CVE-2021-27857 FatPipe software allows unauthenticated configuration download

High 7.5 Published 15 Dec 2021 Updated 17 Sep 2024

Unauthenticated attackers can download configuration archives from FatPipe WARP, IPVPN, and MPVPN interfaces if they know the hostname.

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-2021-27857?

CVE-2021-27857 is a high-severity missing authorization vulnerability in FatPipe IPVPN, published on 15 Dec 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A missing authorization vulnerability in the web management interface of FatPipe WARP, IPVPN, and MPVPN software prior to versions 10.1.2r60p91 and 10.2.2r42 allows a remote, unauthenticated attacker to download a configuration archive. The attacker needs to know or correctly guess the hostname of the target system since the hostname is used as part of the configuration archive file name. Older versions of FatPipe software may also be vulnerable. The FatPipe advisory identifier for this vulnerability is FPSA003.

Weakness: CWE-862

Which versions are affected by CVE-2021-27857?

It affects 3 products.

Products include Fatpipeinc Ipvpn Firmware, Fatpipeinc Mpvpn Firmware, Fatpipeinc Warp Firmware.

How do I fix CVE-2021-27857?

No fix has been published for CVE-2021-27857 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-2021-27857 being exploited?

There is no known exploitation of CVE-2021-27857 in the wild and no public exploit code.

Sources

Also known as GHSA-wgcg-wpg9-jq43.