Executive Summary

Informations
Name CVE-2021-23240 First vendor Publication 2021-01-12
Vendor Cve Last vendor Modification 2023-11-07

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Overall CVSS Score 7.8
Base Score 7.8 Environmental Score 7.8
impact SubScore 5.9 Temporal Score 7.8
Exploitabality Sub Score 1.8
 
Attack Vector Local Attack Complexity Low
Privileges Required Low User Interaction None
Scope Unchanged Confidentiality Impact High
Integrity Impact High Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:L/AC:M/Au:N/C:P/I:P/A:P)
Cvss Base Score 4.4 Attack Range Local
Cvss Impact Score 6.4 Attack Complexity Medium
Cvss Expoit Score 3.4 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

selinux_edit_copy_tfiles in sudoedit in Sudo before 1.9.5 allows a local unprivileged user to gain file ownership and escalate privileges by replacing a temporary file with a symlink to an arbitrary file target. This affects SELinux RBAC support in permissive mode. Machines without SELinux are not vulnerable.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-23240

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-59 Improper Link Resolution Before File Access ('Link Following')

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 1
Application 1
Application 68
Os 2

Sources (Detail)

https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db560...
https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61...
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedora...
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedora...
Source Url
CONFIRM https://security.netapp.com/advisory/ntap-20210129-0010/
https://www.sudo.ws/stable.html#1.9.5
GENTOO https://security.gentoo.org/glsa/202101-33
MISC https://bugzilla.suse.com/show_bug.cgi?id=CVE-2021-23240

Alert History

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Date Informations
2023-11-07 21:36:06
  • Multiple Updates
2021-09-14 00:23:09
  • Multiple Updates
2021-06-29 21:23:20
  • Multiple Updates
2021-06-28 21:23:16
  • Multiple Updates
2021-05-04 14:06:56
  • Multiple Updates
2021-04-22 03:12:06
  • Multiple Updates
2021-02-10 21:23:30
  • Multiple Updates
2021-02-01 21:23:35
  • Multiple Updates
2021-01-29 12:32:27
  • Multiple Updates
2021-01-27 09:23:23
  • Multiple Updates
2021-01-26 21:23:51
  • Multiple Updates
2021-01-20 09:23:07
  • Multiple Updates
2021-01-15 05:22:56
  • Multiple Updates
2021-01-12 17:23:05
  • Multiple Updates
2021-01-12 13:23:02
  • First insertion