High severity · published Oct 16, 2017
CVE-2016-4461
Apache Struts 2.x before 2.3.29 allows remote attackers to execute arbitrary code via a "%{}" sequence in a tag attribute, aka forced double OGNL evaluation
8.8
CVSS
8.1%
EPSS
No
On KEV
Description
Apache Struts 2.x before 2.3.29 allows remote attackers to execute arbitrary code via a "%{}" sequence in a tag attribute, aka forced double OGNL evaluation. NOTE: this vulnerability exists because of an incomplete fix for CVE-2016-0785.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)8.1% · higher than 95% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
ST
Struts · Apache
2.0.0 before 2.3.29 · source: NVD
OB
Oncommand Balance · Netapp
All versions, or not specified · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2016-4461
CVE.org
https://www.cve.org/CVERecord?id=CVE-2016-4461
Third Party Advisory
http://www.securityfocus.com/bid/91277
Third Party Advisory
https://security.netapp.com/advisory/ntap-20180629-0004/
Mitigation
https://struts.apache.org/docs/s2-036.html
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