CVE-2019-19271 Security feature bypass in n/a
A logic error in ProFTPD's CRL verification allows revoked client certificates to be accepted, bypassing security controls when CRLs are configured.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2019-19271?
CVE-2019-19271 is a high-severity vulnerability in n/a, published on 26 Nov 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An issue was discovered in tls_verify_crl in ProFTPD before 1.3.6. A wrong iteration variable, used when checking a client certificate against CRL entries (installed by a system administrator), can cause some CRL entries to be ignored, and can allow clients whose certificates have been revoked to proceed with a connection to the server.
Weakness: CWE-295
Which versions are affected by CVE-2019-19271?
It affects 1 product.
Products include Proftpd Proftpd.
How do I fix CVE-2019-19271?
Upgrade to a fixed version.
Is CVE-2019-19271 being exploited?
There is no known exploitation of CVE-2019-19271 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as DEBIAN-CVE-2019-19271, GHSA-h7h2-5q94-rr6j, UBUNTU-CVE-2019-19271.