CVE-2009-3767 Vulnerability Analysis & Exploit Details

CVE-2009-3767
Vulnerability Scoring

4.3
/10
Medium Risk

While not critical, CVE-2009-3767 could compromise confidentiality or integrity in certain conditions.

Attack Complexity Details

  • Attack Complexity: Medium
    Attack Complexity Analysis In Progress
  • Attack Vector: Network
    Vulnerability is exploitable over a network without physical access.
  • Privileges Required: None
    No authentication is required for exploitation.
  • Scope:
    Impact is confined to the initially vulnerable component.
  • User Interaction: None
    No user interaction is necessary for exploitation.

CVE-2009-3767 Details

Status: Modified

Last updated: 🕐 21 Nov 2024, 01:08 UTC
Originally published on: 🕢 23 Oct 2009, 19:30 UTC

Time between publication and last update: 5507 days

CVSS Release: version 2

CVE-2009-3767 Vulnerability Summary

CVE-2009-3767: libraries/libldap/tls_o.c in OpenLDAP 2.2 and 2.4, and possibly other versions, when OpenSSL is used, does not properly handle a '\0' character in a domain name in the subject's Common Name (CN) field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority, a related issue to CVE-2009-2408.

Assessing the Risk of CVE-2009-3767

Access Complexity Graph

The exploitability of CVE-2009-3767 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-2009-3767

Moderate complexity but no authentication required makes CVE-2009-3767 a potential risk.

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-2009-3767, 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-2009-3767, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.

  • Confidentiality: None
    CVE-2009-3767 does not compromise confidentiality.
  • Integrity: None
    CVE-2009-3767 does not impact data integrity.
  • Availability: None
    CVE-2009-3767 does not affect 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: 0.375% (probability of exploit)

EPSS Percentile: 72.97% (lower percentile = lower relative risk)
This vulnerability is less risky than approximately 27.03% of others.

CVE-2009-3767 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:openldap:openldap:-:*:*:*:*:*:*:*
    cpe:2.3:a:openldap:openldap:-:*:*:*:*:*:*:*
  • cpe:2.3:a:openldap:openldap:2.0:*:*:*:*:*:*:*
    cpe:2.3:a:openldap:openldap:2.0:*:*:*:*:*:*:*
  • cpe:2.3:a:openldap:openldap:2.3.29:*:*:*:*:*:*:*
    cpe:2.3:a:openldap:openldap:2.3.29:*:*:*:*:*:*:*
  • cpe:2.3:a:openldap:openldap:2.4:*:*:*:*:*:*:*
    cpe:2.3:a:openldap:openldap:2.4:*:*:*:*:*:*:*
  • cpe:2.3:a:openldap:openldap:2.4.6:*:*:*:*:*:*:*
    cpe:2.3:a:openldap:openldap:2.4.6:*:*:*:*:*:*:*
  • cpe:2.3:a:openldap:openldap:2.4.7:*:*:*:*:*:*:*
    cpe:2.3:a:openldap:openldap:2.4.7:*:*:*:*:*:*:*
  • cpe:2.3:a:openldap:openldap:2.4.8:*:*:*:*:*:*:*
    cpe:2.3:a:openldap:openldap:2.4.8:*:*:*:*:*:*:*
  • cpe:2.3:a:openldap:openldap:2.4.9:*:*:*:*:*:*:*
    cpe:2.3:a:openldap:openldap:2.4.9:*:*:*:*:*:*:*
  • cpe:2.3:a:openldap:openldap:2.4.10:*:*:*:*:*:*:*
    cpe:2.3:a:openldap:openldap:2.4.10:*:*:*:*:*:*:*
  • cpe:2.3:a:openldap:openldap:2.4.11:*:*:*:*:*:*:*
    cpe:2.3:a:openldap:openldap:2.4.11:*:*:*:*:*:*:*
  • cpe:2.3:a:openldap:openldap:2.4.12:*:*:*:*:*:*:*
    cpe:2.3:a:openldap:openldap:2.4.12:*:*:*:*:*:*:*
  • cpe:2.3:a:openldap:openldap:2.4.13:*:*:*:*:*:*:*
    cpe:2.3:a:openldap:openldap:2.4.13:*:*:*:*:*:*:*
  • cpe:2.3:a:openldap:openldap:2.4.14:*:*:*:*:*:*:*
    cpe:2.3:a:openldap:openldap:2.4.14:*:*:*:*:*:*:*
  • cpe:2.3:a:openldap:openldap:2.4.15:*:*:*:*:*:*:*
    cpe:2.3:a:openldap:openldap:2.4.15:*:*:*:*:*:*:*
  • cpe:2.3:a:openldap:openldap:2.4.16:*:*:*:*:*:*:*
    cpe:2.3:a:openldap:openldap:2.4.16:*:*:*:*:*:*:*
  • cpe:2.3:a:openldap:openldap:2.4.17:*:*:*:*:*:*:*
    cpe:2.3:a:openldap:openldap:2.4.17:*:*:*:*:*:*:*
  • cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*
    cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:-:*:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:-:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.0:*:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.0:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.0.0:*:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.0.0:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.0.1:*:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.0.1:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.0.2:*:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.0.2:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.0.3:*:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.0.3:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.0.4:*:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.0.4:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.1:*:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.1:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.1.0:*:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.1.0:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.1.1:*:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.1.1:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.1.2:*:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.1.2:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.1.3:*:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.1.3:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.1.4:*:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.1.4:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.1.5:*:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.1.5:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.2:*:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.2:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.2.0:*:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.2.0:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.2.1:*:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.2.1:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.2.2:*:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.2.2:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.2.3:*:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.2.3:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.2.4:*:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.2.4:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.2.5:*:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.2.5:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.2.6:*:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.2.6:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.2.7:*:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.2.7:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.2.8:*:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.2.8:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.3:*:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.3:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.3.0:*:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.3.0:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.3.1:*:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.3.1:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.3.2:*:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.3.2:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.3.3:*:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.3.3:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.3.4:*:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.3.4:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.3.5:*:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.3.5:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.3.6:*:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.3.6:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.3.7:*:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.3.7:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.3.8:*:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.3.8:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.3.9:*:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.3.9:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.4:*:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.4:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.4.0:*:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.4.0:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.4.1:*:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.4.1:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.4.2:*:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.4.2:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.4.3:*:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.4.3:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.4.4:*:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.4.4:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.4.5:*:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.4.5:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.4.6:*:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.4.6:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.4.7:*:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.4.7:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.4.8:*:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.4.8:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.4.9:*:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.4.9:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.4.10:*:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.4.10:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.4.11:*:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.4.11:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.5:*:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.5:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.5.0:*:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.5.0:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.5.1:*:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.5.1:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.5.2:*:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.5.2:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.5.3:*:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.5.3:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.5.4:*:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.5.4:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.5.5:*:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.5.5:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.5.6:*:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.5.6:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.5.7:*:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.5.7:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.5.8:*:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.5.8:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.6.0:*:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.6.0:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.6.1:*:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.6.1:*:*:*:*:*:*:*
  • cpe:2.3:o:fedoraproject:fedora:11:*:*:*:*:*:*:*
    cpe:2.3:o:fedoraproject:fedora:11:*:*:*:*:*:*:*

Protect Your Infrastructure against CVE-2009-3767: 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-2025-2129 – A vulnerability was found in Mage AI 0.9.75. It has been classified as problematic. This affects an unknown part. The manipulation leads to insecur...
  • CVE-2025-2127 – A vulnerability was found in JoomlaUX JUX Real Estate 3.4.0 on Joomla. It has been classified as problematic. Affected is an unknown function of th...
  • CVE-2025-2126 – A vulnerability was found in JoomlaUX JUX Real Estate 3.4.0 on Joomla and classified as critical. This issue affects some unknown processing of the...
  • CVE-2025-2125 – A vulnerability has been found in Control iD RH iD 25.2.25.0 and classified as problematic. This vulnerability affects unknown code of the file /v2...
  • CVE-2025-2124 – A vulnerability, which was classified as problematic, was found in Control iD RH iD 25.2.25.0. This affects an unknown part of the file /v2/custome...