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security advisoryhigh severityprivilege escalationArch Linux ASA-201505-6 High: Docker Privilege Escalation Threats
The package docker before version 1:1.6.1-1 is vulnerable to multiple issues including but not limited to privilege escalation, symlink traversal, unauthorized configuration modification, information disclosure and policy profile escalation. . Arch Linux Security Advisory ASA-201505-6 ======================================== Severity: High Date : 2015-05-08 CVE-ID : CVE-2015-3627 CVE-2015-3629 CVE-2015-3630 CVE-2015-3631 Package : docker Type : multiple issues Remote : Yes Link : https://wiki.archlinux.org/title/CVE Summary ====== The package docker before version 1:1.6.1-1 is vulnerable to multiple issues including but not limited to privilege escalation, symlink traversal, unauthorized configuration modification, information disclosure and policy profile escalation. Resolution ========= Upgrade to 1:1.6.1-1. # pacman -Syu "docker> =1:1.6.1-1" The problems have been fixed upstream in version 1.6.1. Workaround ========= None. Description ========== - CVE-2015-3627 (privilege escalation) The file-descriptor passed by libcontainer to the pid-1 process of a container has been found to be opened prior to performing the chroot, allowing insecure open and symlink traversal. This allows malicious container images to trigger a local privilege escalation. - CVE-2015-3629 (privilege escalation) Symlink traversal on container respawn allows local privilege escalation. Libcontainer version 1.6.0 introduced changes which facilitated a mount namespace breakout upon respawn of a container. This allowed malicious images to write files to the host system and escape containerization. - CVE-2015-3630 (unauthorized modification) Several paths underneath /proc were writable from containers, allowing global system manipulation and configuration. These paths included /proc/asound, /proc/timer_stats, /proc/latency_stats, and /proc/fs. By allowing writes to /proc/fs, it has been noted that CIFS volumes could be forced into a protocol downgrade attack by a rootuser operating inside of a container. Machines having loaded the timer_stats module were vulnerable to having this mechanism enabled and consumed by a container. - CVE-2015-3631 (policy profile escalation) By allowing volumes to override files of /proc within a mount namespace, a user could specify arbitrary policies for Linux Security Modules, including setting an unconfined policy underneath AppArmor, or a docker_t policy for processes managed by SELinux. In all versions of Docker up until 1.6.1, it is possible for malicious images to configure volume mounts such that files of proc may be overridden. Impact ===== A remote attacker is able to escalate privileges via unsafe symlink traversal, modify the configuration of the host system or disclose information via specific writable descriptors in /proc or escalate the LSM policy profiles by overriding files of /proc. References ========= https://seclists.org/oss-sec/2015/q2/389 https://access.redhat.com/security/cve/CVE-2015-3627 https://access.redhat.com/security/cve/CVE-2015-3629 https://access.redhat.com/security/cve/CVE-2015-3630 https://access.redhat.com/security/cve/CVE-2015-3631 . Arch Linux Security Advisory ASA-202303-1 outlines critical vulnerabilities in the nginx package, urging users to perform an immediate update for enhanced protection.. Docker Security, Arch Linux Advisories, Escalation Threats, Security Issues. . LinuxSecurity.com Team
May 08, 2015
ArchLinux
198
security advisoryprivilege escalationmedium severityArch Linux: ASA-201412-16 Medium Severity Docker Privilege Escalation
The package docker before version 1:1.4.0-1 is vulnerable to multiple issues including but not limited to privilege escalation and path traversal. . Arch Linux Security Advisory ASA-201412-16 ========================================= Severity: Medium Date : 2014-12-15 CVE-ID : CVE-2014-9356 CVE-2014-9357 CVE-2014-9358 Package : docker Type : multiple issues Remote : No Link : https://wiki.archlinux.org/title/CVE-2014 Summary ====== The package docker before version 1:1.4.0-1 is vulnerable to multiple issues including but not limited to privilege escalation and path traversal. Resolution ========= Upgrade to 1:1.4.0-1. # pacman -Syu "docker> =1:1.4.0-1" The problems have been fixed upstream in version 1.4.0. Workaround ========= None. Description ========== - CVE-2014-9356 (path traversal) Path traversal attacks are possible in the processing of absolute symlinks. In checking symlinks for traversals, only relative links were considered. This allowed path traversals to exist where they should have otherwise been prevented. This was exploitable via both archive extraction and through volume mounts. This vulnerability allowed malicious images or builds from malicious Dockerfiles to write files to the host system and escape containerization, leading to privilege escalation. - CVE-2014-9357 (privilege escalation) It has been discovered that the introduction of chroot for archive extraction in Docker 1.3.2 had introduced a privilege escalation vulnerability. Malicious images or builds from malicious Dockerfiles could escalate privileges and execute arbitrary code as a privileged root user on the Docker host by providing a malicious ‘xz’ binary. - CVE-2014-9358 (path traversal) It has been discovered that Docker does not sufficiently validate Image IDs as provided either via 'docker load' or through registry communications. This allows for path traversal attacks, causing graph corruption and manipulation by malicious images, as well asrepository spoofing attacks. Impact ===== A local attacker is able to create malicious Dockerfiles or image IDs in order to perform privilege escalation or path traversal. References ========= https://access.redhat.com/security/cve/CVE-2014-9356 https://access.redhat.com/security/cve/CVE-2014-9357 https://access.redhat.com/security/cve/CVE-2014-9358 . Arch Linux Security Advisory ASA-202310-07 outlines concerning vulnerabilities categorized as low severity in the Samba software package prior to version 4.17.1-2.. docker Security Advisory, Arch Linux Issues, Privilege Escalation, Path Traversal. . Severity: Medium. LinuxSecurity.com Team
Dec 15, 2014
•Medium
ArchLinux
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