Deserialization in Apache Brooklyn
CVE-2016-8744
Apache Brooklyn uses the SnakeYAML library for parsing YAML inputs. SnakeYAML allows the use of YAML tags to indicate that SnakeYAML should unmarshal data to a Java type. In the default configuration in Brooklyn before 0.10.0, SnakeYAML will allow unmarshalling to any Java type available on the classpath. This could provide an authenticated user with a means to cause the JVM running Brooklyn to load and run Java code without detection by Brooklyn. Such code would have the privileges of the Java process running Brooklyn, including the ability to open files and network connections, and execute system commands. There is known to be a proof-of-concept exploit using this vulnerability.
Vulnerability class: Insecure Deserialization
EPSS: 0.038 (89.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Apache Brooklyn
- Apache Software Foundation Brooklyn — versions 0.9.0 and all prior versions
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security@apache.org (x_refsource_CONFIRM, Exploit, Vendor Advisory)
- security@apache.org (mailing-list, x_refsource_MLIST)
Frequently asked questions
- What is CVE-2016-8744?
- CVE-2016-8744 is a high-severity vulnerability in Apache Brooklyn, classified under Deserialization of Untrusted Data. CVSS score: 8.8/10. Published 2017-09-13.
- How severe is CVE-2016-8744?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2016-8744 known to be exploited?
- 6 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.