What is CVE-2016-9579?A high-severity flaw in Ceph Storage, explained.
CVE-2016-9579 is a high-severity flaw (CVSS 7.5) in Ceph Storage from Red Hat, published on 1 August 2018. It is not on the list of flaws known to be exploited today. The latest forecast puts its chance of use in the next 30 days at 4.3%. If you run an affected version, plan in the vendor’s fix.
Published 1 August 2018. Record last updated 12 February 2023. We keep this page's data up to date.
What is CVE-2016-9579? In plain terms.
It can be attacked from anywhere on the internet without logging in, and nobody has to click anything. If it works, the attacker can take it offline.
A flaw was found in the way Ceph Object Gateway would process cross-origin HTTP requests if the CORS policy was set to allow origin on a bucket. A remote unauthenticated attacker could use this flaw to cause denial of service by sending a specially-crafted cross-origin HTTP request. Ceph branches 1.3.x and 2.x are affected.
What kind of flaw is it?
- CWE-20Improper Input Validation
How an attack on it works
Read straight from its severity rating, translated out of the shorthand.
- Where an attacker can beAnywhere on the internet
- How hard it is to pull offEasy: no special conditions
- Login needed firstNo login needed
- Does someone have to clickNo, nobody has to do anything
- What an attacker getsCan take it offline
Severity vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Is CVE-2016-9579 being exploited? Not that we know of.
It is not on the list of flaws known to be exploited today. The latest forecast puts the chance of it being used in the next 30 days at 4.3%. That can change at any time, which is why we keep watching.
Timeline
- Published
- Record last updated
- Exploit likelihood fell
CVE-2016-9579 scores 52. Action: Plan remediation.
We keep the score of every published flaw up to date as the evidence changes. Four things go into the score, and evidence that criminals are actually using it counts most. In order:
- Evidence it is being exploitedBiggest factor
- How severe it isStrong factor
- How widely exposed it isSmaller factor
- Threat activity around itSmaller factor
85 and above is Critical. Anything confirmed as exploited is always marked for an emergency patch, whatever its score.
When CVE-2016-9579 matches software you track, it lands in your list with its score and the reasons behind it.
See your own ranked list →Who is affected by CVE-2016-9579? 8 products.
The published record lists 8 products from 2 vendors. If you run one of these, check your version, then go to the fix below.
- Application
Ceph Storage
by Red Hat
Affected versions1.32.0 - Application
Ceph Storage Mon
by Red Hat
Affected versions1.32 - Application
Ceph Storage Osd
by Red Hat
Affected versions1.32 - Operating system
Ubuntu Linux
by Canonical
Affected versions14.0416.04 - Operating system
Enterprise Linux
by Red Hat
Affected versions7.0 - Operating system
Enterprise Linux Desktop
by Red Hat
Affected versions7.0 - Operating system
Enterprise Linux Server
by Red Hat
Affected versions7.0 - Operating system
Enterprise Linux Workstation
by Red Hat
Affected versions7.0
How do I fix CVE-2016-9579? Four steps.
- Check whether you run itCompare your versions with the affected products above. Not sure what you run? Precursor Intelligence can work it out from your public website, or you can pick it from a list.
- Apply the vendor’s fixInstall the update named in the vendor’s advisory. We’ve put the advisory first in the list.
- If you can’t patch todayFollow any mitigation the vendor publishes, and limit who can reach the affected system from the internet until the update is in.
- Keep an eye on itTrack the product and we tell you as soon as we spot this flaw on the list of exploited flaws, or a jump in its exploit likelihood.
Does CVE-2016-9579 affect you? We'll keep checking.
Looking flaws up one at a time doesn't scale. Tell us what you run once, and we tell you which flaws matter to you, in what order, and keep watching for new ones.
- Tell us what you runPick your software from a list, or let us work it out from your website.
- We match it to every flawOver 400,000 published flaws, checked against your list.
- Ranked by real-world riskA 0 to 100 score, led by evidence criminals are using it.
- Told as soon as we knowAn alert by email, in the app or by webhook to your own tools.
Free plan, no card needed. Nothing to install.
1 new flaw affects software Acme tracks
A flaw was found in the way Ceph Object Gateway would process cross-origin HTTP requests if the CORS policy was set to allow origin on a bucket. A remote una...
- Matched to
- Ceph Storage on Acme's software list
- What to do
- Plan in the vendor’s update
Sent to the alert recipients Acme chose. Also in the app and to Acme's webhook.
CVE-2016-9579 is a high-severity flaw in Ceph Storage from Red Hat, published on 1 August 2018. It can be attacked from anywhere on the internet without logging in, and nobody has to click anything. If it works, the attacker can take it offline.
It scores 7.5 out of 10 on the CVSS severity scale, which is high. Our risk score for CVE-2016-9579 is 52 out of 100, which is Medium. Its action is "Plan remediation". No sign of exploitation and a low forecast. Patch it in your normal update cycle.
It is not on the list of flaws known to be exploited today. The latest forecast puts the chance of it being used in the next 30 days at 4.3%. That can change at any time, which is why we keep watching.
For Ceph Storage from Red Hat: 1.3, 2.0. The record lists 8 products in all, each with its versions, under "Who is affected" on this page.
Install the update the vendor names in its advisory, linked first under "How do I fix" on this page. If you can't patch today, follow the vendor's mitigation and limit who can reach the affected system from the internet.