Auth bypass in Docker
CVE-2019-16884
runc through 1.0.0-rc8, as used in Docker through 19.03.2-ce and other products, allows AppArmor restriction bypass because libcontainer/rootfs_linux.go incorrectly checks mount targets, and thus a malicious Docker image can mount over a /proc directory.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.044 (91.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 91st percentile — 91.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.044 · newest: 0.044 · change: 0.000
Affected products
- Docker
- Linuxfoundation Runc — versions 1.0.0
- Canonical Ubuntu Linux — versions 18.04, 19.10
- Fedoraproject Fedora — versions 29, 30, 31
- openSUSE Leap — versions 15.0, 15.1
- Red Hat Enterprise Linux — versions 8.0
- Red Hat Enterprise Linux Eus — versions 8.1, 8.2, 8.4
- Red Hat Enterprise Linux Server Aus — versions 8.2, 8.4
- Red Hat Enterprise Linux Server Tus — versions 8.2, 8.4
- Red Hat Openshift Container Platform — versions 4.1, 4.2
Weakness classification (CWE)
Public proof-of-concept exploits
- 43622283/awesome-cloud-native-security
- ARPSyndicate/cvemon
- LouisLiuNova/container-escape-exploits
- Metarget/awesome-cloud-native-security
- Metarget/metarget
- PRISHIta123/Securing_
- adavarski/HomeLab-Proxmox-k8s-DevSecOps-playground
- adavarski/HomeLab-k8s-DevSecOps-playground
- atesemre/awesome-cloud-native-security
- ctrsploit/ctrsploit
References
- github.com/opencontainers/runc/issues/2128 (Exploit, Third Party Advisory, Issue Tracking)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.opensuse.org/opensuse-security-announce/2019-10/msg00073.html (vendor-advisory, Mailing List, Third Party Advisory)
- lists.opensuse.org/opensuse-security-announce/2019-11/msg00009.html (vendor-advisory, Mailing List, Third Party Advisory)
- access.redhat.com/errata/RHSA-2019:3940 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2019:4074 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2019:4269 (vendor-advisory, Third Party Advisory)
- lists.opensuse.org/opensuse-security-announce/2020-01/msg00010.html (vendor-advisory, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2019-16884?
- CVE-2019-16884 is a high-severity vulnerability in Docker, classified under Incorrect Authorization. CVSS score: 7.5/10. Published 2019-09-25.
- How severe is CVE-2019-16884?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2019-16884 known to be exploited?
- 23 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.