CVE-2021-42338 4MOSAn GCB Doctor - Improper Authorization
Unauthenticated attackers can bypass login via cookie injection to execute arbitrary code and escalate privileges in GCB Doctor.
- 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-2021-42338?
CVE-2021-42338 is a critical authentication bypass vulnerability in 4MOSAn GCB Doctor, published on 19 Nov 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
4MOSAn GCB Doctor’s login page has improper validation of Cookie, which allows an unauthenticated remote attacker to bypass authentication by code injection in cookie, and arbitrarily manipulate the system or interrupt services by upload and execution of arbitrary files.
Which versions are affected by CVE-2021-42338?
It affects 1 product.
Products include 4mosan Gcb Doctor.
How do I fix CVE-2021-42338?
No fix has been published for CVE-2021-42338 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2021-42338 being exploited?
There is no known exploitation of CVE-2021-42338 in the wild and no public exploit code.
Other vulnerabilities in 4MOSAn GCB Doctor
Sources
Also known as GHSA-pwgf-2vfp-fh6c.