CVE-2019-14615 - Exposure of Sensitive Information to an Unauthorized Actor

Severity

55%

Complexity

18%

Confidentiality

60%

Insufficient control flow in certain data structures for some Intel(R) Processors with Intel(R) Processor Graphics may allow an unauthenticated user to potentially enable information disclosure via local access.

Insufficient control flow in certain data structures for some Intel(R) Processors with Intel(R) Processor Graphics may allow an unauthenticated user to potentially enable information disclosure via local access.

CVSS 3.1 Base Score 5.5. CVSS Attack Vector: local. CVSS Attack Complexity: low. CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N).

CVSS 2.0 Base Score 1.9. CVSS Attack Vector: local. CVSS Attack Complexity: medium. CVSS Vector: (AV:L/AC:M/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

First reported 5 years ago

2020-01-17 18:15:00

Last updated 5 years ago

2020-02-20 23:15:00

Affected Software

Canonical Ubuntu Linux 14.04 LTS (Long-Term Support)

14.04

Canonical Ubuntu Linux 16.04 LTS (Long-Term Support)

16.04

Canonical Ubuntu Linux 18.04 LTS Edition

18.04

Canonical Ubuntu Linux 19.10

19.10

Intel Atom E3805

Intel Atom E3815

Intel Atom E3825

Intel Atom E3826

Intel Atom E3827

Intel Atom E3845

Intel Atom E620

Intel Atom E620t

Intel Atom E640

Intel Atom E640t

Intel Atom E660

Intel Atom E660t

Intel Atom E680

Intel Atom E680t

Intel Atom X3-c3130

Intel Atom X3-c3200rk

Intel Atom X3-c3230rk

Intel Atom X3-c3405

Intel Atom X3-c3445

Intel Atom X5-z8300

Intel Atom X5-z8330

Intel Atom X5-z8500

Intel Atom X7-z8700

Intel Atom Z2420

Intel Atom Z2460

Intel Atom Z2480

Intel Atom Z2520

Intel Atom Z2560

Intel Atom Z2580

Intel Atom Z2760

Intel Atom Z3460

Intel Atom Z3480

Intel Atom Z3530

Intel Atom Z3560

Intel Atom Z3570

Intel Atom Z3580

Intel Atom Z3590

Intel Atom Z3735d

Intel Atom Z3735e

Intel Atom Z3735f

Intel Atom Z3735g

Intel Atom Z3736f

Intel Atom Z3736g

Intel Atom Z3740

Intel Atom Z3740d

Intel Atom Z3745

Intel Atom Z3745d

Intel Atom Z3770

Intel Atom Z3770d

Intel Atom Z3775

Intel Atom Z3775d

Intel Atom Z3785

Intel Atom Z3795

Intel Celeron J4005

j4005

Intel Celeron J4105

j4105

Intel Celeron N4000

n4000

Intel Celeron N4100

n4100

Intel Celeron G3900

Intel Celeron G3930

Intel Celeron G3930T

Intel Celeron G3950

Intel Celeron G4900

Intel Celeron G4900T

Intel Celeron G4920

Intel Celeron G4930

Intel Celeron G4930T

Intel Celeron G4950

Intel Celeron J J1750

j1750

Intel Celeron J J1800

j1800

Intel Celeron J J1850

j1850

Intel Celeron J J1900

j1900

Intel Celeron J J3060

j3060

Intel Celeron J J3160

j3160

Intel Celeron J J3355

j3355

Intel Celeron J J3455

j3455

Intel Celeron J J4005

j4005

Intel Celeron J J4105

j4105

Intel Celeron J1750

Intel Celeron J1800

Intel Celeron J1850

Intel Celeron J1900

Intel Celeron J3355e

Intel Celeron J4025

Intel Celeron J4125

Intel Celeron N N2805

n2805

Intel Celeron N N2806

n2806

Intel Celeron N N2807

n2807

Intel Celeron N N2808

n2808

Intel Celeron N N2810

n2810

Intel Celeron N N2815

n2815

Intel Celeron N N2820

n2820

Intel Celeron N N2830

n2830

Intel Celeron N N2840

n2840

Intel Celeron N N2910

n2910

Intel Celeron N N2920

n2920

Intel Celeron N N2930

n2930

Intel Celeron N N2940

n2940

Intel Celeron N N3000

n3000

Intel Celeron N N3010

n3010

Intel Celeron N N3050

n3050

Intel Celeron N N3060

n3060

Intel Celeron N N3150

n3150

Intel Celeron N N3160

n3160

Intel Celeron N N3350

n3350

Intel Celeron N N3450

n3450

Intel Celeron N N4000

n4000

Intel Celeron N N4100

n4100

Intel Celeron N2805

Intel Celeron N2806

Intel Celeron N2807

Intel Celeron N2808

Intel Celeron N2810

Intel Celeron N2815

Intel Celeron N2820

Intel Celeron N2910

Intel Celeron N2920

Intel Celeron N3010

Intel Celeron N3050

Intel Celeron N3060

Intel Celeron N3150

Intel Celeron N3160

Intel Celeron N3350e

Intel Celeron N4020

Intel Celeron N4120

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