// For flags

CVE-2023-30571

 

Severity Score

5.3
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

Libarchive through 3.6.2 can cause directories to have world-writable permissions. The umask() call inside archive_write_disk_posix.c changes the umask of the whole process for a very short period of time; a race condition with another thread can lead to a permanent umask 0 setting. Such a race condition could lead to implicit directory creation with permissions 0777 (without the sticky bit), which means that any low-privileged local user can delete and rename files inside those directories.

Libarchive hasta la versión 3.6.2 puede hacer que los directorios tengan permisos de escritura global. La llamada "umask()" dentro del archivo "archive_write_disk_posix.c" cambia la máscara de usuario de todo el proceso durante un periodo de tiempo muy corto; una condición de carrera con otro hilo puede llevar a un ajuste permanente de la máscara de usuario a 0. Tal condición de carrera podría llevar a la creación implícita de directorios con permisos 0777, sin el bit adhesivo ("sticky bit"), lo que significa que cualquier usuario local con pocos privilegios puede borrar y renombrar archivos dentro de esos directorios.

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
High
Attack Vector
Local
Attack Complexity
High
Privileges Required
Low
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None
Attack Vector
Local
Attack Complexity
High
Privileges Required
Low
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2023-04-12 CVE Reserved
  • 2023-05-29 CVE Published
  • 2023-05-30 EPSS Updated
  • 2024-08-02 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Libarchive
Search vendor "Libarchive"
 Libarchive
Search vendor "Libarchive" for product "Libarchive"
 <= 3.6.2
Search vendor "Libarchive" for product "Libarchive" and version " <= 3.6.2"
-
Affected