CVE-2019-11875 Missing authorization in n/a
Attackers with valid accounts can modify client files to bypass server-side permission checks, allowing them to overwrite processes and execute malicious code.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2019-11875?
CVE-2019-11875 is a high-severity missing authorization vulnerability in n/a, published on 24 May 2019. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
In AutomateAppCore.dll in Blue Prism Robotic Process Automation 6.4.0.8445, a vulnerability in access control can be exploited to escalate privileges. The vulnerability allows for abusing the application for fraud or unauthorized access to certain information. The attack requires a valid user account to connect to the Blue Prism server, but the roles associated to this account are not required to have any permissions. First of all, the application files are modified to grant full permissions on the client side. In a test environment (or his own instance of the software) an attacker is able to grant himself full privileges also on the server side. He can then, for instance, create a process with malicious behavior and export it to disk. With the modified client, it is possible to import the exported file as a release and overwrite any existing process in the database. Eventually, the bots execute the malicious process. The server does not check the user's permissions for the aforementioned actions, such that a modification of the client software enables this kind of attack. Possible scenarios may involve changing bank accounts or setting passwords.
Which versions are affected by CVE-2019-11875?
It affects 1 product.
Products include Blueprism Robotic Process Automation.
How do I fix CVE-2019-11875?
No fix has been published for CVE-2019-11875 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-2019-11875 being exploited?
There is no known exploitation of CVE-2019-11875 in the wild and no public exploit code.
Sources
Also known as GHSA-g23q-cx53-2c4r.