CVE-2017-16935 Missing authorization in n/a
Remote attackers can bypass authentication checks to access sensitive endpoints, allowing them to view user details and modify accounts, including changing admin passwords.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2017-16935?
CVE-2017-16935 is a critical missing authorization vulnerability in n/a, published on 24 Nov 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Ametys before 4.0.3 requires authentication only for URIs containing a /cms/ substring, which allows remote attackers to bypass intended access restrictions via a direct request to /plugins/core-ui/servercomm/messages.xml, as demonstrated by changing the admin password by obtaining account details via a users/search.json request, and then modifying the account via an editUser request.
Weakness: CWE-20
Which versions are affected by CVE-2017-16935?
It affects 1 product.
Products include Ametys Ametys.
How do I fix CVE-2017-16935?
No fix has been published for CVE-2017-16935 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2017-16935 being exploited?
There is no known exploitation of CVE-2017-16935 in the wild and no public exploit code.
Public exploit code: 1 Exploit-DB entry.
Other vulnerabilities in n/a
Sources
Also known as GHSA-4x38-6389-m4h2.