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JVN脆弱性詳細

Prosody および Lightwitch Metronome の plugins/mod_compression.lua におけるサービス運用妨害 (DoS) の脆弱性

Title	Prosody および Lightwitch Metronome の plugins/mod_compression.lua におけるサービス運用妨害 (DoS) の脆弱性
Summary	(1) Prosody および (2) Lightwitch Metronome の plugins/mod_compression.lua は、セッションが認証されていない間、ストリーム圧縮をネゴシエートするため、サービス運用妨害 (リソース消費) 状態にされる脆弱性が存在します。
Possible impacts	第三者により、XMPP ストリームの圧縮された XML 要素を介して、サービス運用妨害 (リソース消費) 状態に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	April 2, 2014, midnight
Registration Date	April 15, 2014, 7:41 p.m.
Last Update	April 15, 2014, 7:41 p.m.

Affected System

The Prosody Team

Prosody 0.9.4 未満

Lightwitch

Metronome IM 3.4 まで

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-2014-2744	http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-2744
National Vulnerability Database (NVD)
2	CVE-2014-2744	http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2014-2744

CWE (共通脆弱性タイプ一覧)

No	Name	URL
JVNDB
1	CWE-20	https://jvndb.jvn.jp/ja/cwe/CWE-20.html

ベンダー情報

No	Name	URL
Lightwitch
1	Metronome IM	http://www.lightwitch.org/metronome
2	mod_compression: address CWE-400, (Fixes #122)	http://code.lightwitch.org/metronome/rev/49f47277a411
The Prosody Team
3	mod_compression: Only allow compression on authenticated streams	http://hg.prosody.im/0.9/rev/b3b1c9da38fb
4	Prosody 0.9.4 released	http://blog.prosody.im/prosody-0-9-4-released/

Change Log

No	Changed Details	Date of change
0	[2014年04月15日] 掲載	Feb. 17, 2018, 10:37 a.m.

NVD Vulnerability Information

CVE-2014-2744

Summary	plugins/mod_compression.lua in (1) Prosody before 0.9.4 and (2) Lightwitch Metronome through 3.4 negotiates stream compression while a session is unauthenticated, which allows remote attackers to cause a denial of service (resource consumption) via compressed XML elements in an XMPP stream, aka an "xmppbomb" attack.
Publication Date	April 11, 2014, 10:55 a.m.
Registration Date	Jan. 26, 2021, 3:09 p.m.
Last Update	Nov. 21, 2024, 11:06 a.m.

Affected software configurations

Configuration1		or higher	or less	more than	less than
cpe:2.3:a:lightwitch:metronome::::::::			3.4

Related information, measures and tools

No	URL	タグ
1	http://blog.prosody.im/prosody-0-9-4-released/	Vendor Advisory
2	http://blog.prosody.im/prosody-0-9-4-released/	Vendor Advisory
3	http://code.lightwitch.org/metronome/rev/49f47277a411	Exploit Patch
4	http://code.lightwitch.org/metronome/rev/49f47277a411	Exploit Patch
5	http://hg.prosody.im/0.9/rev/b3b1c9da38fb	Exploit Patch
6	http://hg.prosody.im/0.9/rev/b3b1c9da38fb	Exploit Patch
7	http://openwall.com/lists/oss-security/2014/04/07/7
8	http://openwall.com/lists/oss-security/2014/04/07/7
9	http://openwall.com/lists/oss-security/2014/04/09/1
10	http://openwall.com/lists/oss-security/2014/04/09/1
11	http://secunia.com/advisories/57710
12	http://secunia.com/advisories/57710
13	http://www.debian.org/security/2014/dsa-2895
14	http://www.debian.org/security/2014/dsa-2895
15	http://xmpp.org/resources/security-notices/uncontrolled-resource-consumption-with-highly-compressed-xmpp-stanzas/
16	http://xmpp.org/resources/security-notices/uncontrolled-resource-consumption-with-highly-compressed-xmpp-stanzas/

Common Vulnerabilities List

No	CWE	Name	URL
1	CWE-20	不適切な入力確認	https://cwe.mitre.org/data/definitions/20.html