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AUSCERT External Security Bulletin Redistribution
2017-10 Security Bulletin: Contrail: hard coded credentials
(CVE-2017-10616) and XML External Entity (XXE) vulnerability
12 October 2017
AusCERT Security Bulletin Summary
Product: Juniper Contrail
Publisher: Juniper Networks
Operating System: Juniper
Impact/Access: Access Confidential Data -- Remote/Unauthenticated
CVE Names: CVE-2017-10617 CVE-2017-10616
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2017-10 Security Bulletin: Contrail: hard coded credentials (CVE-2017-10616)
and XML External Entity (XXE) vulnerability (CVE-2017-10617)
This issue affects Contrail 2.2, 3.0, 3.1, 3.2.
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.
The following software releases have been updated to resolve these specific
issues: Contrail 2.21.4, 18.104.22.168, 22.214.171.124, 126.96.36.199 and all subsequent
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.
2017-10-11: Initial Publication.
KB16613: Overview of the Juniper Networks SIRT Quarterly Security Bulletin
KB16765: In which releases are vulnerabilities fixed?
KB16446: Common Vulnerability Scoring System (CVSS) and Juniper's Security
Report a Vulnerability - How to Contact the Juniper Networks Security Incident
CVE-2017-10616 at cve.mitre.org
CVE-2017-10617 at cve.mitre.org
Information for how Juniper Networks uses CVSS can be found at KB 16446
"Common Vulnerability Scoring System (CVSS) and Juniper's Security
Juniper SIRT would like to acknowledge and thank Guillaume TEISSIER / Orange
for responsibly reporting this vulnerability.
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