CVE-2020-11527 - Exposure of Sensitive Information to an Unauthorized Actor

Severity

75%

Complexity

39%

Confidentiality

60%

In Zoho ManageEngine OpManager before 12.4.181, an unauthenticated remote attacker can send a specially crafted URI to read arbitrary files.

In Zoho ManageEngine OpManager before 12.4.181, an unauthenticated remote attacker can send a specially crafted URI to read arbitrary files.

CVSS 3.1 Base Score 7.5. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (CVSS:3.1/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).

Demo Examples

Exposure of Sensitive Information to an Unauthorized Actor

CWE-200

The following code checks validity of the supplied username and password and notifies the user of a successful or failed login.


               
}
}
print "Login Successful";
print "Login Failed - incorrect password";
print "Login Failed - unknown username";

In the above code, there are different messages for when an incorrect username is supplied, versus when the username is correct but the password is wrong. This difference enables a potential attacker to understand the state of the login function, and could allow an attacker to discover a valid username by trying different values until the incorrect password message is returned. In essence, this makes it easier for an attacker to obtain half of the necessary authentication credentials.

While this type of information may be helpful to a user, it is also useful to a potential attacker. In the above example, the message for both failed cases should be the same, such as:


               
"Login Failed - incorrect username or password"

Exposure of Sensitive Information to an Unauthorized Actor

CWE-200

This code tries to open a database connection, and prints any exceptions that occur.


               
}
openDbConnection();
//print exception message that includes exception message and configuration file location
echo 'Check credentials in config file at: ', $Mysql_config_location, '\n';

If an exception occurs, the printed message exposes the location of the configuration file the script is using. An attacker can use this information to target the configuration file (perhaps exploiting a Path Traversal weakness). If the file can be read, the attacker could gain credentials for accessing the database. The attacker may also be able to replace the file with a malicious one, causing the application to use an arbitrary database.

Exposure of Sensitive Information to an Unauthorized Actor

CWE-200

In the example below, the method getUserBankAccount retrieves a bank account object from a database using the supplied username and account number to query the database. If an SQLException is raised when querying the database, an error message is created and output to a log file.


               
}
return userAccount;
}
userAccount = (BankAccount)queryResult.getObject(accountNumber);
Logger.getLogger(BankManager.class.getName()).log(Level.SEVERE, logMessage, ex);

The error message that is created includes information about the database query that may contain sensitive information about the database or query logic. In this case, the error message will expose the table name and column names used in the database. This data could be used to simplify other attacks, such as SQL injection (CWE-89) to directly access the database.

Exposure of Sensitive Information to an Unauthorized Actor

CWE-200

This code stores location information about the current user:


               
}...
Log.e("ExampleActivity", "Caught exception: " + e + " While on User:" + User.toString());

When the application encounters an exception it will write the user object to the log. Because the user object contains location information, the user's location is also written to the log.

Exposure of Sensitive Information to an Unauthorized Actor

CWE-200

The following is an actual MySQL error statement:


               
Warning: mysql_pconnect(): Access denied for user: 'root@localhost' (Using password: N1nj4) in /usr/local/www/wi-data/includes/database.inc on line 4

The error clearly exposes the database credentials.

Exposure of Sensitive Information to an Unauthorized Actor

CWE-200

This code displays some information on a web page.


               
Social Security Number: <%= ssn %></br>Credit Card Number: <%= ccn %>

The code displays a user's credit card and social security numbers, even though they aren't absolutely necessary.

Exposure of Sensitive Information to an Unauthorized Actor

CWE-200

The following program changes its behavior based on a debug flag.


               
} %>

The code writes sensitive debug information to the client browser if the "debugEnabled" flag is set to true .

Exposure of Sensitive Information to an Unauthorized Actor

CWE-200

This code uses location to determine the user's current US State location.

First the application must declare that it requires the ACCESS_FINE_LOCATION permission in the application's manifest.xml:


               
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>

During execution, a call to getLastLocation() will return a location based on the application's location permissions. In this case the application has permission for the most accurate location possible:


               
deriveStateFromCoords(userCurrLocation);

While the application needs this information, it does not need to use the ACCESS_FINE_LOCATION permission, as the ACCESS_COARSE_LOCATION permission will be sufficient to identify which US state the user is in.

Overview

Type

ZohoCorp ManageEngine OpManager

First reported 4 years ago

2020-04-04 17:15:00

Last updated 4 years ago

2020-04-06 16:22:00

Affected Software

ZohoCorp ManageEngine OpManager -

ZohoCorp ManageEngine OpManager 12.4

12.4

ZohoCorp ManageEngine OpManager 12.4 124000

12.4

ZohoCorp ManageEngine OpManager 12.4 124011

12.4

ZohoCorp ManageEngine OpManager 12.4 124012

12.4

ZohoCorp ManageEngine OpManager 12.4 124013

12.4

ZohoCorp ManageEngine OpManager 12.4 124014

12.4

ZohoCorp ManageEngine OpManager 12.4 124015

12.4

ZohoCorp ManageEngine OpManager 12.4 124016

12.4

ZohoCorp ManageEngine OpManager 12.4 124022

12.4

ZohoCorp ManageEngine OpManager 12.4 124023

12.4

ZohoCorp ManageEngine OpManager 12.4 124024

12.4

ZohoCorp ManageEngine OpManager 12.4 124025

12.4

ZohoCorp ManageEngine OpManager 12.4 124026

12.4

ZohoCorp ManageEngine OpManager 12.4 124027

12.4

ZohoCorp ManageEngine OpManager 12.4 124030

12.4

ZohoCorp ManageEngine OpManager 12.4 124033

12.4

ZohoCorp ManageEngine OpManager 12.4 124037

12.4

ZohoCorp ManageEngine OpManager 12.4 124039

12.4

ZohoCorp ManageEngine OpManager 12.4 124040

12.4

ZohoCorp ManageEngine OpManager 12.4 124041

12.4

ZohoCorp ManageEngine OpManager 12.4 124042

12.4

ZohoCorp ManageEngine OpManager 12.4 124043

12.4

ZohoCorp ManageEngine OpManager 12.4 124051

12.4

ZohoCorp ManageEngine OpManager 12.4 124053

12.4

ZohoCorp ManageEngine OpManager 12.4 124054

12.4

ZohoCorp ManageEngine OpManager 12.4 124056

12.4

ZohoCorp ManageEngine OpManager 12.4 124058

12.4

ZohoCorp ManageEngine OpManager 12.4 124065

12.4

ZohoCorp ManageEngine OpManager 12.4 124066

12.4

ZohoCorp ManageEngine OpManager 12.4 124067

12.4

ZohoCorp ManageEngine OpManager 12.4 124069

12.4

ZohoCorp ManageEngine OpManager 12.4 124070

12.4

ZohoCorp ManageEngine OpManager 12.4 124071

12.4

ZohoCorp ManageEngine OpManager 12.4 124074

12.4

ZohoCorp ManageEngine OpManager 12.4 124075

12.4

ZohoCorp ManageEngine OpManager 12.4 124081

12.4

ZohoCorp ManageEngine OpManager 12.4 124082

12.4

ZohoCorp ManageEngine OpManager 12.4 124085

12.4

ZohoCorp ManageEngine OpManager 12.4 124086

12.4

ZohoCorp ManageEngine OpManager 12.4 124087

12.4

ZohoCorp ManageEngine OpManager 12.4 124089

12.4

ZohoCorp ManageEngine OpManager 12.4 124095

12.4

ZohoCorp ManageEngine OpManager 12.4 124096

12.4

ZohoCorp ManageEngine OpManager 12.4 124097

12.4

ZohoCorp ManageEngine OpManager 12.4 124098

12.4

ZohoCorp ManageEngine OpManager 12.4 124099

12.4

ZohoCorp ManageEngine OpManager 12.4 124100

12.4

ZohoCorp ManageEngine OpManager 12.4 124101

12.4

ZohoCorp ManageEngine OpManager 12.4 124102

12.4

ZohoCorp ManageEngine OpManager 12.4 124168

12.4

ZohoCorp ManageEngine OpManager 12.4 124169

12.4

ZohoCorp ManageEngine OpManager 12.4 124175

12.4

ZohoCorp ManageEngine OpManager 12.4 124176

12.4

ZohoCorp ManageEngine OpManager 12.4 124178

12.4

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