site URL. 2016-11-12 22:02:58 -05:00
james@2468840dc8f314e837e1fde99a5fb1b884fa993a aeb85c9d82 update my site links. 2016-11-12 20:08:40 -04:00
openmedi 7370816738 Added a comment 2016-11-10 13:09:41 -04:00
openmedi 24573d396f Added a comment 2016-11-10 13:06:23 -04:00
openmedi f7a5c57157 2016-11-10 13:03:00 -04:00
openmedi 4eb8f49209 Added a comment 2016-11-06 15:36:24 -04:00
openmedi 08a500cbb7 Added a comment 2016-11-03 18:13:15 -04:00
vegardv@75ae889e836bda8ce69bc038d8335c398a2f6f40 536f07d9ff 2016-11-03 08:42:03 -04:00
vegardv@75ae889e836bda8ce69bc038d8335c398a2f6f40 2f922120a1 2016-11-03 08:37:19 -04:00
https://id.koumbit.net/anarcat 705ad6d9d7 consider portier as a successor to OpenID? 2016-11-01 11:56:18 -04:00
https://id.koumbit.net/anarcat 1e6faf00b1 introduce portier here as well, while i'm here 2016-11-01 11:55:46 -04:00
https://id.koumbit.net/anarcat 596f723bb3 nextgen persona? 2016-11-01 11:49:48 -04:00
https://id.koumbit.net/anarcat e7cd4ac40b another look at bootstrap and packaging strategies 2016-11-01 11:45:31 -04:00
Amitai Schleier 7d48b885c9 The C2 wiki appears to have moved. 2016-10-23 21:00:36 -04:00