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Deserialization of Untrusted Data

CVE-2017-15703

Medium
5/10

Summary

Any authenticated user (valid client certificate but without ACL permissions) could upload a template which contained malicious code and caused a denial of service via Java deserialization attack. The fix to properly handle Java deserialization was applied on the Apache NiFi 1.4.0 release (nifi-web-api is unaffected from 0.5.1). Users running a prior 1.x release should upgrade to the appropriate release.

  • LOW
  • LOCAL
  • NONE
  • UNCHANGED
  • REQUIRED
  • LOW
  • NONE
  • HIGH

CWE-502 - Deserialization of Untrusted Data

Deserialization of untrusted data vulnerabilities enable an attacker to replace or manipulate a serialized object, replacing it with malicious data. When the object is deserialized at the victim's end the malicious data is able to compromise the victim’s system. The exploit can be devastating, its impact may range from privilege escalation, broken access control, or denial of service attacks to allowing unauthorized access to the application's internal code and logic which can compromise the entire system.

References

Advisory Timeline

  • Published