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Security Bulletin: IBM Sterling Global Mailbox is vulnerable to security bypass due to Apache HttpClient (CVE-2020-13956)

Security Bulletin


Vulnerability in Apache HttpClient library shipped with IBM Sterling Global Mailbox has been addressed.

Vulnerability Details

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 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: 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)

Affected Products and Versions

Affected Product(s)Version(s)
IBM Sterling Global Mailbox6.0.3.7
IBM Sterling Global Mailbox6.1.2.0


Refer to the following security bulletins for vulnerability details and information about fixes addressed by Jackson Databind which is shipped with Global Mailbox.




Fix / Remediation

IBM Sterling Global Mailbox


IBM Sterling Global Mailbox

Apply is now available on Fix Central -


Fix Central Link:

B2Bi Docker

Fix Central Link:


Fix Central Link:


SFG Docker

Fix Central Link: IIM & Certified Container is now available on Fix Central -


Sterling B2B Integrator


Sterling File Gateway


Certified Container

Certified Container edition images and Helm charts are now available for download from IBM Entitled Registry (ER) and IBM public chart repository, respectively.

IBM Sterling B2B Integrator V6.1.2.1

  • Certified Container Image

  • Helm Chart


IBM Sterling File Gateway V6.1.2.1

  • Certified Container Image



Workarounds and Mitigations


Get Notified about Future Security Bulletins




Change History

08 Feb 2023: Initial Publication

*The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin.


According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES ""AS IS"" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY. In addition to other efforts to address potential vulnerabilities, IBM periodically updates the record of components contained in our product offerings. As part of that effort, if IBM identifies previously unidentified packages in a product/service inventory, we address relevant vulnerabilities regardless of CVE date. Inclusion of an older CVEID does not demonstrate that the referenced product has been used by IBM since that date, nor that IBM was aware of a vulnerability as of that date. We are making clients aware of relevant vulnerabilities as we become aware of them. "Affected Products and Versions" referenced in IBM Security Bulletins are intended to be only products and versions that are supported by IBM and have not passed their end-of-support or warranty date. Thus, failure to reference unsupported or extended-support products and versions in this Security Bulletin does not constitute a determination by IBM that they are unaffected by the vulnerability. Reference to one or more unsupported versions in this Security Bulletin shall not create an obligation for IBM to provide fixes for any unsupported or extended-support products or versions.

Document Location


[{"Business Unit":{"code":"BU055","label":"Cognitive Applications"},"Product":{"code":"SS6EA4","label":"IBM Global High Availability Mailbox"},"Component":"","Platform":[{"code":"PF033","label":"Windows"},{"code":"PF016","label":"Linux"},{"code":"PF002","label":"AIX"}],"Version":"6.0.2","Edition":""}]

Document Information

Modified date:
21 July 2023