NVD Vulnerability Detail

CVE-2013-7373

Summary	Android before 4.4 does not properly arrange for seeding of the OpenSSL PRNG, which makes it easier for attackers to defeat cryptographic protection mechanisms by leveraging use of the PRNG within multiple applications.
Publication Date	April 30, 2014, 5:55 a.m.
Registration Date	Jan. 26, 2021, 3:49 p.m.
Last Update	Nov. 21, 2024, 11 a.m.

CVSS2.0 : HIGH
Score	7.5
Vector	AV:N/AC:L/Au:N/C:P/I:P/A:P
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)	低
可用性への影響(A)	低
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:o:google:android:2.2.3:::::::*
cpe:2.3:o:google:android:2.0.1:::::::*
cpe:2.3:o:google:android:1.0:::::::*
cpe:2.3:o:google:android:3.2.6:::::::*
cpe:2.3:o:google:android:4.2:::::::*
cpe:2.3:o:google:android:1.6:::::::*
cpe:2.3:o:google:android:2.1:::::::*
cpe:2.3:o:google:android:4.1:::::::*
cpe:2.3:o:google:android:3.2.4:::::::*
cpe:2.3:o:google:android:3.2:::::::*
cpe:2.3:o:google:android:3.2.2:::::::*
cpe:2.3:o:google:android:4.0.2:::::::*
cpe:2.3:o:google:android:2.3:rev1::::::
cpe:2.3:o:google:android::::::::		4.3.1
cpe:2.3:o:google:android:2.3.6:::::::*
cpe:2.3:o:google:android:4.0.4:::::::*
cpe:2.3:o:google:android:4.3:::::::*
cpe:2.3:o:google:android:4.0.1:::::::*
cpe:2.3:o:google:android:2.3.3:::::::*
cpe:2.3:o:google:android:3.0:::::::*
cpe:2.3:o:google:android:2.0:::::::*
cpe:2.3:o:google:android:4.2.1:::::::*
cpe:2.3:o:google:android:2.3.1:::::::*
cpe:2.3:o:google:android:2.3.5:::::::*
cpe:2.3:o:google:android:1.5:::::::*
cpe:2.3:o:google:android:3.1:::::::*
cpe:2.3:o:google:android:4.0.3:::::::*
cpe:2.3:o:google:android:2.2.1:::::::*
cpe:2.3:o:google:android:2.2.2:::::::*
cpe:2.3:o:google:android:2.2:::::::*
cpe:2.3:o:google:android:2.3.4:::::::*
cpe:2.3:o:google:android:4.0:::::::*
cpe:2.3:o:google:android:2.3.7:::::::*
cpe:2.3:o:google:android:2.2:rev1::::::
cpe:2.3:o:google:android:1.1:::::::*
cpe:2.3:o:google:android:4.2.2:::::::*
cpe:2.3:o:google:android:2.3.2:::::::*
cpe:2.3:o:google:android:3.2.1:::::::*
cpe:2.3:o:google:android:2.3:::::::*
cpe:2.3:o:google:android:4.1.2:::::::*

Related information, measures and tools

No	URL	refsource	タグ
1	http://android-developers.blogspot.com.au/2013/08/some-securerandom-thoughts.html
2	http://android-developers.blogspot.com.au/2013/08/some-securerandom-thoughts.html
3	http://emboss.github.io/blog/2013/08/21/openssl-prng-is-not-really-fork-safe/
4	http://emboss.github.io/blog/2013/08/21/openssl-prng-is-not-really-fork-safe/
5	http://marc.info/?l=openssl-dev&m=130289811108150&w=2
6	http://marc.info/?l=openssl-dev&m=130289811108150&w=2
7	http://marc.info/?l=openssl-dev&m=130298304903422&w=2
8	http://marc.info/?l=openssl-dev&m=130298304903422&w=2
9	http://www.reddit.com/r/Android/comments/1k6f03/due_to_a_serious_encryptionrng_flaw_in_android/cblvum5
10	http://www.reddit.com/r/Android/comments/1k6f03/due_to_a_serious_encryptionrng_flaw_in_android/cblvum5

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

Android における暗号保護メカニズムを破られる脆弱性

Title	Android における暗号保護メカニズムを破られる脆弱性
Summary	Android は、OpenSSL の PRNG シーディングを適切に配置しないため、暗号保護メカニズムを破られる脆弱性が存在します。
Possible impacts	攻撃者により、複数のアプリケーション内での PRNG の使用を利用されることで、暗号保護メカニズムを破ら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	Aug. 14, 2013, midnight
Registration Date	May 2, 2014, 4:45 p.m.
Last Update	May 2, 2014, 4:45 p.m.

Affected System

Google

Android 4.4 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-2013-7373	http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-7373
National Vulnerability Database (NVD)
2	CVE-2013-7373	http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2013-7373

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
Android Developers Blog
1	Some SecureRandom Thoughts	http://android-developers.blogspot.com.au/2013/08/some-securerandom-thoughts.html

その他

No	Name	URL
関連文書
1	OpenSSL PRNG Is Not (Really) Fork-safe	http://emboss.github.io/blog/2013/08/21/openssl-prng-is-not-really-fork-safe/

Change Log

No	Changed Details	Date of change
0	[2014年05月02日] 掲載	Feb. 17, 2018, 10:37 a.m.

Configuration1	or higher	or less	more than	less than
cpe:2.3:o:google:android:2.2.3:::::::*
cpe:2.3:o:google:android:2.0.1:::::::*
cpe:2.3:o:google:android:1.0:::::::*
cpe:2.3:o:google:android:3.2.6:::::::*
cpe:2.3:o:google:android:4.2:::::::*
cpe:2.3:o:google:android:1.6:::::::*
cpe:2.3:o:google:android:2.1:::::::*
cpe:2.3:o:google:android:4.1:::::::*
cpe:2.3:o:google:android:3.2.4:::::::*
cpe:2.3:o:google:android:3.2:::::::*
cpe:2.3:o:google:android:3.2.2:::::::*
cpe:2.3:o:google:android:4.0.2:::::::*
cpe:2.3:o:google:android:2.3:rev1::::::
cpe:2.3:o:google:android::::::::		4.3.1
cpe:2.3:o:google:android:2.3.6:::::::*
cpe:2.3:o:google:android:4.0.4:::::::*
cpe:2.3:o:google:android:4.3:::::::*
cpe:2.3:o:google:android:4.0.1:::::::*
cpe:2.3:o:google:android:2.3.3:::::::*
cpe:2.3:o:google:android:3.0:::::::*
cpe:2.3:o:google:android:2.0:::::::*
cpe:2.3:o:google:android:4.2.1:::::::*
cpe:2.3:o:google:android:2.3.1:::::::*
cpe:2.3:o:google:android:2.3.5:::::::*
cpe:2.3:o:google:android:1.5:::::::*
cpe:2.3:o:google:android:3.1:::::::*
cpe:2.3:o:google:android:4.0.3:::::::*
cpe:2.3:o:google:android:2.2.1:::::::*
cpe:2.3:o:google:android:2.2.2:::::::*
cpe:2.3:o:google:android:2.2:::::::*
cpe:2.3:o:google:android:2.3.4:::::::*
cpe:2.3:o:google:android:4.0:::::::*
cpe:2.3:o:google:android:2.3.7:::::::*
cpe:2.3:o:google:android:2.2:rev1::::::
cpe:2.3:o:google:android:1.1:::::::*
cpe:2.3:o:google:android:4.2.2:::::::*
cpe:2.3:o:google:android:2.3.2:::::::*
cpe:2.3:o:google:android:3.2.1:::::::*
cpe:2.3:o:google:android:2.3:::::::*
cpe:2.3:o:google:android:4.1.2:::::::*