CVE-2018-14649 Code injection in ceph-iscsi-cli
Unauthenticated attackers can access a debug shell in ceph-iscsi-cli to execute arbitrary commands with root privileges due to enabled Werkzeug debug mode.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2018-14649?
CVE-2018-14649 is a critical code injection vulnerability in Redhat Enterprise Linux Desktop, published on 9 Oct 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
It was found that ceph-isci-cli package as shipped by Red Hat Ceph Storage 2 and 3 is using python-werkzeug in debug shell mode. This is done by setting debug=True in file /usr/bin/rbd-target-api provided by ceph-isci-cli package. This allows unauthenticated attackers to access this debug shell and escalate privileges. Once an attacker has successfully connected to this debug shell they will be able to execute arbitrary commands remotely. These commands will run with the same privileges as of user executing the application which is using python-werkzeug with debug shell mode enabled. In - Red Hat Ceph Storage 2 and 3, ceph-isci-cli package runs python-werkzeug library with root level permissions.
Weakness: CWE-77
Which versions are affected by CVE-2018-14649?
It affects 5 products.
Linux distribution packages (2)
ceph-iscsi-cli Red Hat:ceph_storage:2::el7 | All versions | 0:2.0-7.el7cp |
ceph-iscsi-cli Red Hat:ceph_storage:3::el7 | All versions | 0:2.7-7.el7cp |
Products include Redhat Ceph-Iscsi-Cli, Redhat Ceph Storage, Redhat Enterprise Linux Desktop, Redhat Enterprise Linux Server, Redhat Enterprise Linux Workstation.
How do I fix CVE-2018-14649?
Apply the vendor's patch.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2018-14649 being exploited?
There is no known exploitation of CVE-2018-14649 in the wild and no public exploit code.
Sources
Also known as GHSA-vq9p-965j-5xf8, RHSA-2018:2837, RHSA-2018:2838.