Vulnerability Details : CVE-2016-8741
The Apache Qpid Broker for Java can be configured to use different so called AuthenticationProviders to handle user authentication. Among the choices are the SCRAM-SHA-1 and SCRAM-SHA-256 AuthenticationProvider types. It was discovered that these AuthenticationProviders in Apache Qpid Broker for Java 6.0.x before 6.0.6 and 6.1.x before 6.1.1 prematurely terminate the SCRAM SASL negotiation if the provided user name does not exist thus allowing remote attacker to determine the existence of user accounts. The Vulnerability does not apply to AuthenticationProviders other than SCRAM-SHA-1 and SCRAM-SHA-256.
Vulnerability category: Information leak
Products affected by CVE-2016-8741
- cpe:2.3:a:apache:qpid_broker-j:6.0.1:*:*:*:*:*:*:*
- cpe:2.3:a:apache:qpid_broker-j:6.0.2:*:*:*:*:*:*:*
- cpe:2.3:a:apache:qpid_broker-j:6.0.3:*:*:*:*:*:*:*
- cpe:2.3:a:apache:qpid_broker-j:6.0.4:*:*:*:*:*:*:*
- cpe:2.3:a:apache:qpid_broker-j:6.0.5:*:*:*:*:*:*:*
- cpe:2.3:a:apache:qpid_broker-j:6.1.0:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2016-8741
0.49%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 63 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2016-8741
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:P/I:N/A:N |
10.0
|
2.9
|
NIST | |
|
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2016-8741
-
The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.Assigned by: nvd@nist.gov (Primary)
References for CVE-2016-8741
-
http://www.securityfocus.com/bid/95136
Apache Qpid Broker for Java CVE-2016-8741 Remote Information Disclosure VulnerabilityBroken Link;Third Party Advisory;VDB Entry
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http://www.securitytracker.com/id/1037537
Apache Qpid Broker for Java Certain AuthenticationProviders Let Remote Users Determine Valid Usernames on the Target System - SecurityTrackerBroken Link;Third Party Advisory;VDB Entry
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https://issues.apache.org/jira/browse/QPID-7599
[QPID-7599] [CVE-2016-8741] Prevent leaking information about the existence of user accounts in SCRAM-SHA256/SCRAM-SHA1 authentication providers - ASF JIRAIssue Tracking
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http://qpid.2158936.n2.nabble.com/CVE-2016-8741-Apache-Qpid-Broker-for-Java-Information-Leakage-td7657025.html
Apache Qpid users - [CVE-2016-8741] Apache Qpid Broker for Java - Information LeakageVendor Advisory
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