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GHSA-ffp2-8p2h-4m5j
No affected components available
Impact
Password Pusher comes with a configurable rate limiter. In versions prior to v1.49.0, the rate limiter could be bypassed by forging proxy headers allowing bad actors to send unlimited traffic to the site potentially causing a denial of service.
Additionally, with the ability to bypass rate limiting, it also allows attackers to more easily execute brute force attacks.
Patches
In v1.49.0, a fix was implemented to only authorize proxies on local IPs which resolves this issue.
If you are running a remote proxy, please see this documentation on how to authorize the IP address of your remote proxy.
Workarounds
It is highly suggested to upgrade to at least v1.49.0 to mitigate this risk.
If for some reason you cannot immediately upgrade, the alternative is that you can add rules to your proxy and/or firewall to not accept external proxy headers such as X-Forwarded-* from clients.
References
The new settings are configurable to authorize remote proxies.
Credits
Thank you to Positive Technologies for reporting and working with me to bring this CVE to the community with the associated fix.
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. No user interaction is needed for the attacker to exploit this vulnerability. The impact is confined to the system where the vulnerability exists. There is a low impact on the availability of the system.
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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