CVE Vulnerability

CVE-2021-40511

OBDA systems’ Mastro 1.0 is vulnerable to XML Entity Expansion (aka “billion laughs”) attack allowing denial of service.

5 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 10 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

Scope

7.5 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://www.obdasystems.com/mastro Product Vendor Advisory
https://www.cyberiskvision.com/advisory/ Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:obdasystems:mastro:1.0:*:*:*:*:*:*:*
Information

Published : 2022-06-21 05:15

Updated : 2022-06-28 07:11

NVD link : CVE-2021-40511

Mitre link : CVE-2021-40511

Products Affected
No products.
CWE
CWE-776

Improper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion')