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.

CVSS v3.0 8.8 HIGH
CVSS v2.0 9.0 HIGH

8.8^/10

CVSS v3.0 : HIGH

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

9.0^/10

CVSS v2.0 : HIGH

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

Exploitability : 8.0 / Impact : 10.0

Access Vector NETWORK

Access Complexity LOW

Authentication SINGLE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
https://lists.gnu.org/archive/html/bug-hurd/2021-05/msg00079.html	Exploit Mailing List Vendor Advisory
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 (hide)

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

Information

Published : 2021-11-07 18:15

Updated : 2021-11-09 20:37

NVD link : CVE-2021-43413

Mitre link : CVE-2021-43413

JSON object : View

Products Affected

gnu

hurd

CWE

NVD-CWE-noinfo

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