Security Bulletin: Multiple vulnerabilities in IBM HTTP Server (IHS) affect IBM Security SiteProtector System (CVE-2015-1283, CVE-2015-3183 and CVE-2015-4947)

Security Bulletin

Summary

There are multiple vulnerabilities in IBM HTTP Server (IHS) that is used by IBM Security SiteProtector System.

Vulnerability Details

CVEID: CVE-2015-1283

DESCRIPTION: Multiple integer overflows in the XML_GetBuffer function in Expat through 2.1.0, as used in Google Chrome before 44.0.2403.89 and other products, allow remote attackers to cause a denial of service (heap-based buffer overflow) or possibly have unspecified other impact via crafted XML data, a related issue to CVE-2015-2716.

CVSS Base Score: 6.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/104964 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L)

CVEID: CVE-2015-3183

DESCRIPTION: Apache HTTP Server is vulnerable to HTTP request smuggling, caused by a chunk header parsing flaw in the apr_brigade_flatten() function. By sending a specially-crafted request in a malformed chunked header to the Apache HTTP server, an attacker could exploit this vulnerability to poison the web cache, bypass web application firewall protection, and conduct XSS attacks.

CVSS Base Score: 6.1
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/104844 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N)

CVEID: CVE-2015-4947

DESCRIPTION: IBM HTTP Server Administration Server could be vulnerable to a stack buffer overflow, caused by improper handling of user input. An authenticated remote attacker could overflow a buffer and execute arbitrary code on the system.

CVSS Base Score: 7.5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/104912 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H)

Affected Products and Versions

IBM Security SiteProtector System 3.0 and 3.1.1

Remediation/Fixes

For SiteProtector 3.0 and 3.1.1:
By default, SiteProtector's Update Server Component will automatically be updated with the package listed below.

UpdateServer_3_1_1_5.pkg

Alternatively, the package can be manually obtained from the IBM Security License Key and Download Center using the following URL:

https://ibmss.flexnetoperations.com/service/ibms/login

Workarounds and Mitigations

None

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References

Complete CVSS v2 Guide
On-line Calculator v2

Complete CVSS v3 Guide
On-line Calculator v3

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Change History

15 December 2015: 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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Tips

Security Bulletin: Multiple vulnerabilities in IBM HTTP Server (IHS) affect IBM Security SiteProtector System (CVE-2015-1283, CVE-2015-3183 and CVE-2015-4947)