CVE-2021-40511

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2021-40511
OBDA systems’ Mastro 1.0 is vulnerable to XML Entity Expansion (aka “billion laughs”) attack allowing denial of service.

7.5 /10

CVSS v3 : 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

5.0 /10

CVSS v2.0 : MEDIUM

V2 Legend

Vector : AV:N/AC:L/Au:N/C:N/I:N/A:P

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

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

Configuration 1 (hide)

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

28 Jun 2022, 19:11

Type Values Removed Values Added
First Time Obdasystems mastro
Obdasystems
CVSS v2 : unknown
v3 : unknown 		v2 : 5.0
v3 : 7.5
CPE cpe:2.3:a:obdasystems:mastro:1.0:*:*:*:*:*:*:*
References (MISC) https://www.cyberiskvision.com/advisory/ - (MISC) https://www.cyberiskvision.com/advisory/ - Third Party Advisory
References (MISC) https://www.obdasystems.com/mastro - (MISC) https://www.obdasystems.com/mastro - Product, Vendor Advisory
CWE CWE-776

21 Jun 2022, 17:15

Type Values Removed Values Added
New CVE
Information

Published : 2022-06-21 17:15

Updated : 2023-12-10 14:22

NVD link : CVE-2021-40511

Mitre link : CVE-2021-40511

CVE.ORG link : CVE-2021-40511

JSON object : View

Products Affected

obdasystems

  • mastro
CWE
CWE-776

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