Gentoo Archives: gentoo-announce

From: Tim Sammut <underling@g.o>
To: gentoo-announce@g.o
Cc: bugtraq@×××××××××××××.com, full-disclosure@××××××××××××××.uk, security-alerts@×××××××××××××.com
Subject: [gentoo-announce] [ GLSA 201110-10 ] Wget: User-assisted file creation or overwrite
Date: Fri, 14 Oct 2011 00:01:08
Message-Id: 4E97791B.4050302@gentoo.org
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2 Gentoo Linux Security Advisory GLSA 201110-10
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4 http://security.gentoo.org/
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6
7 Severity: Normal
8 Title: Wget: User-assisted file creation or overwrite
9 Date: October 13, 2011
10 Bugs: #329941
11 ID: 201110-10
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14
15 Synopsis
16 ========
17
18 Insecure usage of server provided filenames may allow the creation or
19 overwriting of local files.
20
21 Background
22 ==========
23
24 GNU Wget is a free software package for retrieving files using HTTP,
25 HTTPS and FTP, the most widely-used Internet protocols.
26
27 Affected packages
28 =================
29
30 -------------------------------------------------------------------
31 Package / Vulnerable / Unaffected
32 -------------------------------------------------------------------
33 1 net-misc/wget < 1.12-r2 >= 1.12-r2
34
35 Description
36 ===========
37
38 It was discovered that Wget was unsafely trusting server-provided
39 filenames. This allowed attackers to overwrite or create files on the
40 user's system by sending a redirect from the expected URL to another
41 URL specifying the targeted file.
42
43 Impact
44 ======
45
46 An unauthenticated remote attacker may be able to create or overwrite
47 local files by enticing the user to open an attacker controlled URL,
48 possibly leading to execution of arbitrary code.
49
50 Workaround
51 ==========
52
53 There is no known workaround at this time.
54
55 Resolution
56 ==========
57
58 All Wget users should upgrade to the latest version:
59
60 # emerge --sync
61 # emerge --ask --oneshot --verbose ">=net-misc/wget-1.12-r2"
62
63 NOTE: This is a legacy GLSA. Updates for all affected architectures are
64 available since September 19, 2010. It is likely that your system is
65 already no longer affected by this issue.
66
67 References
68 ==========
69
70 [ 1 ] CVE-2010-2252
71 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2010-2252
72
73 Availability
74 ============
75
76 This GLSA and any updates to it are available for viewing at
77 the Gentoo Security Website:
78
79 http://security.gentoo.org/glsa/glsa-201110-10.xml
80
81 Concerns?
82 =========
83
84 Security is a primary focus of Gentoo Linux and ensuring the
85 confidentiality and security of our users' machines is of utmost
86 importance to us. Any security concerns should be addressed to
87 security@g.o or alternatively, you may file a bug at
88 https://bugs.gentoo.org.
89
90 License
91 =======
92
93 Copyright 2011 Gentoo Foundation, Inc; referenced text
94 belongs to its owner(s).
95
96 The contents of this document are licensed under the
97 Creative Commons - Attribution / Share Alike license.
98
99 http://creativecommons.org/licenses/by-sa/2.5

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