CVE-2021-27616 - Incorrect Authorization

Severity

78%

Complexity

18%

Confidentiality

98%

Under certain conditions, SAP Business One Hana Chef Cookbook, versions - 8.82, 9.0, 9.1, 9.2, 9.3, 10.0, used to install SAP Business One for SAP HANA, allows an attacker to exploit an insecure temporary backup path and to access information which would otherwise be restricted, resulting in Information Disclosure vulnerability highly impacting the confidentiality, integrity and availability of the application.

CVSS 3.1 Base Score 7.8. CVSS Attack Vector: local. CVSS Attack Complexity: low. CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).

CVSS 2.0 Base Score 7.2. CVSS Attack Vector: local. CVSS Attack Complexity: low. CVSS Vector: (AV:L/AC:L/Au:N/C:C/I:C/A:C).

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

Type

SAP Business One

First reported 4 years ago

2021-05-11 15:15:00

Last updated 4 years ago

2021-05-21 16:16:00

Affected Software

SAP Business One 9.2

9.2

SAP Business One 9.3

9.3

SAP Business One 10.0

10.0

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