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Rewterz Threat Alert – Magecart Group 5 and Carbanak Stealing Credentials
October 25, 2019
Rewterz Threat Alert – Citadel Banking Malware – IoCs
October 25, 2019

Rewterz Threat Advisory – CVE-2017-5638 – Apache Struts Exploit Attempts

October 25, 2019

Severity

Medium

Analysis Summary

The Jakarta Multipart parser in Apache Struts 2 2.3.x before 2.3.32 and 2.5.x before 2.5.10.1 has incorrect exception handling and error-message generation during file-upload attempts, which allows remote attackers to execute arbitrary commands via a crafted Content-Type, Content-Disposition, or Content-Length HTTP header, as exploited in the wild in March 2017 with a Content-Type header containing a #cmd= string. Currently, a Host from Hong Kong is found trying multiple Apache Struts exploits against web servers.

Impact

Remote Code Execution

Affected Vendors

Apache

Affected Products

  • Apache Struts 2 2.3.x before 2.3.32
  • 2.5.x before 2.5.10.1

Remediation

  • Block the threat indicator at its respective control.
  • Immediately upgrade to a secure version if vulnerable versions of Apache Struts are currently running in the environment.
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      • APT Assessment
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      • Incident Analysis
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