SB2016040501 - Multiple vulnerabilities in ProFTPD 

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Main Vulnerability Database SB2016040501

SB2016040501 - Multiple vulnerabilities in ProFTPD

Published: April 5, 2016 Updated: August 9, 2020

Security Bulletin ID SB2016040501
Severity
Medium
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 secuirty vulnerabilities.


1) Improper Certificate Validation (CVE-ID: CVE-2019-19270)

The vulnerability allows a remote non-authenticated attacker to manipulate data.

An issue was discovered in tls_verify_crl in ProFTPD through 1.3.6b. Failure to check for the appropriate field of a CRL entry (checking twice for subject, rather than once for subject and once for issuer) prevents some valid CRLs from being taken into account, and can allow clients whose certificates have been revoked to proceed with a connection to the server.


2) Security Features (CVE-ID: CVE-2016-3125)

The vulnerability allows a remote non-authenticated attacker to gain access to sensitive information.

The mod_tls module in ProFTPD before 1.3.5b and 1.3.6 before 1.3.6rc2 does not properly handle the TLSDHParamFile directive, which might cause a weaker than intended Diffie-Hellman (DH) key to be used and consequently allow attackers to have unspecified impact via unknown vectors.


Remediation

Install update from vendor's website.

References