CVE-2021-43298 Security feature bypass in goahead
An attacker can brute-force HTTP Basic authentication passwords by exploiting timing side-channels and lack of rate limiting in the GoAhead web server.
- 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-2021-43298?
CVE-2021-43298 is a critical vulnerability in embedthis goahead, published on 25 Jan 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The code that performs password matching when using 'Basic' HTTP authentication does not use a constant-time memcmp and has no rate-limiting. This means that an unauthenticated network attacker can brute-force the HTTP basic password, byte-by-byte, by recording the webserver's response time until the unauthorized (401) response.
Which versions are affected by CVE-2021-43298?
It affects 1 product.
Products include Embedthis Goahead.
How do I fix CVE-2021-43298?
No fix has been published for CVE-2021-43298 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-43298 being exploited?
There is no known exploitation of CVE-2021-43298 in the wild and no public exploit code.
Other vulnerabilities in embedthis goahead
Sources
Also known as GHSA-cfh2-3f5r-4vf9.