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Exam CAS-004 topic 1 question 445 discussion

Actual exam question from CompTIA's CAS-004
Question #: 445
Topic #: 1
[All CAS-004 Questions]

A security researcher identified the following messages while testing a web application:

/file/admin/myprofile.php ERROR file does not exist.
/file/admin/userinfo.php ERROR file does not exist.
/file/admin/adminprofile.php ERROR file does not exist.
/file/admin/admininfo.php ERROR file does not exist.
/file/admin/universalprofile.php ERROR file does not exist.
/file/admin/universalinfo.php ERROR file does not exist.
/file/admin/restrictedprofile.php ACCESS is denied.
/file/admin/restrictedinfo.php ERROR file does not exist.

Which of the following should the researcher recommend to remediate the issue?

  • A. Software composition analysis
  • B. Packet inspection
  • C. Proper error handling
  • D. Elimination of the use of unsafe functions
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Suggested Answer: C 🗳️
by 23169fd at July 18, 2024, 6:34 p.m.

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Steel16
1 week, 2 days ago
Selected Answer: C
o The error messages are revealing too much information about the internal structure of the web application, which can be exploited by attackers. Implementing proper error handling will ensure that error messages do not disclose sensitive information and provide only generic messages to the users, thereby enhancing the security of the application.
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23169fd
8 months ago
Selected Answer: C
The messages provide information about the existence and access permissions of certain files, which can be useful to an attacker. Proper error handling involves: Ensuring that error messages do not reveal sensitive information about the server or its structure. Customizing error messages to be generic and user-friendly without disclosing specifics about the error (e.g., "An error occurred" instead of "ERROR file does not exist" or "ACCESS is denied"). Logging detailed error information on the server-side for debugging purposes without exposing it to the end user.
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