Executive Summary

Informations
Name CVE-2024-8158 First vendor Publication 2024-08-25
Vendor Cve Last vendor Modification 2024-09-12

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Overall CVSS Score 6.5
Base Score 6.5 Environmental Score 6.5
impact SubScore 3.6 Temporal Score 6.5
Exploitabality Sub Score 2.8
 
Attack Vector Network Attack Complexity Low
Privileges Required Low User Interaction None
Scope Unchanged Confidentiality Impact None
Integrity Impact High Availability Impact None
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector :
Cvss Base Score N/A Attack Range N/A
Cvss Impact Score N/A Attack Complexity N/A
Cvss Expoit Score N/A Authentication N/A
Calculate full CVSS 2.0 Vectors scores

Detail

A bug in the 9p authentication implementation within lib9p allows an attacker with an existing valid user within the configured auth server to impersonate any other valid filesystem user.

This is due to lib9p not properly verifying that the uname given in the Tauth and Tattach 9p messages matches the client UID returned from the factotum authentication handshake.

The only filesystem making use of these functions within the base 9front systems is the experimental hjfs disk filesystem, other disk filesystems (cwfs and gefs) are not affected by this bug.

This bug was inherited from Plan 9 and is present in all versions of 9front and is remedied fully in commit 9645ae07eb66a59015e3e118d0024790c37400da.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-8158

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-639 Access Control Bypass Through User-Controlled Key

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 1

Sources (Detail)

https://git.9front.org/plan9front/plan9front/07aa9bfeef55ca987d411115adcfbbd4...
Source Url

Alert History

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0
1
2
Date Informations
2024-09-13 00:27:39
  • Multiple Updates
2024-08-26 17:27:26
  • Multiple Updates
2024-08-26 05:27:27
  • First insertion