CVE-2021-23177

Severity CVSS v4.0:

Pending analysis

Type:

CWE-59 Link Following

Publication date:

23/08/2022

Last modified:

03/12/2022

Description

An improper link resolution flaw while extracting an archive can lead to changing the access control list (ACL) of the target of the link. An attacker may provide a malicious archive to a victim user, who would trigger this flaw when trying to extract the archive. A local attacker may use this flaw to change the ACL of a file on the system and gain more privileges.

Impact

Vector 3.x

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.80 HIGH
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x

7.80

Severity 3.x

HIGH

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:a:libarchive:libarchive::::::::		3.5.2 (excluding)
cpe:2.3:o:fedoraproject:fedora:35:::::::*
cpe:2.3:o:redhat:enterprise_linux:8.0:::::::*
cpe:2.3:o:redhat:enterprise_linux_eus:8.6:::::::*
cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems:8.0:::::::*
cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems_eus:8.6:::::::*
cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian:8.0:::::::*
cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian_eus:8.6:::::::*
cpe:2.3:o:redhat:enterprise_linux_server_aus:8.6:::::::*
cpe:2.3:o:redhat:enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions:8.6:::::::*
cpe:2.3:o:redhat:enterprise_linux_server_tus:8.6:::::::*
cpe:2.3:a:redhat:codeready_linux_builder:-:::::::*
cpe:2.3:o:redhat:enterprise_linux:8.0:::::::*
cpe:2.3:o:redhat:enterprise_linux_eus:8.6:::::::*
cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems:8.0:::::::*

To consult the complete list of CPE names with products and versions, see this page

CPE	From	Up to
cpe:2.3:a:libarchive:libarchive::::::::		3.5.2 (excluding)
cpe:2.3:o:fedoraproject:fedora:35:::::::*
cpe:2.3:o:redhat:enterprise_linux:8.0:::::::*
cpe:2.3:o:redhat:enterprise_linux_eus:8.6:::::::*
cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems:8.0:::::::*
cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems_eus:8.6:::::::*
cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian:8.0:::::::*
cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian_eus:8.6:::::::*
cpe:2.3:o:redhat:enterprise_linux_server_aus:8.6:::::::*
cpe:2.3:o:redhat:enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions:8.6:::::::*
cpe:2.3:o:redhat:enterprise_linux_server_tus:8.6:::::::*
cpe:2.3:a:redhat:codeready_linux_builder:-:::::::*
cpe:2.3:o:redhat:enterprise_linux:8.0:::::::*
cpe:2.3:o:redhat:enterprise_linux_eus:8.6:::::::*
cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems:8.0:::::::*

CVE-2021-23177

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools