CVE-2021-42342 File upload in n/a
Attackers can tunnel untrusted environment variables into CGI scripts via the file upload filter, potentially leading to code execution.
- 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-2021-42342?
CVE-2021-42342 is a critical vulnerability in n/a, published on 14 Oct 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An issue was discovered in GoAhead 4.x and 5.x before 5.1.5. In the file upload filter, user form variables can be passed to CGI scripts without being prefixed with the CGI prefix. This permits tunneling untrusted environment variables into vulnerable CGI scripts.
Weakness: CWE-434
Which versions are affected by CVE-2021-42342?
It affects 1 product.
Products include Embedthis Goahead.
How do I fix CVE-2021-42342?
No fix has been published for CVE-2021-42342 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-42342 being exploited?
There is no known exploitation of CVE-2021-42342 in the wild and no public exploit code.
Public exploit code: 2 proofs of concept on GitHub.
Other vulnerabilities in n/a
Sources
Also known as GHSA-xrrx-hrm6-mxr7.