SB2017090806 - Remote code execution in Apache Struts
Published: September 8, 2017 Updated: September 11, 2017
Security Bulletin ID
SB2017090806
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Remote code execution (CVE-ID: CVE-2017-12611)
CWE-ID: CWE-20 - Improper input validation
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Green
The vulnerability allows a remote attacker to execute arbitrary code.
The weakness exists due to the unsafe use of writable expression values in Freemarker content. A remote attacker can add malicious values to writable expressions that the attacker submits to the affected application for processing and execute arbitrary code in the security context of the affected application.
Remediation
Install update from vendor's website.