製品・ソフトウェアに関する情報

JVN脆弱性詳細

Perl 用 Module::Signature モジュールの cpansign 検証機能における署名チェックを回避される脆弱性

Title	Perl 用 Module::Signature モジュールの cpansign 検証機能における署名チェックを回避される脆弱性
Summary	Perl 用 Module::Signature モジュールの cpansign 検証機能には、署名チェックを回避され、任意のコードを実行される脆弱性が存在します。
Possible impacts	攻撃者により、Digest/ 配下の信頼できないモジュールを参照する "特別な未知の暗号 (special unknown cipher)" を持つ SIGNATURE ファイルを介して、署名チェックを回避され、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	June 4, 2013, midnight
Registration Date	Aug. 21, 2013, 7:39 p.m.
Last Update	Aug. 21, 2013, 7:39 p.m.

Affected System

Novell

openSUSE 11.4

openSUSE 12.2

openSUSE 12.3

Canonical

Ubuntu 12.04 LTS

Ubuntu 12.10

Ubuntu 13.04

audreyt

Module::Signature 0.72 およびそれ以前

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-2013-2145	http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-2145
National Vulnerability Database (NVD)
2	CVE-2013-2145	http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2013-2145

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
CPAN
1	Module-Signature-0.73	http://search.cpan.org/dist/Module-Signature/
GitHub
2	0.72 with an improved path checker from @fweimer	https://github.com/audreyt/module-signature/commit/cbd06b392a73c63159dc5c20ff5b3c8fc88c4896
3	Version 71 with advisory from @fweimer	https://github.com/audreyt/module-signature/commit/575f7bd6ba4cc7c92f841e8758f88a131674ebf2
opensuse-updates
4	openSUSE-SU-2013:1178	http://lists.opensuse.org/opensuse-updates/2013-07/msg00039.html
5	openSUSE-SU-2013:1185	http://lists.opensuse.org/opensuse-updates/2013-07/msg00043.html
Red Hat Bugzilla
6	Bug 971096	https://bugzilla.redhat.com/show_bug.cgi?id=971096
Ubuntu Security Notice
7	USN-1896-1	http://www.ubuntu.com/usn/USN-1896-1/

Change Log

No	Changed Details	Date of change
0	[2013年08月21日] 掲載	Feb. 17, 2018, 10:37 a.m.

NVD Vulnerability Information

CVE-2013-2145

Summary	The cpansign verify functionality in the Module::Signature module before 0.72 for Perl allows attackers to bypass the signature check and execute arbitrary code via a SIGNATURE file with a "special unknown cipher" that references an untrusted module in Digest/.
Publication Date	Aug. 20, 2013, 8:55 a.m.
Registration Date	Jan. 26, 2021, 3:37 p.m.
Last Update	Nov. 21, 2024, 10:51 a.m.

Affected software configurations

Configuration1	or higher	or less	more than	less than
cpe:2.3:o:canonical:ubuntu_linux:13.04:::::::*
cpe:2.3:o:canonical:ubuntu_linux:12.10:::::::*
cpe:2.3:o:canonical:ubuntu_linux:12.04:-:lts:::::*

Configuration3	or higher	or less	more than	less than
cpe:2.3:a:perlmonks:module\:\:signature::::::perl::*		0.72
cpe:2.3:a:perlmonks:module\:\:signature:0.70:::::perl::
cpe:2.3:a:perlmonks:module\:\:signature:0.71:::::perl::

Related information, measures and tools

No	URL	タグ
1	http://lists.opensuse.org/opensuse-updates/2013-07/msg00039.html
2	http://lists.opensuse.org/opensuse-updates/2013-07/msg00039.html
3	http://lists.opensuse.org/opensuse-updates/2013-07/msg00043.html
4	http://lists.opensuse.org/opensuse-updates/2013-07/msg00043.html
5	http://www.openwall.com/lists/oss-security/2013/06/05/16
6	http://www.openwall.com/lists/oss-security/2013/06/05/16
7	http://www.securityfocus.com/bid/60352
8	http://www.securityfocus.com/bid/60352
9	http://www.ubuntu.com/usn/USN-1896-1
10	http://www.ubuntu.com/usn/USN-1896-1
11	https://bugzilla.redhat.com/show_bug.cgi?id=971096
12	https://bugzilla.redhat.com/show_bug.cgi?id=971096
13	https://github.com/audreyt/module-signature/commit/575f7bd6ba4cc7c92f841e8758f88a131674ebf2	Exploit Patch
14	https://github.com/audreyt/module-signature/commit/575f7bd6ba4cc7c92f841e8758f88a131674ebf2	Exploit Patch
15	https://github.com/audreyt/module-signature/commit/cbd06b392a73c63159dc5c20ff5b3c8fc88c4896	Exploit Patch
16	https://github.com/audreyt/module-signature/commit/cbd06b392a73c63159dc5c20ff5b3c8fc88c4896	Exploit Patch

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