NVD Vulnerability Detail

CVE-2015-2077

Summary	The SDK for Komodia Redirector with SSL Digestor, as used in Lavasoft Ad-Aware Web Companion 1.1.885.1766 and Ad-Aware AdBlocker (alpha) 1.3.69.1, Qustodio for Windows, Atom Security, Inc. StaffCop 5.8, and other products, uses the same X.509 certificate private key for a root CA certificate across different customers' installations, which makes it easier for man-in-the-middle attackers to spoof SSL servers by leveraging knowledge of this key, as originally reported for Superfish VisualDiscovery on certain Lenovo Notebook laptop products.
Publication Date	Feb. 25, 2015, 8:59 a.m.
Registration Date	Jan. 26, 2021, 2:47 p.m.
Last Update	Nov. 21, 2024, 11:26 a.m.

CVSS2.0 : MEDIUM
Score	5.0
Vector	AV:N/AC:L/Au:N/C:P/I:N/A:N
攻撃元区分(AV)	ネットワーク
攻撃条件の複雑さ(AC)	低
攻撃前の認証要否(Au)	不要
機密性への影響(C)	低
完全性への影響(I)	なし
可用性への影響(A)	なし
Get all privileges.	いいえ
Get user privileges	いいえ
Get other privileges	いいえ
User operation required	いいえ

Affected software configurations

Configuration1		or higher	or less	more than	less than
cpe:2.3:a:komodia:redirector_sdk:-:::::::*

Related information, measures and tools

No	URL	タグ
1	http://blog.erratasec.com/2015/02/extracting-superfish-certificate.html#.VOq6Yfn8Fp4	Exploit
2	http://blog.erratasec.com/2015/02/extracting-superfish-certificate.html#.VOq6Yfn8Fp4	Exploit
3	http://blog.erratasec.com/2015/02/some-notes-on-superfish.html#.VOq6Yvn8Fp4
4	http://blog.erratasec.com/2015/02/some-notes-on-superfish.html#.VOq6Yvn8Fp4
5	http://marcrogers.org/2015/02/19/lenovo-installs-adware-on-customer-laptops-and-compromises-all-ssl/
6	http://marcrogers.org/2015/02/19/lenovo-installs-adware-on-customer-laptops-and-compromises-all-ssl/
7	http://news.lenovo.com/article_display.cfm?article_id=1929
8	http://news.lenovo.com/article_display.cfm?article_id=1929
9	http://support.lenovo.com/us/en/product_security/superfish
10	http://support.lenovo.com/us/en/product_security/superfish
11	http://www.kb.cert.org/vuls/id/529496	Third Party Advisory US Government Resource
12	http://www.kb.cert.org/vuls/id/529496	Third Party Advisory US Government Resource
13	http://www.securityfocus.com/bid/72693
14	http://www.securityfocus.com/bid/72693
15	http://www.securitytracker.com/id/1031779
16	http://www.securitytracker.com/id/1031779
17	http://www.theguardian.com/technology/2015/feb/19/lenovo-accused-compromising-user-security-installing-adware-pcs-superfish
18	http://www.theguardian.com/technology/2015/feb/19/lenovo-accused-compromising-user-security-installing-adware-pcs-superfish
19	http://www.us-cert.gov/cas/techalerts/TA15-051A.html	Third Party Advisory US Government Resource
20	http://www.us-cert.gov/cas/techalerts/TA15-051A.html	Third Party Advisory US Government Resource
21	http://www.wired.com/2015/02/lenovo-superfish/
22	http://www.wired.com/2015/02/lenovo-superfish/
23	https://blog.filippo.io/komodia-superfish-ssl-validation-is-broken/	Exploit
24	https://blog.filippo.io/komodia-superfish-ssl-validation-is-broken/	Exploit
25	https://www.facebook.com/notes/protect-the-graph/windows-ssl-interception-gone-wild/1570074729899339
26	https://www.facebook.com/notes/protect-the-graph/windows-ssl-interception-gone-wild/1570074729899339

Common Vulnerabilities List

No	CWE	Name	URL
1	CWE-200	情報漏えい	https://cwe.mitre.org/data/definitions/200.html

JVN Vulnerability Information

複数の製品で使用される Komodia Redirector SDK の SSL Digestor における SSL サーバになりすまされる脆弱性

Title	複数の製品で使用される Komodia Redirector SDK の SSL Digestor における SSL サーバになりすまされる脆弱性
Summary	Lavasoft Ad-Aware Web Companion、Ad-Aware AdBlocker (alpha)、Windows 用 Qustodio、Atom Security, Inc. StaffCop、およびその他の製品で使用される Komodia Redirector SDK の SSL Digestor は、異なるカスタマのインストールのルート CA 証明書に、同一の X.509 証明書秘密鍵を使用するため、SSL サーバになりすまされる脆弱性が存在します。当初は、特定の Lenovo ノートパソコン製品上で稼動する Superfish VisualDiscovery に対して報告されていた脆弱性です。
Possible impacts	中間者攻撃 (man-in-the-middle attack) により、当該の秘密鍵の情報を利用されることで、SSL サーバになりすま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	Feb. 19, 2015, midnight
Registration Date	Feb. 26, 2015, 4:32 p.m.
Last Update	Feb. 26, 2015, 4:32 p.m.

Affected System

Komodia Inc.

Komodia Redirector SDK

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-2015-2077	http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-2077
National Vulnerability Database (NVD)
2	CVE-2015-2077	http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2015-2077

CWE (共通脆弱性タイプ一覧)

No	Name	URL
JVNDB
1	CWE-200	https://jvndb.jvn.jp/ja/cwe/CWE-200.html

ベンダー情報

No	Name	URL
Komodia Inc.
1	Komodia Redirector	http://www.komodia.com/products/komodia-redirector/
Lenovo
2	LEN-2015-010	http://support.lenovo.com/us/en/product_security/superfish
3	LENOVO STATEMENT ON SUPERFISH	http://news.lenovo.com/article_display.cfm?article_id=1929

その他

No	Name	URL
JVN
1	JVNTA#91476059	http://jvn.jp/ta/JVNTA91476059/
2	JVNVU#92865923	http://jvn.jp/vu/JVNVU92865923/
US-CERT Technical Cyber Security Alert
3	TA15-051A	https://www.us-cert.gov/ncas/alerts/TA15-051A
US-CERT Vulnerability Note
4	VU#529496	http://www.kb.cert.org/vuls/id/529496

Change Log

No	Changed Details	Date of change
0	[2015年02月26日] 掲載	Feb. 17, 2018, 10:37 a.m.