An attacker could send a specially-crafted certificate to impersonate a server.
Description: cURL/libcURL could allow a remote attacker to bypass security restrictions, caused by an error in the hostmatch() function when validating certificates containing an IP address with a wildcard match within the Common Name field. By sending a specially-crafted SSL certificate containing wildcard characters, a remote attacker could exploit this vulnerability to spoof the server and launch further attacks on the system.
CVSS Base Score: 4.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/92130 for more information
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:M/Au:N/C:N/I:P/A:N)
Affected Products and Versions
The cURL component is only used in the CMI integration and in the OSLC-based ClearQuest integration.
ClearCase client version
8.0.1 through 18.104.22.168
8.0 through 22.214.171.124
7.1.2 through 126.96.36.199
7.1.0.x, 7.1.1.x (all versions and fix packs)
The solution is to upgrade to a fix pack of ClearCase that has a fix in the cURL component.
Applying the fix
|Install Rational ClearCase Fix Pack 6 (188.8.131.52)|
|Install Rational ClearCase Fix Pack 13 (184.108.40.206)|
|Customers with extended support contracts should install Rational ClearCase Fix Pack 16 (220.127.116.11)|
Workarounds and Mitigations
Get Notified about Future Security Bulletins
* 10 December 2014: Original copy 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.
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.
Internal Use Only
IBM20140429-1354-40 Advisory DB ID = 1697 Product record 36392
10 July 2018