CVE-2020-6214 - Incorrect Authorization

Severity

47%

Complexity

12%

Confidentiality

56%

SAP S/4HANA (Financial Products Subledger), version 100, uses an incorrect authorization object in some reports. Although the affected reports are protected with other authorization objects, exploitation of the vulnerability would allow an authenticated attacker to view, change, or delete data, thereby preventing the proper segregation of duties in the system.

SAP S/4HANA (Financial Products Subledger), version 100, uses an incorrect authorization object in some reports. Although the affected reports are protected with other authorization objects, exploitation of the vulnerability would allow an authenticated attacker to view, change, or delete data, thereby preventing the proper segregation of duties in the system.

CVSS 3.1 Base Score 4.7. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L).

CVSS 2.0 Base Score 6.5. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (AV:N/AC:L/Au:S/C:P/I:P/A:P).

Demo Examples

Incorrect Authorization

CWE-863

The following code could be for a medical records application. It displays a record to already authenticated users, confirming the user's authorization using a value stored in a cookie.


               
}
}
setcookie("role", $role, time()+60*60*2);
die("\n");
DisplayMedicalHistory($_POST['patient_ID']);
die("You are not Authorized to view this record\n");

The programmer expects that the cookie will only be set when getRole() succeeds. The programmer even diligently specifies a 2-hour expiration for the cookie. However, the attacker can easily set the "role" cookie to the value "Reader". As a result, the $role variable is "Reader", and getRole() is never invoked. The attacker has bypassed the authorization system.

Overview

First reported 5 years ago

2020-04-14 19:15:00

Last updated 5 years ago

2020-04-15 17:05:00

Affected Software

SAP S/4HANA 100 for Financial Products Subledger

100
financial_products_subledger

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