Security Bulletin
Summary
IBM Rational ClearCase is affected by cURL/libcURL access restriction bypass and network host spoofing vulnerabilities.
Vulnerability Details
CVEID: CVE-2016-8624
DESCRIPTION: cURL/libcurl could allow a remote attacker to bypass security restrictions, caused by the failure to parse the authority component of the URL when handling '#' character. By using a specially-crafted URL with '#' character, an attacker could exploit this vulnerability to bypass access restrictions.
CVSS Base Score: 5.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/118642 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-2016-8625
DESCRIPTION: cURL/libcurl could provide weaker than expected security, caused by the translation of International Domain Names (IDNA) to puny code for DNS resolving using the IDNA 2003 standard. An attacker could exploit this vulnerability to issue network transfer requests to the wrong host.
CVSS Base Score: 5.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/118644 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)
Affected Products and Versions
The cURL component is used in the CMI integration, the OSLC-based ClearQuest integration, and in the automatic view client.
ClearCase client version | Status |
9.0 through 9.0.0.3 | Affected |
8.0.1 through 8.0.1.13 | Affected |
8.0 through 8.0.0.20 | Affected |
7.1.2 through 7.1.2.19 | Affected |
7.1 through 7.1.1.9 | Not affected |
Remediation/Fixes
The solution is to upgrade to a fix pack of ClearCase that has a fix in the cURL component. The fixes contain cURL version 7.52.1.
Affected Versions | Applying the fix |
9.0 through 9.0.0.3 | Install Rational ClearCase Fix Pack 4 (9.0.0.4) for 9.0 |
8.0.1 through 8.0.1.13 | Install Rational ClearCase Fix Pack 14 (8.0.1.14) for 8.0.1 |
8.0 through 8.0.0.20 | Install Rational ClearCase Fix Pack 21 (8.0.0.21) for 8.0 |
7.1.2 through 7.1.2.19 | Customers on extended support contracts should contact Customer Support for information. |
Workarounds and Mitigations
None
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References
Change History
15 March 2017: 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.
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:
10 July 2018
UID
swg21996857