製品・ソフトウェアに関する情報

JVN脆弱性詳細

lighttpd における権限を取得される脆弱性

Title	lighttpd における権限を取得される脆弱性
Summary	lighttpd は、(1) setuid、(2) setgid、または (3) setgroups 関数の戻り値をチェックしないため、再起動された場合に lighttpd が root として実行される原因となり、権限を取得される脆弱性が存在します。
Possible impacts	第三者により、権限を取得される可能性があります。
Solution	ベンダより正式な対策が公開されています。ベンダ情報を参照して適切な対策を実施してください。
Publication Date	Nov. 13, 2013, midnight
Registration Date	Nov. 21, 2013, 4:07 p.m.
Last Update	Nov. 21, 2013, 4:07 p.m.

Affected System

Debian

Debian GNU/Linux 6.0

Debian GNU/Linux 7.0

Debian GNU/Linux 7.1

LIGHTTPD

lighttpd 1.4.33 未満

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-2013-4559	http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-4559
National Vulnerability Database (NVD)
2	CVE-2013-4559	http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2013-4559

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
Debian Security Advisory
1	DSA-2795	http://lists.debian.org/debian-security-announce/2013/msg00207.html
Lighttpd
2	setuid/setgid/setgroups return values not checked	http://download.lighttpd.net/lighttpd/security/lighttpd_sa_2013_02.txt

Change Log

No	Changed Details	Date of change
0	[2013年11月21日] 掲載	Feb. 17, 2018, 10:37 a.m.

NVD Vulnerability Information

CVE-2013-4559

Summary	lighttpd before 1.4.33 does not check the return value of the (1) setuid, (2) setgid, or (3) setgroups functions, which might cause lighttpd to run as root if it is restarted and allows remote attackers to gain privileges, as demonstrated by multiple calls to the clone function that cause setuid to fail when the user process limit is reached.
Publication Date	Nov. 20, 2013, 11:12 p.m.
Registration Date	Jan. 26, 2021, 3:43 p.m.
Last Update	Nov. 21, 2024, 10:55 a.m.

Affected software configurations

Configuration1		or higher	or less	more than	less than
cpe:2.3:a:lighttpd:lighttpd::::::::					1.4.33

Related information, measures and tools

No	URL	タグ
1	http://download.lighttpd.net/lighttpd/security/lighttpd_sa_2013_02.txt	Vendor Advisory
2	http://download.lighttpd.net/lighttpd/security/lighttpd_sa_2013_02.txt	Vendor Advisory
3	http://jvn.jp/en/jp/JVN37417423/index.html	Third Party Advisory
4	http://jvn.jp/en/jp/JVN37417423/index.html	Third Party Advisory
5	http://lists.opensuse.org/opensuse-updates/2014-01/msg00049.html	Mailing List Third Party Advisory
6	http://lists.opensuse.org/opensuse-updates/2014-01/msg00049.html	Mailing List Third Party Advisory
7	http://marc.info/?l=bugtraq&m=141576815022399&w=2	Issue Tracking Third Party Advisory
8	http://marc.info/?l=bugtraq&m=141576815022399&w=2	Issue Tracking Third Party Advisory
9	http://secunia.com/advisories/55682	Third Party Advisory
10	http://secunia.com/advisories/55682	Third Party Advisory
11	http://www.openwall.com/lists/oss-security/2013/11/12/4	Mailing List Third Party Advisory
12	http://www.openwall.com/lists/oss-security/2013/11/12/4	Mailing List Third Party Advisory
13	https://kc.mcafee.com/corporate/index?page=content&id=SB10310	Third Party Advisory
14	https://kc.mcafee.com/corporate/index?page=content&id=SB10310	Third Party Advisory
15	https://www.debian.org/security/2013/dsa-2795	Third Party Advisory
16	https://www.debian.org/security/2013/dsa-2795	Third Party Advisory

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