CVE-2015-1856 OpenStack Swift Unauthorized delete of versioned Swift object
Authenticated users can delete the latest version of an object in OpenStack Swift when versioning is enabled, leading to unauthorized data modification.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2015-1856?
CVE-2015-1856 is a medium-severity missing authorization vulnerability in Canonical Ubuntu Linux, published on 17 Apr 2015. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
OpenStack Object Storage (Swift) before 2.3.0, when allow_version is configured, allows remote authenticated users to delete the latest version of an object by leveraging listing access to the x-versions-location container.
Weakness: CWE-264
Which versions are affected by CVE-2015-1856?
3 open source packages ship an affected version, including swift. It affects 2 products.
| Package | Affected | Fixed in |
|---|---|---|
swift PyPI | All versions | 2.3.0 |
swift PyPI | All versions | 2.3.0 |
swift PyPI | All versions | 2.3.0 |
Linux distribution packages (18)
openstack-swift Red Hat:openstack:5::el6 | All versions | 0:1.13.1-6.el6ost |
openstack-swift-account Red Hat:openstack:5::el6 | All versions | 0:1.13.1-6.el6ost |
openstack-swift-container Red Hat:openstack:5::el6 | All versions | 0:1.13.1-6.el6ost |
openstack-swift-doc Red Hat:openstack:5::el6 | All versions | 0:1.13.1-6.el6ost |
openstack-swift-object Red Hat:openstack:5::el6 | All versions | 0:1.13.1-6.el6ost |
openstack-swift-proxy Red Hat:openstack:5::el6 | All versions | 0:1.13.1-6.el6ost |
openstack-swift Red Hat:openstack:5::el7 | All versions | 0:1.13.1-5.el7ost |
openstack-swift-account Red Hat:openstack:5::el7 | All versions | 0:1.13.1-5.el7ost |
openstack-swift-container Red Hat:openstack:5::el7 | All versions | 0:1.13.1-5.el7ost |
openstack-swift-doc Red Hat:openstack:5::el7 | All versions | 0:1.13.1-5.el7ost |
openstack-swift-object Red Hat:openstack:5::el7 | All versions | 0:1.13.1-5.el7ost |
openstack-swift-proxy Red Hat:openstack:5::el7 | All versions | 0:1.13.1-5.el7ost |
openstack-swift Red Hat:openstack:6::el7 | All versions | 0:2.2.0-4.el7ost |
openstack-swift-account Red Hat:openstack:6::el7 | All versions | 0:2.2.0-4.el7ost |
openstack-swift-container Red Hat:openstack:6::el7 | All versions | 0:2.2.0-4.el7ost |
openstack-swift-doc Red Hat:openstack:6::el7 | All versions | 0:2.2.0-4.el7ost |
openstack-swift-object Red Hat:openstack:6::el7 | All versions | 0:2.2.0-4.el7ost |
openstack-swift-proxy Red Hat:openstack:6::el7 | All versions | 0:2.2.0-4.el7ost |
Products include Canonical Ubuntu Linux, Openstack Swift.
How do I fix CVE-2015-1856?
Upgrade swift to 2.3.0 or later.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2015-1856 being exploited?
There is no known exploitation of CVE-2015-1856 in the wild and no public exploit code.
Other vulnerabilities in Canonical Ubuntu Linux
Sources
Also known as DEBIAN-CVE-2015-1856, GHSA-cc77-5vw4-7pwg, PYSEC-2026-931, RHSA-2015:1681, RHSA-2015:1684, UBUNTU-CVE-2015-1856.