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Security Bulletin: Openssh vulnerabilities affect IBM SmartClound Entry (CVE-2015-5352 CVE-2015-6563 CVE-2015-6564)

Security Bulletin


Summary

IBM SmartCloud Entry is vulnerable to multiple OpenSSH vulnerabilities. An attacker could exploit these vulnerabilities to bypass XSECURITY restrictions, conduct impersonation attacks, or gain elevated privileges on the system.

Vulnerability Details

CVEID: CVE-2015-5352
DESCRIPTION:
OpenSSH could allow a remote authenticated attacker to bypass security restrictions, caused by an error when making connections after ForwardX11Timeout expired. If X11 connections are forwarded with ForwardX11Trusted=no, an attacker could exploit this vulnerability to bypass XSECURITY restrictions.
CVSS Base Score: 4.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/104418 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N)

CVEID: CVE-2015-6563
DESCRIPTION:
OpenSSH could allow a local attacker to bypass security restrictions, caused by the acceptance of extraneous username data in MONITOR_REQ_PAM_INIT_CTX requests by the monitor component in sshd. An attacker could exploit this vulnerability to conduct impersonation attacks.
CVSS Base Score: 4
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/105881 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)

CVEID: CVE-2015-6564
DESCRIPTION:
OpenSSH could allow a local attacker to gain elevated privileges on the system, caused by a use-after-free error in the mm_answer_pam_free_ctx function. An attacker could exploit this vulnerability to gain elevated privileges on the system.
CVSS Base Score: 7.4
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/105882 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H)

Affected Products and Versions

IBM SmartCloud Entry 2.2.0 through 2.2.0.4 Appliance fix pack 6
IBM SmartCloud Entry 2.3.0 through 2.3.0.4 Appliance fix pack 6
IBM SmartCloud Entry 2.4.0 through 2.4.0.4 Appliance fix pack 6
IBM SmartCloud Entry 3.1.0 through 3.1.0.4 Appliance fix pack 21
IBM SmartCloud Entry 3.2.0 through 3.2.0.4 Appliance fix pack 21

Workarounds and Mitigations

None

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References

Off

Change History

8 September 2016: Original version published

*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.

Disclaimer

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.

[{"Product":{"code":"SST55W","label":"IBM Cloud Manager with OpenStack"},"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Component":"Not Applicable","Platform":[{"code":"PF016","label":"Linux"}],"Version":"2.3;2.4;3.1;3.2","Edition":"","Line of Business":{"code":"LOB10","label":"Data and AI"}},{"Product":{"code":"SST55W","label":"IBM Cloud Manager with OpenStack"},"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Component":" ","Platform":[{"code":"","label":""}],"Version":"","Edition":"","Line of Business":{"code":"LOB10","label":"Data and AI"}}]

Document Information

Modified date:
18 July 2020

UID

isg3T1024087