Vulnerability CVE-2019-5736
Published: 2019-02-11

Description:
runc through 1.0-rc6, as used in Docker before 18.09.2 and other products, allows attackers to overwrite the host runc binary (and consequently obtain host root access) by leveraging the ability to execute a command as root within one of these types of containers: (1) a new container with an attacker-controlled image, or (2) an existing container, to which the attacker previously had write access, that can be attached with docker exec. This occurs because of file-descriptor mishandling, related to /proc/self/exe.

Type:

CWE-216

 (Containment Errors (Container Errors))

CVSS2 => (AV:N/AC:M/Au:N/C:C/I:C/A:C)

CVSS Base Score
Impact Subscore
Exploitability Subscore
9.3/10
10/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
Complete
Complete
Complete
Affected software
Redhat -> Openshift 
Redhat -> Enterprise linux 
Redhat -> Enterprise linux server 
Opensuse -> LEAP 
Opencontainers -> RUNC 
Netapp -> Element software management 
Linuxcontainers -> LXC 
HP -> Onesphere 
Google -> Kubernetes engine 
Fedoraproject -> Fedora 
Docker -> Docker 
Apache -> Mesos 

 References:
http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00044.html
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00074.html
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00091.html
http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00060.html
http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00073.html
http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00011.html
http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00015.html
http://www.openwall.com/lists/oss-security/2019/03/23/1
http://www.securityfocus.com/bid/106976
https://access.redhat.com/errata/RHSA-2019:0303
https://access.redhat.com/errata/RHSA-2019:0304
https://access.redhat.com/errata/RHSA-2019:0401
https://access.redhat.com/errata/RHSA-2019:0408
https://access.redhat.com/errata/RHSA-2019:0975
https://access.redhat.com/security/cve/cve-2019-5736
https://access.redhat.com/security/vulnerabilities/runcescape
https://aws.amazon.com/security/security-bulletins/AWS-2019-002/
https://azure.microsoft.com/en-us/updates/cve-2019-5736-and-runc-vulnerability/
https://azure.microsoft.com/en-us/updates/iot-edge-fix-cve-2019-5736/
https://blog.dragonsector.pl/2019/02/cve-2019-5736-escape-from-docker-and.html
https://brauner.github.io/2019/02/12/privileged-containers.html
https://bugzilla.suse.com/show_bug.cgi?id=1121967
https://cloud.google.com/kubernetes-engine/docs/security-bulletins#february-11-2019-runc
https://github.com/docker/docker-ce/releases/tag/v18.09.2
https://github.com/Frichetten/CVE-2019-5736-PoC
https://github.com/opencontainers/runc/commit/0a8e4117e7f715d5fbeef398405813ce8e88558b
https://github.com/opencontainers/runc/commit/6635b4f0c6af3810594d2770f662f34ddc15b40d
https://github.com/q3k/cve-2019-5736-poc
https://github.com/rancher/runc-cve
https://kubernetes.io/blog/2019/02/11/runc-and-cve-2019-5736/
https://lists.apache.org/thread.html/a258757af84c5074dc7bf932622020fd4f60cef65a84290380386706@%3Cuser.mesos.apache.org%3E
https://lists.apache.org/thread.html/a585f64d14c31ab393b90c5f17e41d9765a1a17eec63856ce750af46@%3Cdev.dlab.apache.org%3E
https://lists.apache.org/thread.html/acacf018c12636e41667e94ac0a1e9244e887eef2debdd474640aa6e@%3Cdev.dlab.apache.org%3E
https://lists.apache.org/thread.html/b162dd624dc088cd634292f0402282a1d1d0ce853baeae8205bc033c@%3Cdev.mesos.apache.org%3E
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SWFJGIPYAAAMVSWWI3QWYXGA3ZBU2H4W/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/V6A4OSFM5GGOWW4ECELV5OHX2XRAUSPH/
https://security.netapp.com/advisory/ntap-20190307-0008/
https://softwaresupport.softwaregrp.com/document/-/facetsearch/document/KM03410944
https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03913en_us
https://support.mesosphere.com/s/article/Known-Issue-Container-Runtime-Vulnerability-MSPH-2019-0003
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190215-runc
https://www.exploit-db.com/exploits/46359/
https://www.exploit-db.com/exploits/46369/
https://www.openwall.com/lists/oss-security/2019/02/11/2
https://www.synology.com/security/advisory/Synology_SA_19_06
https://www.twistlock.com/2019/02/11/how-to-mitigate-cve-2019-5736-in-runc-and-docker/
Copyright 2024, cxsecurity.com

 

Back to Top