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JVN脆弱性詳細

nginx の http/ngx_http_parse.c におけるサービス運用妨害 (DoS) の脆弱性

Title	nginx の http/ngx_http_parse.c におけるサービス運用妨害 (DoS) の脆弱性
Summary	nginx の http/ngx_http_parse.c 内の ngx_http_parse_chunked 関数には、サービス運用妨害 (クラッシュ) 状態にされる、および任意のコードを実行される脆弱性が存在します。
Possible impacts	第三者により、過度に大きいチャンクサイズのチャンク転送エンコーディング (chunked Transfer-Encoding) リクエストを介して、整数符号エラーおよびスタックベースのバッファオーバーフローを誘発されることで、サービス運用妨害 (クラッシュ) 状態にされる、および任意のコードを実行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	May 7, 2013, midnight
Registration Date	July 23, 2013, 2:39 p.m.
Last Update	Nov. 12, 2013, 4:44 p.m.

CVSS2.0 : 危険
Score	7.5
Vector	AV:N/AC:L/Au:N/C:P/I:P/A:P

Affected System

Igor Sysoev

nginx 1.3.9 から 1.4.0

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-2013-2028	http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-2028
National Vulnerability Database (NVD)
2	CVE-2013-2028	http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2013-2028
[nginx-announce] nginx security advisory
3	CVE-2013-2028	http://mailman.nginx.org/pipermail/nginx-announce/2013/000112.html

CWE (共通脆弱性タイプ一覧)

No	Name	URL
JVNDB
1	CWE-189	https://jvndb.jvn.jp/ja/cwe/CWE-189.html

ベンダー情報

No	Name	URL
Gentoo Linux Security Advisory
1	GLSA 201310-04	http://www.gentoo.org/security/en/glsa/glsa-201310-04.xml
Igor Sysoev
2	Top Page	http://nginx.org/ja/

Change Log

No	Changed Details	Date of change
0	[2013年07月23日] 掲載 [2013年11月12日] ベンダ情報：Gentoo Linux (GLSA 201310-04) を追加	Feb. 17, 2018, 10:37 a.m.

NVD Vulnerability Information

CVE-2013-2028

Summary	The ngx_http_parse_chunked function in http/ngx_http_parse.c in nginx 1.3.9 through 1.4.0 allows remote attackers to cause a denial of service (crash) and execute arbitrary code via a chunked Transfer-Encoding request with a large chunk size, which triggers an integer signedness error and a stack-based buffer overflow.
Publication Date	July 20, 2013, 12:37 p.m.
Registration Date	Jan. 26, 2021, 3:37 p.m.
Last Update	Nov. 21, 2024, 10:50 a.m.

Affected software configurations

Configuration1		or higher	or less	more than	less than
cpe:2.3:a:f5:nginx::::::::		1.3.9	1.4.0

Configuration2		or higher	or less	more than	less than
cpe:2.3:o:fedoraproject:fedora:19:::::::*

Related information, measures and tools

No	URL	タグ
1	http://lists.fedoraproject.org/pipermail/package-announce/2013-May/105176.html	Third Party Advisory
2	http://lists.fedoraproject.org/pipermail/package-announce/2013-May/105176.html	Third Party Advisory
3	http://mailman.nginx.org/pipermail/nginx-announce/2013/000112.html	Mitigation Patch Vendor Advisory
4	http://mailman.nginx.org/pipermail/nginx-announce/2013/000112.html	Mitigation Patch Vendor Advisory
5	http://nginx.org/download/patch.2013.chunked.txt	Patch Vendor Advisory
6	http://nginx.org/download/patch.2013.chunked.txt	Patch Vendor Advisory
7	http://packetstormsecurity.com/files/121675/Nginx-1.3.9-1.4.0-Denial-Of-Service.html	Exploit Third Party Advisory VDB Entry
8	http://packetstormsecurity.com/files/121675/Nginx-1.3.9-1.4.0-Denial-Of-Service.html	Exploit Third Party Advisory VDB Entry
9	http://secunia.com/advisories/55181	Third Party Advisory
10	http://secunia.com/advisories/55181	Third Party Advisory
11	http://security.gentoo.org/glsa/glsa-201310-04.xml	Third Party Advisory
12	http://security.gentoo.org/glsa/glsa-201310-04.xml	Third Party Advisory
13	http://www.osvdb.org/93037	Broken Link
14	http://www.osvdb.org/93037	Broken Link
15	http://www.securityfocus.com/bid/59699	Third Party Advisory VDB Entry
16	http://www.securityfocus.com/bid/59699	Third Party Advisory VDB Entry
17	http://www.vnsecurity.net/2013/05/analysis-of-nginx-cve-2013-2028/	Broken Link
18	http://www.vnsecurity.net/2013/05/analysis-of-nginx-cve-2013-2028/	Broken Link
19	https://github.com/rapid7/metasploit-framework/pull/1834	Patch Third Party Advisory
20	https://github.com/rapid7/metasploit-framework/pull/1834	Patch Third Party Advisory

Common Vulnerabilities List

No	CWE	Name	URL
1	CWE-787	境界外書き込み	https://cwe.mitre.org/data/definitions/787.html