CVE-2021-27341 Path traversal in n/a

Q: Is CVE-2021-27341 being exploited?

There is no known exploitation of CVE-2021-27341 in the wild and no public exploit code.

Q: How do I fix CVE-2021-27341?

No fix has been published for CVE-2021-27341 yet. Limit exposure of the affected software until one is available.

Critical 9.8 Published 16 Sep 2021 Updated 3 Aug 2024

Attackers can read arbitrary local files via the filename parameter in DownloadWindow.php, exposing sensitive data.

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-2021-27341?

CVE-2021-27341 is a critical path traversal vulnerability in Os4ed Opensis, published on 16 Sep 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

OpenSIS Community Edition version <= 7.6 is affected by a local file inclusion vulnerability in DownloadWindow.php via the "filename" parameter.

Weakness: CWE-22

Which versions are affected by CVE-2021-27341?

It affects 1 product.

Products include Os4ed Opensis.

How do I fix CVE-2021-27341?

No fix has been published for CVE-2021-27341 yet. Limit exposure of the affected software until one is available.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2021-27341 being exploited?

There is no known exploitation of CVE-2021-27341 in the wild and no public exploit code.

All Os4ed Opensis vulnerabilities

Sources

Also known as GHSA-gwp7-fg46-5fgw.