CVE-2013-4366

Critical

not-fixedNot Available

Security vulnerability in httpclient

Description

http/impl/client/HttpClientBuilder.java in Apache HttpClient 4.3.x before 4.3.1 does not ensure that X509HostnameVerifier is not null, which allows attackers to have unspecified impact via vectors involving hostname verification.

Impact Assessment

This critical vulnerability poses an immediate and severe threat to system security. Exploitation could lead to complete system compromise, data breach, or denial of service. Immediate action is required.

Attack Characteristics

Attack Vector

NETWORK

Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

CVSS v3.1 Score

9.8

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

EPSS — Exploit Prediction

3.31%

Probability of exploitation in the next 30 days · more likely than 88.2% of all CVEs.

Quick Facts

PublishedJan 1, 1

Last ModifiedJan 1, 1

Discovered BySecurity Researcher

Statusnot-fixed

Weakness Types

CWE-20

Unknown CWE

This vulnerability is associated with CWE-20. This type of weakness can lead to security issues if not properly addressed.

Attack Metrics

CVSS v3.1 Metrics Breakdown

attack Vector

NETWORK

attack Complexity

LOW

privileges Required

NONE

user Interaction

NONE

scope

Unchanged

confidentiality Impact

High

integrity Impact

High

availability Impact

High

Remediation Guide

How to Fix This Vulnerability

Remediation Steps

1Review and audit affected systems for potential exploitation
2Implement additional security controls if immediate patching is not possible
3Monitor for suspicious activity related to this vulnerability

Mitigation Strategies

Network Segmentation

High

Isolate affected systems from untrusted networks until patching is complete

Monitoring and Detection

Medium

Implement enhanced monitoring for exploitation attempts and unusual behavior

Event History

Vulnerability Timeline

Vulnerability published

0001-01-01T00:00:00Z

published

▪ Common questions

How severe is CVE-2013-4366?

CVE-2013-4366 is rated CRITICAL with a CVSS score of 9.8 (attack vector: NETWORK).

What kind of weakness is CVE-2013-4366?

CVE-2013-4366 is classified as CWE-20 — Security vulnerability in httpclient.

Back to All Vulnerabilities

CVE-2013-4366

Critical

not-fixedNot Available

Security vulnerability in httpclient

ShareX LinkedIn Reddit HN

Description

Impact Assessment

Attack Characteristics

Attack Vector

NETWORK

Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

CVSS v3.1 Score

9.8

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

EPSS — Exploit Prediction

3.31%

Probability of exploitation in the next 30 days · more likely than 88.2% of all CVEs.

Quick Facts

PublishedJan 1, 1

Last ModifiedJan 1, 1

Discovered BySecurity Researcher

Statusnot-fixed

Weakness Types

CWE-20

Unknown CWE

This vulnerability is associated with CWE-20. This type of weakness can lead to security issues if not properly addressed.

Attack Metrics

CVSS v3.1 Metrics Breakdown

attack Vector

NETWORK

attack Complexity

LOW

privileges Required

NONE

user Interaction

NONE

scope

Unchanged

confidentiality Impact

High

integrity Impact

High

availability Impact

High

Remediation Guide

How to Fix This Vulnerability

Remediation Steps

1Review and audit affected systems for potential exploitation
2Implement additional security controls if immediate patching is not possible
3Monitor for suspicious activity related to this vulnerability

Mitigation Strategies

Network Segmentation

High

Isolate affected systems from untrusted networks until patching is complete

Monitoring and Detection

Medium

Implement enhanced monitoring for exploitation attempts and unusual behavior

Event History

Vulnerability Timeline

Vulnerability published

0001-01-01T00:00:00Z

published

▪ Common questions

How severe is CVE-2013-4366?

CVE-2013-4366 is rated CRITICAL with a CVSS score of 9.8 (attack vector: NETWORK).

What kind of weakness is CVE-2013-4366?

CVE-2013-4366 is classified as CWE-20 — Security vulnerability in httpclient.

Back to All Vulnerabilities