Security Bulletin: Vulnerability in IBM Security AppScan Enterprise - Insecure Handling of SSL Communication during Scanning and the Manual Explore Proxy to the site (CVE-2012-0738, CVE-2012-0741)

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Abstract

The scan agent of IBM Security AppScan Enterprise does not allow a user to inspect the validity of the certificate presented by the server being scanned or during Manual Explore.

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VULNERABILITY DETAILS:
CVE ID: CVE-2012-0738

DESCRIPTION: All customers who are using AppScan Enterprise and scanning https sites may want to insure the validity of the SSL connection to avoid a man in the middle attack. This option is not available in AppScan Enterprise versions that are listed under affected platforms.

CVSS:
CVSS Base Score: 5.8
CVSS Temporal Score:
See http://xforce.iss.net/xforce/xfdb/74578 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:M/Au:N/C:P/I:P/A:N)



AFFECTED PRODUCTS AND VERSIONS: Versions 5.6 through 8.6.0.1 of IBM Security AppScan Enterprise running on Microsoft Windows are affected.


REMEDIATION: The recommended solution is to apply the fix listed below and perform the following changes for jobs that require this option:
· In the job properties of a scan, select Connections and disable the “Allow connections with invalid/untrusted certificates” options under Communication. (NOTE: This option is a per job option)

Vendor Fix:
For version 8.6.0.1:
· Apply the 8.6.0.2 Fix Pack

For version 5.6 to version 8.6.0.0:
· If you are unable to upgrade to version 8.6.0.2, contact IBM Technical Support


Workaround(s): None known; apply fixes


Mitigation(s):
· Before scanning an https site, confirm that the SSL certificate is valid for the site being scanned.



CVE ID: CVE-2012-0741


DESCRIPTION: All customers who are using AppScan Enterprise and manually exploring https sites may want to insure the validity of the SSL connection to avoid a man in the middle attack. This option is not available in AppScan Enterprise versions that are listed under affected platforms.

CVSS:
CVSS Base Score: 4.3
CVSS Temporal Score:
See http://xforce.iss.net/xforce/xfdb/74142 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector:
(AV:N/AC:M/Au:N/C:N/I:P/A:N)


AFFECTED PRODUCTS AND VERSIONS:
· Versions 5.6 through 8.6.0.1 of IBM Security AppScan Enterprise running on Microsoft Windows are affected.


REMEDIATION: The recommended solution is to apply the fix listed below and perform the following changes for jobs that require this option:
· In the job properties of a scan, select Connections and disable the “Allow connections with invalid/untrusted certificates” options under Communication. (NOTE: This option is a per job option)

Vendor Fix:
For version 8.6.0.1:
· Apply the 8.6.0.2 Fix Pack

For version 5.6 to version 8.6.0.0:
· If you are unable to upgrade to version 8.6.0.2, contact IBM Technical Support

Workaround(s): None known; apply fixes

Mitigation(s):
· Before manually exploring an https site, confirm that the SSL certificate is valid for the site being scanned.



REFERENCES:

· Complete CVSS Guide (hyperlink to http://www.first.org/cvss/cvss-guide.html )
· On-line Calculator V2 (link to http://nvd.nist.gov/cvss.cfm?calculator&adv&version=2)
· X-Force Vulnerability Database (http://xforce.iss.net/xforce/xfdb/74578)
· CVE-2012-0738 (http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-0738)
· X-Force Vulnerability Database (http://xforce.iss.net/xforce/xfdb/74142)
· CVE-2012-0741 (http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-0741)
· IBM Security AppScan Enterprise Fix Pack 8.6.0.2 (http://www-01.ibm.com/support/docview.wss?uid=swg24033994)

*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 Flash.


Note: 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.

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Document information


More support for:

IBM Security AppScan Enterprise
News

Software version:

5.6, 8.0, 8.5, 8.6, 8.6.0.1

Operating system(s):

Windows

Reference #:

1620759

Modified date:

2014-01-12

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