12 October 2017
Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2017.2579 2017-10 Security Bulletin: Contrail: hard coded credentials (CVE-2017-10616) and XML External Entity (XXE) vulnerability (CVE-2017-10617) 12 October 2017 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Juniper Contrail Publisher: Juniper Networks Operating System: Juniper Impact/Access: Access Confidential Data -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2017-10617 CVE-2017-10616 Original Bulletin: http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10819 - --------------------------BEGIN INCLUDED TEXT-------------------- 2017-10 Security Bulletin: Contrail: hard coded credentials (CVE-2017-10616) and XML External Entity (XXE) vulnerability (CVE-2017-10617) PRODUCT AFFECTED: This issue affects Contrail 2.2, 3.0, 3.1, 3.2. PROBLEM: The ifmap service that comes bundled with Contrail releases prior to version 4.0 uses hard coded credentials. Additionally the ifmap service has an XML External Entity (XXE) vulnerability that may allow an attacker to retrieve sensitive system files. No other Juniper Networks products or platforms are affected by this issue. The hard coded credential vulnerability has been assigned CVE-2017-10616. The XML External Entity (XXE) vulnerability has been assigned CVE-2017-10617. CVE-2017-10616 has a CVSSv3 score of 5.3 (AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N) CVE-2017-10617 has a CVSSv3 score of 5.0 (AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N) These two vulnerabilities can be chained together and have a combined CVSSv3 score of 5.8 (AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N) Juniper SIRT is not aware of any malicious exploitation of this vulnerability. SOLUTION: The following software releases have been updated to resolve these specific issues: Contrail 2.21.4, 126.96.36.199, 188.8.131.52, 184.108.40.206 and all subsequent releases. WORKAROUND: The hard coded credentials can be modified manually, however, there are no viable workarounds for the XXE vulnerability. It is good security practice to limit the exploitable attack surface of critical infrastructure networking equipment. Use access lists or firewall filters to limit access only from trusted, administrative networks or hosts. MODIFICATION HISTORY: 2017-10-11: Initial Publication. RELATED LINKS: KB16613: Overview of the Juniper Networks SIRT Quarterly Security Bulletin Publication Process KB16765: In which releases are vulnerabilities fixed? KB16446: Common Vulnerability Scoring System (CVSS) and Juniper's Security Advisories Report a Vulnerability - How to Contact the Juniper Networks Security Incident Response Team CVE-2017-10616 at cve.mitre.org CVE-2017-10617 at cve.mitre.org CVSS SCORE: 5.8 (AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N) RISK LEVEL: Medium RISK ASSESSMENT: Information for how Juniper Networks uses CVSS can be found at KB 16446 "Common Vulnerability Scoring System (CVSS) and Juniper's Security Advisories." ACKNOWLEDGEMENTS: Juniper SIRT would like to acknowledge and thank Guillaume TEISSIER / Orange for responsibly reporting this vulnerability. - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. 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