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The Backup Server component in SAP Sybase ASE 15.7 before SP51 allows remote attackers to bypass access restrictions and perform database dumps by leveraging failure to validate credentials, aka SAP Security Note 1927859.
The Backup Server component in SAP Sybase ASE 15.7 before SP51 allows remote attackers to bypass access restrictions and perform database dumps by leveraging failure to validate credentials, aka SAP Security Note 1927859.
CVSS 3.0 Base Score 7.5. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N).
CVSS 2.0 Base Score 5. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (AV:N/AC:L/Au:N/C:P/I:N/A:N).
This function runs an arbitrary SQL query on a given database, returning the result of the query.
$employeeRecord = runEmployeeQuery('EmployeeDB',$_GET['EmployeeName']);return $preparedStatement->fetchAll();//Use a prepared statement to avoid CWE-89/.../While this code is careful to avoid SQL Injection, the function does not confirm the user sending the query is authorized to do so. An attacker may be able to obtain sensitive employee information from the database.
The following program could be part of a bulletin board system that allows users to send private messages to each other. This program intends to authenticate the user before deciding whether a private message should be displayed. Assume that LookupMessageObject() ensures that the $id argument is numeric, constructs a filename based on that id, and reads the message details from that file. Also assume that the program stores all private messages for all users in the same directory.
DisplayPrivateMessage($id);print "Body: " . encodeHTML($Message->{body}) . "\n";# For purposes of this example, assume that CWE-309 and# CWE-523 do not apply.ExitError("invalid username or password");While the program properly exits if authentication fails, it does not ensure that the message is addressed to the user. As a result, an authenticated attacker could provide any arbitrary identifier and read private messages that were intended for other users.
One way to avoid this problem would be to ensure that the "to" field in the message object matches the username of the authenticated user.
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