High
CVE-2018-11776
CVE ID
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CVE-2018-11776
MITRE ATT&CK
Collection
Command and Control
Credential Access
Defense Evasion
Discovery
Execution
Exfiltration
Impact
Initial Access
Lateral Movement
Persistence
Privilege Escalation
Topic Tags
Description
Apache Struts versions 2.3 to 2.3.34 and 2.5 to 2.5.16 suffer from possible Remote Code Execution when alwaysSelectFullNamespace is true (either by user or a plugin like Convention Plugin) and then: results are used with no namespace and in same time, its upper package have no or wildcard namespace and similar to results, same possibility when using url tag which doesn’t have value and action set and in same time, its upper package have no or wildcard namespace.
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Ratings
-
Attacker ValueHigh
-
ExploitabilityVery High
Technical Analysis
This vulnerability exists within the Apache Struts OGNL method dispatch routine. An attacker can submit a specially crafted HTTP request to a vulnerable web server. Specifically an attacker can taint the name
parameter passed to OgnlUtil::getValue()
.
Exploitation of this vulnerability would lead to code execution within the context of the Java process powering the server. An indicator of compromise will be present in the logs at the DEBUG
level. This IOC will look like a malformed value in the Executing action method =
message.
The default configuration is not vulnerable. The alwaysSelectFullNamespace
option must be enabled. This can be done by adding <constant name="struts.mapper.alwaysSelectFullNamespace" value="true" />
to the struts.xml
configuration file.
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General Information
Vendors
- apache,
- netapp,
- oracle
Products
- active iq unified manager,
- communications policy management,
- enterprise manager base platform 13.3.0.0,
- enterprise manager base platform 13.4.0.0,
- mysql enterprise monitor,
- oncommand insight -,
- oncommand workflow automation -,
- snapcenter -,
- struts
Exploited in the Wild
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Advisory
Additional Info
Technical Analysis
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CVE ID
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