Apache HttpClient up to 4.3.0 HttpClientBuilder.java X509HostnameVerifier input validation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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9.4$0-$5k0.00

A vulnerability has been found in Apache HttpClient up to 4.3.0 and classified as very critical. Affected by this vulnerability is an unknown function of the file http/impl/client/HttpClientBuilder.java. The manipulation of the argument X509HostnameVerifier with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

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.

The bug was discovered 06/12/2013. The weakness was disclosed 10/30/2017 (Website). It is possible to read the advisory at svn.apache.org. This vulnerability is known as CVE-2013-4366 since 06/12/2013. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 12/02/2019).

The vulnerability was handled as a non-public zero-day exploit for at least 1601 days. During that time the estimated underground price was around $5k-$25k.

Upgrading to version 4.3.1 eliminates this vulnerability.

Productinfo

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.8
VulDB Meta Temp Score: 9.6

VulDB Base Score: 9.8
VulDB Temp Score: 9.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: HttpClient 4.3.1

Timelineinfo

06/12/2013 🔍
06/12/2013 +0 days 🔍
10/30/2017 +1601 days 🔍
10/30/2017 +0 days 🔍
10/31/2017 +1 days 🔍
12/02/2019 +762 days 🔍

Sourcesinfo

Vendor: apache.org

Advisory: svn.apache.org
Status: Not defined
Confirmation: 🔍

CVE: CVE-2013-4366 (🔍)

Entryinfo

Created: 10/31/2017 07:51
Updated: 12/02/2019 08:23
Changes: 10/31/2017 07:51 (59), 12/02/2019 08:23 (2)
Complete: 🔍

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