CVE-2019-19270 Vulnerability Analysis & Exploit Details

CVE-2019-19270
Vulnerability Scoring

7.5
/10
Very High Risk

Highly exploitable, CVE-2019-19270 poses a critical security risk that could lead to severe breaches.

Attack Complexity Details

  • Attack Complexity: Low
    Exploits can be performed without significant complexity or special conditions.
  • Attack Vector: Network
    Vulnerability is exploitable over a network without physical access.
  • Privileges Required: None
    No privileges are required for exploitation.
  • Scope: Unchanged
    Exploit remains within the originally vulnerable component.
  • User Interaction: None
    No user interaction is necessary for exploitation.

CVE-2019-19270 Details

Status: Modified

Last updated: 🕟 21 Nov 2024, 04:34 UTC
Originally published on: 🕓 26 Nov 2019, 04:15 UTC

Time between publication and last update: 1822 days

CVSS Release: version 3

CVSS3 Source

nvd@nist.gov

CVSS3 Type

Primary

CVSS3 Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

CVE-2019-19270 Vulnerability Summary

CVE-2019-19270: 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once for issuer) prevents some valid CRLs from being taken into account, and can allow clients whose certificates have been revoked to proceed with a connection to the server.

Assessing the Risk of CVE-2019-19270

Access Complexity Graph

The exploitability of CVE-2019-19270 depends on two key factors: attack complexity (the level of effort required to execute an exploit) and privileges required (the access level an attacker needs).

Exploitability Analysis for CVE-2019-19270

With low attack complexity and no required privileges, CVE-2019-19270 is an easy target for cybercriminals. Organizations should prioritize immediate mitigation measures to prevent unauthorized access and data breaches.

Understanding AC and PR

A lower complexity and fewer privilege requirements make exploitation easier. Security teams should evaluate these aspects to determine the urgency of mitigation strategies, such as patch management and access control policies.

Attack Complexity (AC) measures the difficulty in executing an exploit. A high AC means that specific conditions must be met, making an attack more challenging, while a low AC means the vulnerability can be exploited with minimal effort.

Privileges Required (PR) determine the level of system access necessary for an attack. Vulnerabilities requiring no privileges are more accessible to attackers, whereas high privilege requirements limit exploitation to authorized users with elevated access.

CVSS Score Breakdown Chart

Above is the CVSS Sub-score Breakdown for CVE-2019-19270, illustrating how Base, Impact, and Exploitability factors combine to form the overall severity rating. A higher sub-score typically indicates a more severe or easier-to-exploit vulnerability.

CIA Impact Analysis

Below is the Impact Analysis for CVE-2019-19270, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.

  • Confidentiality: None
    CVE-2019-19270 has no significant impact on data confidentiality.
  • Integrity: High
    CVE-2019-19270 could allow unauthorized modifications to data, potentially affecting system reliability and trust.
  • Availability: None
    CVE-2019-19270 does not impact system availability.

Exploit Prediction Scoring System (EPSS)

The EPSS score estimates the probability that this vulnerability will be exploited in the near future.

EPSS Score: 0.14% (probability of exploit)

EPSS Percentile: 51.15% (lower percentile = lower relative risk)
This vulnerability is less risky than approximately 48.85% of others.

CVE-2019-19270 References

External References

CWE Common Weakness Enumeration

CWE-295

CAPEC Common Attack Pattern Enumeration and Classification

  • Creating a Rogue Certification Authority Certificate CAPEC-459 An adversary exploits a weakness resulting from using a hashing algorithm with weak collision resistance to generate certificate signing requests (CSR) that contain collision blocks in their "to be signed" parts. The adversary submits one CSR to be signed by a trusted certificate authority then uses the signed blob to make a second certificate appear signed by said certificate authority. Due to the hash collision, both certificates, though different, hash to the same value and so the signed blob works just as well in the second certificate. The net effect is that the adversary's second X.509 certificate, which the Certification Authority has never seen, is now signed and validated by that Certification Authority.
  • Signature Spoofing by Improper Validation CAPEC-475 An adversary exploits a cryptographic weakness in the signature verification algorithm implementation to generate a valid signature without knowing the key.

Vulnerable Configurations

  • cpe:2.3:a:proftpd:proftpd:1.2.0:*:*:*:*:*:*:*
    cpe:2.3:a:proftpd:proftpd:1.2.0:*:*:*:*:*:*:*
  • cpe:2.3:a:proftpd:proftpd:1.2.0:rc1:*:*:*:*:*:*
    cpe:2.3:a:proftpd:proftpd:1.2.0:rc1:*:*:*:*:*:*
  • cpe:2.3:a:proftpd:proftpd:1.2.0:rc2:*:*:*:*:*:*
    cpe:2.3:a:proftpd:proftpd:1.2.0:rc2:*:*:*:*:*:*
  • cpe:2.3:a:proftpd:proftpd:1.2.0:rc3:*:*:*:*:*:*
    cpe:2.3:a:proftpd:proftpd:1.2.0:rc3:*:*:*:*:*:*
  • cpe:2.3:a:proftpd:proftpd:1.2.0:pre10:*:*:*:*:*:*
    cpe:2.3:a:proftpd:proftpd:1.2.0:pre10:*:*:*:*:*:*
  • cpe:2.3:a:proftpd:proftpd:1.2.0:pre9:*:*:*:*:*:*
    cpe:2.3:a:proftpd:proftpd:1.2.0:pre9:*:*:*:*:*:*
  • cpe:2.3:a:proftpd:proftpd:1.2.1:*:*:*:*:*:*:*
    cpe:2.3:a:proftpd:proftpd:1.2.1:*:*:*:*:*:*:*
  • cpe:2.3:a:proftpd:proftpd:1.2.2:*:*:*:*:*:*:*
    cpe:2.3:a:proftpd:proftpd:1.2.2:*:*:*:*:*:*:*
  • cpe:2.3:a:proftpd:proftpd:1.2.2:rc1:*:*:*:*:*:*
    cpe:2.3:a:proftpd:proftpd:1.2.2:rc1:*:*:*:*:*:*
  • cpe:2.3:a:proftpd:proftpd:1.2.2:rc2:*:*:*:*:*:*
    cpe:2.3:a:proftpd:proftpd:1.2.2:rc2:*:*:*:*:*:*
  • cpe:2.3:a:proftpd:proftpd:1.2.2:rc3:*:*:*:*:*:*
    cpe:2.3:a:proftpd:proftpd:1.2.2:rc3:*:*:*:*:*:*
  • cpe:2.3:a:proftpd:proftpd:1.2.3:*:*:*:*:*:*:*
    cpe:2.3:a:proftpd:proftpd:1.2.3:*:*:*:*:*:*:*
  • cpe:2.3:a:proftpd:proftpd:1.2.4:*:*:*:*:*:*:*
    cpe:2.3:a:proftpd:proftpd:1.2.4:*:*:*:*:*:*:*
  • cpe:2.3:a:proftpd:proftpd:1.2.5:*:*:*:*:*:*:*
    cpe:2.3:a:proftpd:proftpd:1.2.5:*:*:*:*:*:*:*
  • cpe:2.3:a:proftpd:proftpd:1.2.5:rc1:*:*:*:*:*:*
    cpe:2.3:a:proftpd:proftpd:1.2.5:rc1:*:*:*:*:*:*
  • cpe:2.3:a:proftpd:proftpd:1.2.5:rc2:*:*:*:*:*:*
    cpe:2.3:a:proftpd:proftpd:1.2.5:rc2:*:*:*:*:*:*
  • cpe:2.3:a:proftpd:proftpd:1.2.5:rc3:*:*:*:*:*:*
    cpe:2.3:a:proftpd:proftpd:1.2.5:rc3:*:*:*:*:*:*
  • cpe:2.3:a:proftpd:proftpd:1.2.6:*:*:*:*:*:*:*
    cpe:2.3:a:proftpd:proftpd:1.2.6:*:*:*:*:*:*:*
  • cpe:2.3:a:proftpd:proftpd:1.2.6:rc1:*:*:*:*:*:*
    cpe:2.3:a:proftpd:proftpd:1.2.6:rc1:*:*:*:*:*:*
  • cpe:2.3:a:proftpd:proftpd:1.2.6:rc2:*:*:*:*:*:*
    cpe:2.3:a:proftpd:proftpd:1.2.6:rc2:*:*:*:*:*:*
  • cpe:2.3:a:proftpd:proftpd:1.2.7:*:*:*:*:*:*:*
    cpe:2.3:a:proftpd:proftpd:1.2.7:*:*:*:*:*:*:*
  • cpe:2.3:a:proftpd:proftpd:1.2.7:rc1:*:*:*:*:*:*
    cpe:2.3:a:proftpd:proftpd:1.2.7:rc1:*:*:*:*:*:*
  • cpe:2.3:a:proftpd:proftpd:1.2.7:rc2:*:*:*:*:*:*
    cpe:2.3:a:proftpd:proftpd:1.2.7:rc2:*:*:*:*:*:*
  • cpe:2.3:a:proftpd:proftpd:1.2.7:rc3:*:*:*:*:*:*
    cpe:2.3:a:proftpd:proftpd:1.2.7:rc3:*:*:*:*:*:*
  • cpe:2.3:a:proftpd:proftpd:1.2.8:*:*:*:*:*:*:*
    cpe:2.3:a:proftpd:proftpd:1.2.8:*:*:*:*:*:*:*
  • cpe:2.3:a:proftpd:proftpd:1.2.8:rc1:*:*:*:*:*:*
    cpe:2.3:a:proftpd:proftpd:1.2.8:rc1:*:*:*:*:*:*
  • cpe:2.3:a:proftpd:proftpd:1.2.8:rc2:*:*:*:*:*:*
    cpe:2.3:a:proftpd:proftpd:1.2.8:rc2:*:*:*:*:*:*
  • cpe:2.3:a:proftpd:proftpd:1.2.9:*:*:*:*:*:*:*
    cpe:2.3:a:proftpd:proftpd:1.2.9:*:*:*:*:*:*:*
  • cpe:2.3:a:proftpd:proftpd:1.2.9:rc1:*:*:*:*:*:*
    cpe:2.3:a:proftpd:proftpd:1.2.9:rc1:*:*:*:*:*:*
  • cpe:2.3:a:proftpd:proftpd:1.2.9:rc2:*:*:*:*:*:*
    cpe:2.3:a:proftpd:proftpd:1.2.9:rc2:*:*:*:*:*:*
  • cpe:2.3:a:proftpd:proftpd:1.2.9:rc3:*:*:*:*:*:*
    cpe:2.3:a:proftpd:proftpd:1.2.9:rc3:*:*:*:*:*:*
  • cpe:2.3:a:proftpd:proftpd:1.2.10:*:*:*:*:*:*:*
    cpe:2.3:a:proftpd:proftpd:1.2.10:*:*:*:*:*:*:*
  • cpe:2.3:a:proftpd:proftpd:1.2.10:rc1:*:*:*:*:*:*
    cpe:2.3:a:proftpd:proftpd:1.2.10:rc1:*:*:*:*:*:*
  • cpe:2.3:a:proftpd:proftpd:1.2.10:rc2:*:*:*:*:*:*
    cpe:2.3:a:proftpd:proftpd:1.2.10:rc2:*:*:*:*:*:*
  • cpe:2.3:a:proftpd:proftpd:1.2.10:rc3:*:*:*:*:*:*
    cpe:2.3:a:proftpd:proftpd:1.2.10:rc3:*:*:*:*:*:*
  • cpe:2.3:a:proftpd:proftpd:1.3.0:*:*:*:*:*:*:*
    cpe:2.3:a:proftpd:proftpd:1.3.0:*:*:*:*:*:*:*
  • cpe:2.3:a:proftpd:proftpd:1.3.0:a:*:*:*:*:*:*
    cpe:2.3:a:proftpd:proftpd:1.3.0:a:*:*:*:*:*:*
  • cpe:2.3:a:proftpd:proftpd:1.3.0:rc1:*:*:*:*:*:*
    cpe:2.3:a:proftpd:proftpd:1.3.0:rc1:*:*:*:*:*:*
  • cpe:2.3:a:proftpd:proftpd:1.3.0:rc2:*:*:*:*:*:*
    cpe:2.3:a:proftpd:proftpd:1.3.0:rc2:*:*:*:*:*:*
  • cpe:2.3:a:proftpd:proftpd:1.3.0:rc3:*:*:*:*:*:*
    cpe:2.3:a:proftpd:proftpd:1.3.0:rc3:*:*:*:*:*:*
  • cpe:2.3:a:proftpd:proftpd:1.3.0:rc4:*:*:*:*:*:*
    cpe:2.3:a:proftpd:proftpd:1.3.0:rc4:*:*:*:*:*:*
  • cpe:2.3:a:proftpd:proftpd:1.3.0:rc5:*:*:*:*:*:*
    cpe:2.3:a:proftpd:proftpd:1.3.0:rc5:*:*:*:*:*:*
  • cpe:2.3:a:proftpd:proftpd:1.3.1:*:*:*:*:*:*:*
    cpe:2.3:a:proftpd:proftpd:1.3.1:*:*:*:*:*:*:*
  • cpe:2.3:a:proftpd:proftpd:1.3.1:rc1:*:*:*:*:*:*
    cpe:2.3:a:proftpd:proftpd:1.3.1:rc1:*:*:*:*:*:*
  • cpe:2.3:a:proftpd:proftpd:1.3.1:rc2:*:*:*:*:*:*
    cpe:2.3:a:proftpd:proftpd:1.3.1:rc2:*:*:*:*:*:*
  • cpe:2.3:a:proftpd:proftpd:1.3.1:rc3:*:*:*:*:*:*
    cpe:2.3:a:proftpd:proftpd:1.3.1:rc3:*:*:*:*:*:*
  • cpe:2.3:a:proftpd:proftpd:1.3.2:*:*:*:*:*:*:*
    cpe:2.3:a:proftpd:proftpd:1.3.2:*:*:*:*:*:*:*
  • cpe:2.3:a:proftpd:proftpd:1.3.2:a:*:*:*:*:*:*
    cpe:2.3:a:proftpd:proftpd:1.3.2:a:*:*:*:*:*:*
  • cpe:2.3:a:proftpd:proftpd:1.3.2:b:*:*:*:*:*:*
    cpe:2.3:a:proftpd:proftpd:1.3.2:b:*:*:*:*:*:*
  • cpe:2.3:a:proftpd:proftpd:1.3.2:c:*:*:*:*:*:*
    cpe:2.3:a:proftpd:proftpd:1.3.2:c:*:*:*:*:*:*
  • cpe:2.3:a:proftpd:proftpd:1.3.2:d:*:*:*:*:*:*
    cpe:2.3:a:proftpd:proftpd:1.3.2:d:*:*:*:*:*:*
  • cpe:2.3:a:proftpd:proftpd:1.3.2:e:*:*:*:*:*:*
    cpe:2.3:a:proftpd:proftpd:1.3.2:e:*:*:*:*:*:*
  • cpe:2.3:a:proftpd:proftpd:1.3.2:rc1:*:*:*:*:*:*
    cpe:2.3:a:proftpd:proftpd:1.3.2:rc1:*:*:*:*:*:*
  • cpe:2.3:a:proftpd:proftpd:1.3.2:rc2:*:*:*:*:*:*
    cpe:2.3:a:proftpd:proftpd:1.3.2:rc2:*:*:*:*:*:*
  • cpe:2.3:a:proftpd:proftpd:1.3.2:rc3:*:*:*:*:*:*
    cpe:2.3:a:proftpd:proftpd:1.3.2:rc3:*:*:*:*:*:*
  • cpe:2.3:a:proftpd:proftpd:1.3.2:rc4:*:*:*:*:*:*
    cpe:2.3:a:proftpd:proftpd:1.3.2:rc4:*:*:*:*:*:*
  • cpe:2.3:a:proftpd:proftpd:1.3.3:*:*:*:*:*:*:*
    cpe:2.3:a:proftpd:proftpd:1.3.3:*:*:*:*:*:*:*
  • cpe:2.3:a:proftpd:proftpd:1.3.3:a:*:*:*:*:*:*
    cpe:2.3:a:proftpd:proftpd:1.3.3:a:*:*:*:*:*:*
  • cpe:2.3:a:proftpd:proftpd:1.3.3:b:*:*:*:*:*:*
    cpe:2.3:a:proftpd:proftpd:1.3.3:b:*:*:*:*:*:*
  • cpe:2.3:a:proftpd:proftpd:1.3.3:c:*:*:*:*:*:*
    cpe:2.3:a:proftpd:proftpd:1.3.3:c:*:*:*:*:*:*
  • cpe:2.3:a:proftpd:proftpd:1.3.3:rc1:*:*:*:*:*:*
    cpe:2.3:a:proftpd:proftpd:1.3.3:rc1:*:*:*:*:*:*
  • cpe:2.3:a:proftpd:proftpd:1.3.3:rc2:*:*:*:*:*:*
    cpe:2.3:a:proftpd:proftpd:1.3.3:rc2:*:*:*:*:*:*
  • cpe:2.3:a:proftpd:proftpd:1.3.3:rc3:*:*:*:*:*:*
    cpe:2.3:a:proftpd:proftpd:1.3.3:rc3:*:*:*:*:*:*
  • cpe:2.3:a:proftpd:proftpd:1.3.3:rc4:*:*:*:*:*:*
    cpe:2.3:a:proftpd:proftpd:1.3.3:rc4:*:*:*:*:*:*
  • cpe:2.3:a:proftpd:proftpd:1.3.4:*:*:*:*:*:*:*
    cpe:2.3:a:proftpd:proftpd:1.3.4:*:*:*:*:*:*:*
  • cpe:2.3:a:proftpd:proftpd:1.3.4:a:*:*:*:*:*:*
    cpe:2.3:a:proftpd:proftpd:1.3.4:a:*:*:*:*:*:*
  • cpe:2.3:a:proftpd:proftpd:1.3.4:b:*:*:*:*:*:*
    cpe:2.3:a:proftpd:proftpd:1.3.4:b:*:*:*:*:*:*
  • cpe:2.3:a:proftpd:proftpd:1.3.4:c:*:*:*:*:*:*
    cpe:2.3:a:proftpd:proftpd:1.3.4:c:*:*:*:*:*:*
  • cpe:2.3:a:proftpd:proftpd:1.3.4:d:*:*:*:*:*:*
    cpe:2.3:a:proftpd:proftpd:1.3.4:d:*:*:*:*:*:*
  • cpe:2.3:a:proftpd:proftpd:1.3.4:rc1:*:*:*:*:*:*
    cpe:2.3:a:proftpd:proftpd:1.3.4:rc1:*:*:*:*:*:*
  • cpe:2.3:a:proftpd:proftpd:1.3.4:rc2:*:*:*:*:*:*
    cpe:2.3:a:proftpd:proftpd:1.3.4:rc2:*:*:*:*:*:*
  • cpe:2.3:a:proftpd:proftpd:1.3.4:rc3:*:*:*:*:*:*
    cpe:2.3:a:proftpd:proftpd:1.3.4:rc3:*:*:*:*:*:*
  • cpe:2.3:a:proftpd:proftpd:1.3.5:-:*:*:*:*:*:*
    cpe:2.3:a:proftpd:proftpd:1.3.5:-:*:*:*:*:*:*
  • cpe:2.3:a:proftpd:proftpd:1.3.6:-:*:*:*:*:*:*
    cpe:2.3:a:proftpd:proftpd:1.3.6:-:*:*:*:*:*:*
  • cpe:2.3:a:proftpd:proftpd:1.3.6:alpha:*:*:*:*:*:*
    cpe:2.3:a:proftpd:proftpd:1.3.6:alpha:*:*:*:*:*:*
  • cpe:2.3:a:proftpd:proftpd:1.3.6:beta:*:*:*:*:*:*
    cpe:2.3:a:proftpd:proftpd:1.3.6:beta:*:*:*:*:*:*
  • cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*
    cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*
  • cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*
    cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*

Protect Your Infrastructure against CVE-2019-19270: Combat Critical CVE Threats

Stay updated with real-time CVE vulnerabilities and take action to secure your systems. Enhance your cybersecurity posture with the latest threat intelligence and mitigation techniques. Develop the skills necessary to defend against CVEs and secure critical infrastructures. Join the top cybersecurity professionals safeguarding today's infrastructures.

Other 5 Recently Published CVEs Vulnerabilities

  • CVE-2025-4952 – Tampering of the registry entries might have led to preventing the ESET security products from starting correctly on the next system startup or to ...
  • CVE-2025-36249 – IBM Jazz for Service Management 1.1.3.0 through 1.1.3.25 does not set the secure attribute on authorization tokens or session cookies. Attackers ma...
  • CVE-2025-33003 – IBM InfoSphere Information Server 11.7.0.0 through 11.7.1.6 could allow a non-root user to gain higher privileges/capabilities within the scope of ...
  • CVE-2024-13992 – Nagios XI versions prior to < 2024R1.1 is vulnerable to a cross-site scripting (XSS) when a user visits the "missing page" (404) page after followi...
  • CVE-2025-64368 – Cross-Site Request Forgery (CSRF) vulnerability in Mikado-Themes Bard bardwp allows Cross Site Request Forgery.This issue affects Bard: from n/a th...