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JVN脆弱性詳細

logrotate のデフォルト設定におけるシンボリックリンク攻撃を誘発する脆弱性

Title	logrotate のデフォルト設定におけるシンボリックリンク攻撃を誘発する脆弱性
Summary	logrotate のデフォルト設定は、root 以外の書き込み権限が許可されているディレクトリトリ内でのファイル処理に root 権限を使用するため、シンボリックリンク攻撃およびハードリンク攻撃を誘発する脆弱性が存在します。
Possible impacts	ローカルユーザにより、logrotate が信頼しないディレクトリをサポートしないことを利用されることで、シンボリックリンク攻撃およびハードリンク攻撃を誘発される可能性があります。
Solution	ベンダ情報および参考情報を参照して適切な対策を実施してください。
Publication Date	March 30, 2011, midnight
Registration Date	March 27, 2012, 6:43 p.m.
Last Update	March 27, 2012, 6:43 p.m.

CVSS2.0 : 警告
Score	6.3
Vector	AV:L/AC:M/Au:N/C:N/I:C/A:C

Affected System

Gentoo Linux

logrotate Debian GNU/Linux 版

CVE (情報セキュリティ共通脆弱性識別子)

No	Name	URL
Common Vulnerabilities and Exposures (CVE)
1	CVE-2011-1548	http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-1548
National Vulnerability Database (NVD)
2	CVE-2011-1548	http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2011-1548

CWE (共通脆弱性タイプ一覧)

No	Name	URL
JVNDB
1	CWE-264	https://jvndb.jvn.jp/ja/cwe/CWE-264.html

ベンダー情報

No	Name	URL
gentoo
1	Top Page	http://www.gentoo.org/

Change Log

No	Changed Details	Date of change
0	[2012年03月27日] 掲載	Feb. 17, 2018, 10:37 a.m.

NVD Vulnerability Information

CVE-2011-1548

Summary	The default configuration of logrotate on Debian GNU/Linux uses root privileges to process files in directories that permit non-root write access, which allows local users to conduct symlink and hard link attacks by leveraging logrotate's lack of support for untrusted directories, as demonstrated by /var/log/postgresql/.
Publication Date	March 31, 2011, 7:55 a.m.
Registration Date	Jan. 28, 2021, 4:38 p.m.
Last Update	Nov. 21, 2024, 10:26 a.m.

Affected software configurations

Configuration1		or higher	or less	more than	less than
cpe:2.3:a:gentoo:logrotate::::::::
execution environment
1	cpe:2.3:o:debian:linux::::::::

Related information, measures and tools

No	URL	refsource	タグ
1	http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=606544
2	http://openwall.com/lists/oss-security/2011/03/04/16
3	http://openwall.com/lists/oss-security/2011/03/04/17
4	http://openwall.com/lists/oss-security/2011/03/04/18
5	http://openwall.com/lists/oss-security/2011/03/04/19
6	http://openwall.com/lists/oss-security/2011/03/04/22
7	http://openwall.com/lists/oss-security/2011/03/04/24
8	http://openwall.com/lists/oss-security/2011/03/04/25
9	http://openwall.com/lists/oss-security/2011/03/04/26
10	http://openwall.com/lists/oss-security/2011/03/04/27
11	http://openwall.com/lists/oss-security/2011/03/04/28
12	http://openwall.com/lists/oss-security/2011/03/04/29
13	http://openwall.com/lists/oss-security/2011/03/04/30
14	http://openwall.com/lists/oss-security/2011/03/04/31
15	http://openwall.com/lists/oss-security/2011/03/04/32
16	http://openwall.com/lists/oss-security/2011/03/04/33
17	http://openwall.com/lists/oss-security/2011/03/05/4
18	http://openwall.com/lists/oss-security/2011/03/05/6
19	http://openwall.com/lists/oss-security/2011/03/05/8
20	http://openwall.com/lists/oss-security/2011/03/06/3
21	http://openwall.com/lists/oss-security/2011/03/06/4
22	http://openwall.com/lists/oss-security/2011/03/06/5
23	http://openwall.com/lists/oss-security/2011/03/06/6
24	http://openwall.com/lists/oss-security/2011/03/07/11
25	http://openwall.com/lists/oss-security/2011/03/07/5
26	http://openwall.com/lists/oss-security/2011/03/07/6
27	http://openwall.com/lists/oss-security/2011/03/08/5
28	http://openwall.com/lists/oss-security/2011/03/10/2
29	http://openwall.com/lists/oss-security/2011/03/10/3
30	http://openwall.com/lists/oss-security/2011/03/10/6
31	http://openwall.com/lists/oss-security/2011/03/10/7
32	http://openwall.com/lists/oss-security/2011/03/11/3
33	http://openwall.com/lists/oss-security/2011/03/11/5
34	http://openwall.com/lists/oss-security/2011/03/14/26
35	http://openwall.com/lists/oss-security/2011/03/23/11
36	http://www.securityfocus.com/bid/47167
37	http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=606544
38	http://www.securityfocus.com/bid/47167
39	http://openwall.com/lists/oss-security/2011/03/23/11
40	http://openwall.com/lists/oss-security/2011/03/14/26
41	http://openwall.com/lists/oss-security/2011/03/11/5
42	http://openwall.com/lists/oss-security/2011/03/11/3
43	http://openwall.com/lists/oss-security/2011/03/10/7
44	http://openwall.com/lists/oss-security/2011/03/10/6
45	http://openwall.com/lists/oss-security/2011/03/10/3
46	http://openwall.com/lists/oss-security/2011/03/10/2
47	http://openwall.com/lists/oss-security/2011/03/08/5
48	http://openwall.com/lists/oss-security/2011/03/07/6
49	http://openwall.com/lists/oss-security/2011/03/07/5
50	http://openwall.com/lists/oss-security/2011/03/07/11
51	http://openwall.com/lists/oss-security/2011/03/06/6
52	http://openwall.com/lists/oss-security/2011/03/06/5
53	http://openwall.com/lists/oss-security/2011/03/06/4
54	http://openwall.com/lists/oss-security/2011/03/06/3
55	http://openwall.com/lists/oss-security/2011/03/05/8
56	http://openwall.com/lists/oss-security/2011/03/05/6
57	http://openwall.com/lists/oss-security/2011/03/05/4
58	http://openwall.com/lists/oss-security/2011/03/04/33
59	http://openwall.com/lists/oss-security/2011/03/04/32
60	http://openwall.com/lists/oss-security/2011/03/04/31
61	http://openwall.com/lists/oss-security/2011/03/04/30
62	http://openwall.com/lists/oss-security/2011/03/04/29
63	http://openwall.com/lists/oss-security/2011/03/04/28
64	http://openwall.com/lists/oss-security/2011/03/04/27
65	http://openwall.com/lists/oss-security/2011/03/04/26
66	http://openwall.com/lists/oss-security/2011/03/04/25
67	http://openwall.com/lists/oss-security/2011/03/04/24
68	http://openwall.com/lists/oss-security/2011/03/04/22
69	http://openwall.com/lists/oss-security/2011/03/04/19
70	http://openwall.com/lists/oss-security/2011/03/04/18
71	http://openwall.com/lists/oss-security/2011/03/04/17
72	http://openwall.com/lists/oss-security/2011/03/04/16

Common Vulnerabilities List

No	CWE	Name	URL
1	CWE-264	認可・権限・アクセス制御	https://cwe.mitre.org/data/definitions/264.html