Security Bulletin
Summary
Multiple vulnerabilities have been identified in apache2 that is embedded in the FSM. This bulletin addresses these vulnerabilities.
Vulnerability Details
CVEID: CVE-2017-3167
DESCRIPTION: Apache HTTPD could allow a remote attacker to bypass security restrictions, caused by the use of the ap_get_basic_auth_pw() function by third-party modules outside of the authentication phase. A remote attacker could exploit this vulnerability to bypass authentication requirements.
CVSS Base Score: 5.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/127416 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)
CVEID: CVE-2017-7668
DESCRIPTION: Apache HTTPD is vulnerable to a denial of service, caused by a buffer overread in the ap_find_token() function. By sending a specially crafted sequence of request headers, a remote attacker could exploit this vulnerability to cause a segmentation fault.
CVSS Base Score: 5.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/127419 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)
CVEID: CVE-2017-3169
DESCRIPTION: Apache HTTPD is vulnerable to a denial of service, caused by a NULL pointer dereference in mod_ssl. By sending a specially crafted HTTP request to an HTTPS port, a remote attacker could exploit this vulnerability to cause a denial of service.
CVSS Base Score: 5.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/127417 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)
CVEID: CVE-2017-9798
DESCRIPTION: Apache HTTP Server could allow a remote attacker to obtain sensitive information, caused by a flaw in the HTTP OPTIONS method, aka Optionsbleed. By sending an OPTIONS HTTP request, a remote attacker could exploit this vulnerability to obtain sensitive information.
CVSS Base Score: 7.5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/132159 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N)
CVEID: CVE-2017-7679
DESCRIPTION: Apache HTTPD could allow a remote attacker to obtain sensitive information, caused by a buffer overread in mod_mime. By sending a specially crafted Content-Type response header, a remote attacker could exploit this vulnerability to read one byte past the end of a buffer.
CVSS Base Score: 5.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/127420 for the current score
CVSS Environmental Score*: Undefined
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
Flex System Manager 1.3.4.2
Flex System Manager 1.3.4.1
Flex System Manager 1.3.4.0
Flex System Manager 1.3.3.2
Flex System Manager 1.3.3.1
Flex System Manager 1.3.3.0
Flex System Manager 1.3.2.3
Flex System Manager 1.3.2.2
Flex System Manager 1.3.2.1
Flex System Manager 1.3.2.0
Remediation/Fixes
IBM recommends updating the FSM and all affected remote Common Agent Services (CAS) endpoints using the instructions referenced in this table.
| Product | VRMF | Remediation |
| Flex System Manager | 1.3.4.0 1.3.4.1 1.3.4.2 | Navigate to the Support Portal and search for technote 847550927 for instructions on installing updates for FSM version 1.3.4 and Agents. |
| Flex System Manager | 1.3.3.0 1.3.3.1 1.3.3.2 | Navigate to the Support Portal and search for technote 847550927 for instructions on installing updates for FSM version 1.3.3 and Agents. |
| Flex System Manager | 1.3.2.0 1.3.2.1 1.3.2.2 1.3.2.3 | Navigate to the Support Portal and search for technote 847550927 for instructions on installing updates for FSM version 1.3.2 and Agents. |
For all other VRMF IBM recommends upgrading to a fixed, supported version/release of the product.
Note: Installation of the fixes provided in the technote will install a cumulative fix package that will update the version of the FSM. Reference the technote for more details.
You should verify applying this fix does not cause any compatibility issues. The fix may disable older encrypted protocols by default.
IBM recommends that you review your entire environment to identify other areas where you have enabled weak encryption and take appropriate mitigation and remediation actions.
For a complete listing of FSM security iFixes go to this technote: http://www-01.ibm.com/support/docview.wss?uid=nas7797054ebc3d9857486258027006ce4a0&myns=purflex&mync=E&cm_sp=purflex-_-NULL-_-E
Workarounds and Mitigations
None
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References
Change History
30 March 2018: 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
Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.
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Document Information
Modified date:
17 June 2018
UID
isg3T1027358