Gentoo Archives: gentoo-announce

From: Kurt Lieber <klieber@g.o>
To: gentoo-announce@l.g.o
Cc: bugtraq@×××××××××××××.com, full-disclosure@××××××××××××.com, security-alerts@×××××××××××××.com
Subject: [gentoo-announce] [ GLSA 200407-09 ] MoinMoin: Group ACL bypass
Date: Sun, 11 Jul 2004 13:35:11
Message-Id: 20040711133336.GZ18023@mail.lieber.org
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2 Gentoo Linux Security Advisory GLSA 200407-09
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4 http://security.gentoo.org/
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6
7 Severity: Normal
8 Title: MoinMoin: Group ACL bypass
9 Date: July 11, 2004
10 Bugs: #53126
11 ID: 200407-09
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14
15 Synopsis
16 ========
17
18 MoinMoin contains a bug allowing a user to bypass group ACLs (Access
19 Control Lists).
20
21 Background
22 ==========
23
24 MoinMoin is a Python clone of WikiWiki, based on PikiPiki.
25
26 Affected packages
27 =================
28
29 -------------------------------------------------------------------
30 Package / Vulnerable / Unaffected
31 -------------------------------------------------------------------
32 1 net-www/moinmoin <= 1.2.1 >= 1.2.2
33
34 Description
35 ===========
36
37 MoinMoin contains a bug in the code handling administrative group ACLs.
38 A user created with the same name as an administrative group gains the
39 privileges of the administrative group.
40
41 Impact
42 ======
43
44 If an administrative group called AdminGroup existed an attacker could
45 create a user called AdminGroup and gain the privileges of the group
46 AdminGroup. This could lead to unauthorized users gaining
47 administrative access.
48
49 Workaround
50 ==========
51
52 For every administrative group with special privileges create a user
53 with the same name as the group.
54
55 Resolution
56 ==========
57
58 All users should upgrade to the latest available version of MoinMoin,
59 as follows:
60
61 # emerge sync
62
63 # emerge -pv ">=net-ww/moinmoin-1.2.2"
64 # emerge ">=net-ww/moinmoin-1.2.2"
65
66 References
67 ==========
68
69 [ 1 ] MoinMoin Announcement
70 http://sourceforge.net/tracker/index.php?func=detail&aid=948103&group_id=8482&atid=108482
71 [ 2 ] OSVDB Entry
72 http://www.osvdb.org/6704
73
74 Availability
75 ============
76
77 This GLSA and any updates to it are available for viewing at
78 the Gentoo Security Website:
79
80 http://security.gentoo.org/glsa/glsa-200407-09.xml
81
82 Concerns?
83 =========
84
85 Security is a primary focus of Gentoo Linux and ensuring the
86 confidentiality and security of our users machines is of utmost
87 importance to us. Any security concerns should be addressed to
88 security@g.o or alternatively, you may file a bug at
89 http://bugs.gentoo.org.
90
91 License
92 =======
93
94 Copyright 2004 Gentoo Foundation, Inc; referenced text
95 belongs to its owner(s).
96
97 The contents of this document are licensed under the
98 Creative Commons - Attribution / Share Alike license.
99
100 http://creativecommons.org/licenses/by-sa/1.0