Security Bulletin: Vulnerability in IBM Rational ClearCase with SSL/TLS communications (CVE-2015-5039)

Summary

IBM Rational ClearCase is vulnerable to attacks on its SSL/TLS communications due to improper validation of server certificates.

Vulnerability Details

CVEID: CVE-2015-5039**
DESCRIPTION:** IBM Rational ClearCase Remote Client and change management integrations could allow a remote attacker to view and modify network traffic to the CCRC WAN server or change management server, due to improper hostname validation of the server SSL certificate. An attacker could exploit this vulnerability to impersonate the server or the user.
CVSS Base Score: 4.8
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/106715 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N)

Affected Products and Versions

Rational ClearCase 7.1.x (all versions), 8.0 through 8.0.0.17, and 8.0.1 through 8.0.1.10.

Rational ClearCase 9.0 and later are not affected.

The affected components are the following, when configured to use SSL/TLS (HTTPS) connections to a server:

• ClearCase Remote Client (CTE, rcleartool, CMAPI)
• Change Management Integrations (CMI) to ClearQuest, Rational Team Concert, or Jira
• UCM/CQ OSLC-based integration (CALAMARI)
• Base CC/CQ Integration V2 (Perl trigger based)

Remediation/Fixes

Install a fix pack containing fixes:

Affected version

|

Fixes

—|—

8.0.1 through 8.0.1.10

| Install Rational ClearCase Fix Pack 11 (8.0.1.11) for 8.0.1

8.0 through 8.0.0.18

| Install Rational ClearCase Fix Pack 18 (8.0.0.18) for 8.0

7.1.x

| Customers on extended support contracts for 7.1.x should contact Customer Support.
For 7.0.x and 7.1.x and earlier releases, IBM recommends upgrading to a fixed, supported version/release/platform of the product.

Workarounds and Mitigations

None.