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Improper Neutralization of Special Elements used in a Command ('Command Injection')


Severity High
Score 7.5/10


Apache James prior to 3.7.1 is vulnerable to a buffering attack relying on the use of the "STARTTLS" command. Fix of CVE-2021-38542, which solved similar problem from Apache James 3.6.1, is subject to a parser differential and do not take into account concurrent requests.

  • LOW
  • NONE
  • NONE
  • NONE
  • NONE
  • HIGH

CWE-77 - Command Injection

A command injection attack involves injecting an operating system command through the data input, which gets executed on the host operating system with the privileges of the victimized application. The impact of a command injection attack may range from loss of data confidentiality and integrity to unauthorized remote access to the hosting system. The attack may cause serious data breaches and system takeover.

Advisory Timeline

  • Published