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GHSA-hfj7-542q-8fvv
No affected components available
Summary
An attacker can forge a request to redirect an authenticated user to any arbitrary website.
Details
On the login page, we have a redirect field which is the location where the server will redirect the user. This URI is not verified, and can be an arbitrary URI.
Paired with a parameter pollution, we can hide our malicious URI (ex: https://dns.com/?param1=im_hidden_if_theres_lot_of_args?param1=bbb).
PoC
https://diracx-cert.app.cern.ch/auth?redirect=https://ipcim.com/en/where/?dsdsd=qsqsfsjfnsfniizaeiaapzqlalkqkaizqqijsjaopmqmxna?redirect=https://diracx-cert-app.cern.ch/auth
This POC can leak user's position.
Impact
This could be used for phishing and extracting new data (such as redirecting to a new "log in" page, and asking users to reenter credentials).
The vulnerability can be exploited over the network without needing physical access. It is easy for an attacker to exploit this vulnerability. An attacker does not need any special privileges or access rights. The attacker needs the user to perform some action, like clicking a link. The vulnerability can affect other systems as well, not just the initial system. There is a low impact on the confidentiality of the information.
Exploitation attempts have been detected. Elevated vigilance and prompt remediation are advised.
The exploit probability is very low. The vulnerability is unlikely to be exploited in the next 30 days.
We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.
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