NVD Vulnerability Detail

CVE-2010-4020

Summary	MIT Kerberos 5 (aka krb5) 1.8.x through 1.8.3 does not reject RC4 key-derivation checksums, which might allow remote authenticated users to forge a (1) AD-SIGNEDPATH or (2) AD-KDC-ISSUED signature, and possibly gain privileges, by leveraging the small key space that results from certain one-byte stream-cipher operations.
Publication Date	Dec. 3, 2010, 1:22 a.m.
Registration Date	Jan. 29, 2021, 11:07 a.m.
Last Update	Nov. 21, 2024, 10:20 a.m.

CVSS3.0 : MEDIUM
スコア	6.3
Vector	CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
攻撃元区分(AV)	ネットワーク
攻撃条件の複雑さ(AC)	低
攻撃に必要な特権レベル(PR)	低
利用者の関与(UI)	不要
影響の想定範囲(S)	変更なし
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

CVSS2.0 : LOW
Score	3.5
Vector	AV:N/AC:M/Au:S/C:N/I:P/A:N
攻撃元区分(AV)	ネットワーク
攻撃条件の複雑さ(AC)	中
攻撃前の認証要否(Au)	単一
機密性への影響(C)	なし
完全性への影響(I)	低
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:mit:kerberos_5:1.8:::::::*
cpe:2.3:a:mit:kerberos_5:1.8.1:::::::*
cpe:2.3:a:mit:kerberos_5:1.8.2:::::::*
cpe:2.3:a:mit:kerberos_5:1.8.3:::::::*

Related information, measures and tools

No	URL	タグ
1	http://kb.vmware.com/kb/1035108
2	http://kb.vmware.com/kb/1035108
3	http://lists.apple.com/archives/security-announce/2011/Mar/msg00006.html
4	http://lists.apple.com/archives/security-announce/2011/Mar/msg00006.html
5	http://lists.fedoraproject.org/pipermail/package-announce/2010-December/051976.html
6	http://lists.fedoraproject.org/pipermail/package-announce/2010-December/051976.html
7	http://lists.fedoraproject.org/pipermail/package-announce/2010-December/051999.html
8	http://lists.fedoraproject.org/pipermail/package-announce/2010-December/051999.html
9	http://lists.opensuse.org/opensuse-security-announce/2010-12/msg00000.html
10	http://lists.opensuse.org/opensuse-security-announce/2010-12/msg00000.html
11	http://lists.opensuse.org/opensuse-security-announce/2010-12/msg00006.html
12	http://lists.opensuse.org/opensuse-security-announce/2010-12/msg00006.html
13	http://lists.vmware.com/pipermail/security-announce/2011/000133.html
14	http://lists.vmware.com/pipermail/security-announce/2011/000133.html
15	http://osvdb.org/69608
16	http://osvdb.org/69608
17	http://secunia.com/advisories/42399	Vendor Advisory
18	http://secunia.com/advisories/42399	Vendor Advisory
19	http://support.apple.com/kb/HT4581
20	http://support.apple.com/kb/HT4581
21	http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2010-007.txt	Vendor Advisory
22	http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2010-007.txt	Vendor Advisory
23	http://www.mandriva.com/security/advisories?name=MDVSA-2010:246
24	http://www.mandriva.com/security/advisories?name=MDVSA-2010:246
25	http://www.oracle.com/technetwork/topics/security/cpujul2015-2367936.html	Patch Vendor Advisory
26	http://www.oracle.com/technetwork/topics/security/cpujul2015-2367936.html	Patch Vendor Advisory
27	http://www.redhat.com/support/errata/RHSA-2010-0925.html
28	http://www.redhat.com/support/errata/RHSA-2010-0925.html
29	http://www.securityfocus.com/archive/1/514953/100/0/threaded
30	http://www.securityfocus.com/archive/1/514953/100/0/threaded
31	http://www.securityfocus.com/archive/1/517739/100/0/threaded
32	http://www.securityfocus.com/archive/1/517739/100/0/threaded
33	http://www.securityfocus.com/bid/45117
34	http://www.securityfocus.com/bid/45117
35	http://www.securitytracker.com/id?1024803
36	http://www.securitytracker.com/id?1024803
37	http://www.ubuntu.com/usn/USN-1030-1
38	http://www.ubuntu.com/usn/USN-1030-1
39	http://www.vmware.com/security/advisories/VMSA-2011-0007.html
40	http://www.vmware.com/security/advisories/VMSA-2011-0007.html
41	http://www.vupen.com/english/advisories/2010/3094
42	http://www.vupen.com/english/advisories/2010/3094
43	http://www.vupen.com/english/advisories/2010/3095
44	http://www.vupen.com/english/advisories/2010/3095
45	http://www.vupen.com/english/advisories/2010/3118
46	http://www.vupen.com/english/advisories/2010/3118

Common Vulnerabilities List

No	CWE	Name	URL
1	CWE-310	暗号の問題	https://cwe.mitre.org/data/definitions/310.html

JVN Vulnerability Information

MIT Kerberos 5 における AD-SIGNEDPATH または AD-KDC-ISSUED 署名を偽造される脆弱性

Title	MIT Kerberos 5 における AD-SIGNEDPATH または AD-KDC-ISSUED 署名を偽造される脆弱性
Summary	MIT Kerberos 5 は、RC4 key-derivation チェックサムを拒否しないため、AD-SIGNEDPATH および AD-KDC-ISSUED 署名を偽造される、または権限を取得される脆弱性が存在します。
Possible impacts	リモート認証されたユーザにより、ストリーム暗号オペレーションから生じるわずかな鍵空間を利用され、AD-SIGNEDPATH および AD-KDC-ISSUED 署名を偽造される、または権限を取得される脆弱性が存在します。
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	Nov. 30, 2010, midnight
Registration Date	Dec. 22, 2010, 2:59 p.m.
Last Update	July 29, 2015, 5:41 p.m.

Affected System

レッドハット

Red Hat Enterprise Linux Desktop 6

Red Hat Enterprise Linux HPC Node 6

Red Hat Enterprise Linux Server 6

Red Hat Enterprise Linux Workstation 6

オラクル

Oracle Virtualization の Oracle Secure Global Desktop 4.63

Oracle Virtualization の Oracle Secure Global Desktop 4.71

Oracle Virtualization の Oracle Secure Global Desktop 5.1

Oracle Virtualization の Oracle Secure Global Desktop 5.2

アップル

Apple Mac OS X v10.5.8

Apple Mac OS X v10.6 から v10.6.6

Apple Mac OS X Server v10.5.8

Apple Mac OS X Server v10.6 から v10.6.6

MIT Kerberos

Kerberos 5 1.8.3 およびそれ以前

VMware

VMware ESX 4.1

VMware ESXi 4.1

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-2010-4020	http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-4020
National Vulnerability Database (NVD)
2	CVE-2010-4020	http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2010-4020

CWE (共通脆弱性タイプ一覧)

No	Name	URL
JVNDB
1	CWE-DesignError	https://www.ipa.go.jp/security/vuln/CWE.html#CWEDesignError

ベンダー情報

No	Name	URL
Apple Security Updates
1	HT4581	http://support.apple.com/kb/HT4581
Apple セキュリティアップデート
2	HT4581	http://support.apple.com/kb/HT4581?viewlocale=ja_JP
MIT krb5 Security Advisory
3	MITKRB5-SA-2010-007	http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2010-007.txt
Oracle Critical Patch Update
4	Oracle Critical Patch Update Advisory - July 2015	http://www.oracle.com/technetwork/topics/security/cpujul2015-2367936.html
5	Text Form of Oracle Critical Patch Update - July 2015 Risk Matrices	http://www.oracle.com/technetwork/topics/security/cpujul2015verbose-2367947.html
Red Hat Security Advisory
6	RHSA-2010:0925	https://rhn.redhat.com/errata/RHSA-2010-0925.html
SECURITY BLOG
7	July 2015 Critical Patch Update Released	https://blogs.oracle.com/security/entry/july_2015_critical_patch_update
8	Multiple vulnerabilities in kerberos	https://blogs.oracle.com/sunsecurity/entry/multiple_vulnerabilities_in_kerberos
VMware Security Advisories
9	VMSA-2011-0007	http://www.vmware.com/security/advisories/VMSA-2011-0007.html

その他

No	Name	URL
JVN
1	JVNVU#636925	http://jvn.jp/cert/JVNVU636925
OPEN SOURCE VULNERABILITY DATABASE (OSVDB)
2	69608	http://osvdb.org/69608
Secunia Advisory
3	SA42396	http://secunia.com/advisories/42396
4	SA42399	http://secunia.com/advisories/42399
SecurityFocus
5	45117	http://www.securityfocus.com/bid/45117
SecurityTracker
6	1024803	http://www.securitytracker.com/id?1024803
VUPEN Security
7	VUPEN/ADV-2010-3094	http://www.vupen.com/english/advisories/2010/3094
8	VUPEN/ADV-2010-3095	http://www.vupen.com/english/advisories/2010/3095

Change Log

No	Changed Details	Date of change
0	[2010年12月22日] 掲載 [2011年04月04日] 影響を受けるシステム：アップル (HT4581) の情報を追加ベンダ情報：アップル (HT4581) を追加 [2011年05月16日] 影響を受けるシステム：VMware (VMSA-2011-0007) の情報を追加ベンダ情報：VMware (VMSA-2011-0007) を追加 [2013年11月01日] ベンダ情報：オラクル (Multiple vulnerabilities in kerberos) を追加 [2015年07月29日] 影響を受けるシステム：ベンダ情報の追加に伴い内容を更新ベンダ情報：オラクル (Oracle Critical Patch Update Advisory - July 2015) を追加ベンダ情報：オラクル (Text Form of Oracle Critical Patch Update - July 2015 Risk Matrices) を追加ベンダ情報：オラクル (July 2015 Critical Patch Update Released) を追加	Feb. 17, 2018, 10:37 a.m.