drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Mangelnde Rechteprüfung in sudo
Name: |
Mangelnde Rechteprüfung in sudo |
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ID: |
201606-13 |
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Distribution: |
Gentoo |
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Plattformen: |
Keine Angabe |
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Datum: |
So, 26. Juni 2016, 16:48 |
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Referenzen: |
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2015-5602 |
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Applikationen: |
sudo |
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Originalnachricht |
This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --0kXJStgCg5JUsP8EErlcOHpH1RoIblqD8 Content-Type: multipart/mixed; boundary="GJwHXOGjqoQjDebM4c2OAqU8BBmNRKLNj" From: Aaron Bauman <bman@gentoo.org> To: gentoo-announce@lists.gentoo.org Message-ID: <4db9183f-3b87-fe40-2459-2f7d6c1b0f78@gentoo.org> Subject: [ GLSA 201606-13 ] sudo: Unauthorized privilege escalation in sudoedit
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This is a multi-part message in MIME format. --------------152243332E6D96342F0F3A9F Content-Type: text/plain; charset=utf- Content-Transfer-Encoding: quoted-printable
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 201606-13 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - https://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Severity: Normal Title: sudo: Unauthorized privilege escalation in sudoedit Date: June 26, 2016 Bugs: #564774 ID: 201606-13
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Synopsis ========
sudo is vulnerable to an escalation of privileges via a symlink attack.
Background ==========
sudo (su "do") allows a system administrator to delegate authority to give certain users (or groups of users) the ability to run some (or all) commands as root or another user while providing an audit trail of the commands and their arguments.
Affected packages =================
------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 app-admin/sudo < 1.8.15-r1 >= 1.8.15-r1
Description ===========
sudoedit in sudo is vulnerable to the escalation of privileges by local users via a symlink attack. This can be exploited by a file whose full path is defined using multiple wildcards in /etc/sudoers, as demonstrated by "/home/*/*/file.txt.
Impact ======
Local users are able to gain unauthorized privileges on the system.
Workaround ==========
There is no known work around at this time.
Resolution ==========
All sudo users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=app-admin/sudo-1.8.15-r1"
References ==========
[ 1 ] CVE-2015-5602 http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2015-5602
Availability ============
This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
https://security.gentoo.org/glsa/201606-13
Concerns? =========
Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users' machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.
License =======
Copyright 2016 Gentoo Foundation, Inc; referenced text belongs to its owner(s).
The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license.
http://creativecommons.org/licenses/by-sa/2.5
--------------152243332E6D96342F0F3A9F Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable
<html> <head>
<meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3Dutf= -8"> </head> <body bgcolor=3D"#FFFFFF" text=3D"#000000"> <p> <meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3Du= tf-8"> </p> <pre style=3D"color: rgb(0, 0, 0); font-style: normal; font-variant: = normal; font-weight: normal; letter-spacing: normal; line-height: normal;= orphans: auto; text-align: start; text-indent: 0px; text-transform: none= ; widows: 1; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap= : break-word; white-space: pre-wrap;">- - - - - - - - - - - - - - - - - -= - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 201606-13 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - <a class=3D"moz-txt-link-freet= ext" href=3D"https://security.gentoo.org/">https://security.gentoo.org/</= a> - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Severity: Normal Title: sudo: Unauthorized privilege escalation in sudoedit Date: June 26, 2016 Bugs: #564774 ID: 201606-13
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Synopsis =3D=3D=3D=3D=3D=3D=3D=3D
sudo is vulnerable to an escalation of privileges via a symlink attack.
Background =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
sudo (su "do") allows a system administrator to delegate authority to give certain users (or groups of users) the ability to run some (or all) commands as root or another user while providing an audit trail of the commands and their arguments.
Affected packages =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 app-admin/sudo < 1.8.15-r1 >=3D 1.8.1= 5-r1=20
Description =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
sudoedit in sudo is vulnerable to the escalation of privileges by local users via a symlink attack. This can be exploited by a file whose full path is defined using multiple wildcards in /etc/sudoers, as demonstrated by "/home/*/*/file.txt.
Impact =3D=3D=3D=3D=3D=3D
Local users are able to gain unauthorized privileges on the system.
Workaround =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
There is no known work around at this time.
Resolution =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
All sudo users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=3Dapp-admin/sudo-1.8.15-r1"
References =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
[ 1 ] CVE-2015-5602 <a class=3D"moz-txt-link-freetext" href=3D"http://web.nvd.nist.gov/= view/vuln/detail?vulnId=3DCVE-2015-5602">http://web.nvd.nist.gov/view/vul= n/detail?vulnId=3DCVE-2015-5602</a>
Availability =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
<a class=3D"moz-txt-link-freetext" href=3D"https://security.gentoo.org/g= lsa/201606-13">https://security.gentoo.org/glsa/201606-13</a>
Concerns? =3D=3D=3D=3D=3D=3D=3D=3D=3D
Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users' machines is of utmost importance to us. Any security concerns should be addressed to <a class=3D"moz-txt-link-abbreviated" href=3D"mailto:security@gentoo.org"= >security@gentoo.org</a> or alternatively, you may file a bug at <a class=3D"moz-txt-link-freetext" href=3D"https://bugs.gentoo.org">https= ://bugs.gentoo.org</a>.
License =3D=3D=3D=3D=3D=3D=3D
Copyright 2016 Gentoo Foundation, Inc; referenced text belongs to its owner(s).
The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license.
<a class=3D"moz-txt-link-freetext" href=3D"http://creativecommons.org/lic= enses/by-sa/2.5">http://creativecommons.org/licenses/by-sa/2.5</a></pre> </body> </html>
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