CVE Vulnerability

CVE-2021-43413

An issue was discovered in GNU Hurd before 0.9 20210404-9. A single pager port is shared among everyone who mmaps a file, allowing anyone to modify any files that they can read. This can be trivially exploited to get full root access.

9 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 8 / Impact : 10

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

Scope

8.8 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://lists.gnu.org/archive/html/bug-hurd/2021-05/msg00079.html Exploit Mailing List
https://lists.gnu.org/archive/html/bug-hurd/2002-11/msg00263.html Mailing List Vendor Advisory
https://www.mail-archive.com/bug-hurd@gnu.org/msg32113.html Vendor Advisory
https://lists.gnu.org/archive/html/bug-hurd/2005-06/msg00191.html Mailing List Vendor Advisory
Configurations

Configuration 1

cpe:2.3:a:gnu:hurd:*:*:*:*:*:*:*:*
Information

Published : 2021-11-07 06:15

Updated : 2021-11-09 08:37

NVD link : CVE-2021-43413

Mitre link : CVE-2021-43413

Products Affected
No products.
CWE
NVD-CWE-noinfo