Security Bulletin: Multiple Vulnerabilities of Apache HttpClient have affected APM Linux KVM Agent

Summary

APM Linux KVM Agent is vulnerable to Apache HttpClient vulnerabilities described in220912, CVE-2020-13956. The fix includes httpclient-4.5.jar upgraded to httpclient-4.5.13.jar

Vulnerability Details

CVEID:CVE-2012-6153
**DESCRIPTION:**Apache HttpComponents could allow a remote attacker to conduct spoofing attacks, caused by an incomplete fix related to the failure to verify that the server hostname matches a domain name in the Subject’s Common Name (CN) or SubjectAltName field of certificates. By persuading a victim to visit a Web site containing a specially-crafted certificate, an attacker could exploit this vulnerability using man-in-the-middle techniques to spoof an SSL server.
CVSS Base score: 4.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/95328 for the current score.
CVSS Vector: (AV:N/AC:M/Au:N/C:N/I:P/A:N)

CVEID:CVE-2020-13956
**DESCRIPTION:**Apache HttpClient could allow a remote attacker to bypass security restrictions, caused by the improper handling of malformed authority component in request URIs. By passing request URIs to the library as java.net.URI object, an attacker could exploit this vulnerability to pick the wrong target host for request execution.
CVSS Base score: 5.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/189572 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)

CVEID:CVE-2014-3577
**DESCRIPTION:**Apache HttpComponents could allow a remote attacker to conduct spoofing attacks, caused by the failure to verify that the server hostname matches a domain name in the Subject’s Common Name (CN) or SubjectAltName field of certificates. By persuading a victim to visit a Web site containing a specially-crafted certificate, an attacker could exploit this vulnerability using man-in-the-middle techniques to spoof an SSL server.
CVSS Base score: 4.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/95327 for the current score.
CVSS Vector: (AV:N/AC:M/Au:N/C:N/I:P/A:N)

**IBM X-Force ID:**220912
**DESCRIPTION:**Apache HttpComponents Client could allow a remote attacker to traverse directories on the system, caused by improper validation of user requests. An attacker could send a specially-crafted URL request containing “dot dot” sequences (/…/) to view files on the system.
CVSS Base score: 5.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/220912 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)

Affected Products and Versions

Remediation/Fixes

IBM strongly recommends addressing the vulnerability now by upgrading:

APM Linux KVM Agent release 8.1.4.0.20

Linux KVM Agent Version: 08.23.05.00

Download the APM Advanced Agents installer from Passport Advantage. Please refer below link for download instructions:

<https://www.ibm.com/docs/en/capmp/8.1.4?topic=advantage-part-numbers&gt;

Workarounds and Mitigations

None