drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Ausführen beliebiger Kommandos in OpenSSH
Name: |
Ausführen beliebiger Kommandos in OpenSSH |
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ID: |
RHSA-2016:2588-02 |
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Distribution: |
Red Hat |
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Plattformen: |
Red Hat Enterprise Linux |
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Datum: |
Do, 3. November 2016, 20:37 |
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Referenzen: |
https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/7/html/7.3_Release_Notes/index.html
https://access.redhat.com/security/cve/CVE-2015-8325 |
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Applikationen: |
OpenSSH |
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Originalnachricht |
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1
===================================================================== Red Hat Security Advisory
Synopsis: Moderate: openssh security, bug fix, and enhancement update Advisory ID: RHSA-2016:2588-02 Product: Red Hat Enterprise Linux Advisory URL: https://rhn.redhat.com/errata/RHSA-2016-2588.html Issue date: 2016-11-03 CVE Names: CVE-2015-8325 =====================================================================
1. Summary:
An update for openssh is now available for Red Hat Enterprise Linux 7.
Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
2. Relevant releases/architectures:
Red Hat Enterprise Linux Client (v. 7) - x86_64 Red Hat Enterprise Linux Client Optional (v. 7) - x86_64 Red Hat Enterprise Linux ComputeNode (v. 7) - x86_64 Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64 Red Hat Enterprise Linux Server (v. 7) - aarch64, ppc64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux Server Optional (v. 7) - aarch64, ppc64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux Workstation (v. 7) - x86_64 Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64
3. Description:
OpenSSH is an SSH protocol implementation supported by a number of Linux, UNIX, and similar operating systems. It includes the core files necessary for both the OpenSSH client and server.
Security Fix(es):
* It was discovered that the OpenSSH sshd daemon fetched PAM environment settings before running the login program. In configurations with UseLogin=yes and the pam_env PAM module configured to read user environment settings, a local user could use this flaw to execute arbitrary code as root. (CVE-2015-8325)
Additional Changes:
For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.3 Release Notes linked from the References section.
4. Solution:
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
After installing this update, the OpenSSH server daemon (sshd) will be restarted automatically.
5. Bugs fixed (https://bugzilla.redhat.com/):
1237129 - sshd -T does not output authenticationmethods with default value 1291172 - systemctl restart/start sshd shows no error if start fails 1310303 - remove GLOB_LIMIT_STAT from OpenSSH 1312013 - rhpkg prep fails on rhel-7.3 branch 1328012 - CVE-2015-8325 openssh: privilege escalation via user's PAM environment and UseLogin=yes 1328243 - OpenSSH only looks for .k5login in user directory 1344614 - sftp -m modifies umask and breaks permissions on new directories 1349556 - ssh-copy-id not working when custom loglevel is quiet 1357859 - guest_t can run sudo 1373297 - openssh can't be installed without selinux-policy
6. Package List:
Red Hat Enterprise Linux Client (v. 7):
Source: openssh-6.6.1p1-31.el7.src.rpm
x86_64: openssh-6.6.1p1-31.el7.x86_64.rpm openssh-askpass-6.6.1p1-31.el7.x86_64.rpm openssh-clients-6.6.1p1-31.el7.x86_64.rpm openssh-debuginfo-6.6.1p1-31.el7.x86_64.rpm openssh-keycat-6.6.1p1-31.el7.x86_64.rpm openssh-server-6.6.1p1-31.el7.x86_64.rpm
Red Hat Enterprise Linux Client Optional (v. 7):
x86_64: openssh-debuginfo-6.6.1p1-31.el7.i686.rpm openssh-debuginfo-6.6.1p1-31.el7.x86_64.rpm openssh-ldap-6.6.1p1-31.el7.x86_64.rpm openssh-server-sysvinit-6.6.1p1-31.el7.x86_64.rpm pam_ssh_agent_auth-0.9.3-9.31.el7.i686.rpm pam_ssh_agent_auth-0.9.3-9.31.el7.x86_64.rpm
Red Hat Enterprise Linux ComputeNode (v. 7):
Source: openssh-6.6.1p1-31.el7.src.rpm
x86_64: openssh-6.6.1p1-31.el7.x86_64.rpm openssh-clients-6.6.1p1-31.el7.x86_64.rpm openssh-debuginfo-6.6.1p1-31.el7.x86_64.rpm openssh-keycat-6.6.1p1-31.el7.x86_64.rpm openssh-server-6.6.1p1-31.el7.x86_64.rpm
Red Hat Enterprise Linux ComputeNode Optional (v. 7):
x86_64: openssh-askpass-6.6.1p1-31.el7.x86_64.rpm openssh-debuginfo-6.6.1p1-31.el7.i686.rpm openssh-debuginfo-6.6.1p1-31.el7.x86_64.rpm openssh-ldap-6.6.1p1-31.el7.x86_64.rpm openssh-server-sysvinit-6.6.1p1-31.el7.x86_64.rpm pam_ssh_agent_auth-0.9.3-9.31.el7.i686.rpm pam_ssh_agent_auth-0.9.3-9.31.el7.x86_64.rpm
Red Hat Enterprise Linux Server (v. 7):
Source: openssh-6.6.1p1-31.el7.src.rpm
aarch64: openssh-6.6.1p1-31.el7.aarch64.rpm openssh-askpass-6.6.1p1-31.el7.aarch64.rpm openssh-clients-6.6.1p1-31.el7.aarch64.rpm openssh-debuginfo-6.6.1p1-31.el7.aarch64.rpm openssh-keycat-6.6.1p1-31.el7.aarch64.rpm openssh-server-6.6.1p1-31.el7.aarch64.rpm
ppc64: openssh-6.6.1p1-31.el7.ppc64.rpm openssh-askpass-6.6.1p1-31.el7.ppc64.rpm openssh-clients-6.6.1p1-31.el7.ppc64.rpm openssh-debuginfo-6.6.1p1-31.el7.ppc64.rpm openssh-keycat-6.6.1p1-31.el7.ppc64.rpm openssh-server-6.6.1p1-31.el7.ppc64.rpm
ppc64le: openssh-6.6.1p1-31.el7.ppc64le.rpm openssh-askpass-6.6.1p1-31.el7.ppc64le.rpm openssh-clients-6.6.1p1-31.el7.ppc64le.rpm openssh-debuginfo-6.6.1p1-31.el7.ppc64le.rpm openssh-keycat-6.6.1p1-31.el7.ppc64le.rpm openssh-server-6.6.1p1-31.el7.ppc64le.rpm
s390x: openssh-6.6.1p1-31.el7.s390x.rpm openssh-askpass-6.6.1p1-31.el7.s390x.rpm openssh-clients-6.6.1p1-31.el7.s390x.rpm openssh-debuginfo-6.6.1p1-31.el7.s390x.rpm openssh-keycat-6.6.1p1-31.el7.s390x.rpm openssh-server-6.6.1p1-31.el7.s390x.rpm
x86_64: openssh-6.6.1p1-31.el7.x86_64.rpm openssh-askpass-6.6.1p1-31.el7.x86_64.rpm openssh-clients-6.6.1p1-31.el7.x86_64.rpm openssh-debuginfo-6.6.1p1-31.el7.x86_64.rpm openssh-keycat-6.6.1p1-31.el7.x86_64.rpm openssh-server-6.6.1p1-31.el7.x86_64.rpm
Red Hat Enterprise Linux Server Optional (v. 7):
aarch64: openssh-debuginfo-6.6.1p1-31.el7.aarch64.rpm openssh-ldap-6.6.1p1-31.el7.aarch64.rpm openssh-server-sysvinit-6.6.1p1-31.el7.aarch64.rpm pam_ssh_agent_auth-0.9.3-9.31.el7.aarch64.rpm
ppc64: openssh-debuginfo-6.6.1p1-31.el7.ppc.rpm openssh-debuginfo-6.6.1p1-31.el7.ppc64.rpm openssh-ldap-6.6.1p1-31.el7.ppc64.rpm openssh-server-sysvinit-6.6.1p1-31.el7.ppc64.rpm pam_ssh_agent_auth-0.9.3-9.31.el7.ppc.rpm pam_ssh_agent_auth-0.9.3-9.31.el7.ppc64.rpm
ppc64le: openssh-debuginfo-6.6.1p1-31.el7.ppc64le.rpm openssh-ldap-6.6.1p1-31.el7.ppc64le.rpm openssh-server-sysvinit-6.6.1p1-31.el7.ppc64le.rpm pam_ssh_agent_auth-0.9.3-9.31.el7.ppc64le.rpm
s390x: openssh-debuginfo-6.6.1p1-31.el7.s390.rpm openssh-debuginfo-6.6.1p1-31.el7.s390x.rpm openssh-ldap-6.6.1p1-31.el7.s390x.rpm openssh-server-sysvinit-6.6.1p1-31.el7.s390x.rpm pam_ssh_agent_auth-0.9.3-9.31.el7.s390.rpm pam_ssh_agent_auth-0.9.3-9.31.el7.s390x.rpm
x86_64: openssh-debuginfo-6.6.1p1-31.el7.i686.rpm openssh-debuginfo-6.6.1p1-31.el7.x86_64.rpm openssh-ldap-6.6.1p1-31.el7.x86_64.rpm openssh-server-sysvinit-6.6.1p1-31.el7.x86_64.rpm pam_ssh_agent_auth-0.9.3-9.31.el7.i686.rpm pam_ssh_agent_auth-0.9.3-9.31.el7.x86_64.rpm
Red Hat Enterprise Linux Workstation (v. 7):
Source: openssh-6.6.1p1-31.el7.src.rpm
x86_64: openssh-6.6.1p1-31.el7.x86_64.rpm openssh-askpass-6.6.1p1-31.el7.x86_64.rpm openssh-clients-6.6.1p1-31.el7.x86_64.rpm openssh-debuginfo-6.6.1p1-31.el7.x86_64.rpm openssh-keycat-6.6.1p1-31.el7.x86_64.rpm openssh-server-6.6.1p1-31.el7.x86_64.rpm
Red Hat Enterprise Linux Workstation Optional (v. 7):
x86_64: openssh-debuginfo-6.6.1p1-31.el7.i686.rpm openssh-debuginfo-6.6.1p1-31.el7.x86_64.rpm openssh-ldap-6.6.1p1-31.el7.x86_64.rpm openssh-server-sysvinit-6.6.1p1-31.el7.x86_64.rpm pam_ssh_agent_auth-0.9.3-9.31.el7.i686.rpm pam_ssh_agent_auth-0.9.3-9.31.el7.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/
7. References:
https://access.redhat.com/security/cve/CVE-2015-8325 https://access.redhat.com/security/updates/classification/#moderate https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/7/html/7.3_Release_Notes/index.html
8. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/
Copyright 2016 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1
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