CVE-2021-33577 Auth bypass in n/a
Attackers can bypass AS2 message sender authentication requirements by altering the Content-Type header to text/plain.
- 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-2021-33577?
CVE-2021-33577 is a medium-severity authentication bypass vulnerability in n/a, published on 18 Jun 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 Cleo LexiCom 5.5.0.0. The requirement for the sender of an AS2 message to identify themselves (via encryption and signing of the message) can be bypassed by changing the Content-Type of the message to text/plain.
Which versions are affected by CVE-2021-33577?
It affects 1 product.
Products include Cleo Lexicom.
How do I fix CVE-2021-33577?
No fix has been published for CVE-2021-33577 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-2021-33577 being exploited?
There is no known exploitation of CVE-2021-33577 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-2c7q-mc2r-gx7m.