Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2021-33393

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
09/06/2021
Last modified:
12/07/2022

Description

lfs/backup in IPFire 2.25-core155 does not ensure that /var/ipfire/backup/bin/backup.pl is owned by the root account. It might be owned by an unprivileged account, which could potentially be used to install a Trojan horse backup.pl script that is later executed by root. Similar problems with the ownership/permissions of other files may be present as well.

Impact

Vector 3.x
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 8.80 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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

Base Score 3.x
8.80
Severity 3.x
HIGH
Vector 2.0
AV:N/AC:L/Au:S/C:C/I:C/A:C CVSS v2.0 Severity and Metrics:

Base Score: 9.00 HIGH
Vector: AV:N/AC:L/Au:S/C:C/I:C/A:C

Attack Vector (AV): Network
Attack Complexity (AC): Low
Authentication (Au): Single
Confidentiality (C): Complete
Integrity (I): Complete
Availability (A): Complete

Base Score 2.0
9.00
Severity 2.0
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:ipfire:ipfire:*:*:*:*:*:*:*:* 2.25 (excluding)
cpe:2.3:a:ipfire:ipfire:2.25:core_update141:*:*:*:*:*:*
cpe:2.3:a:ipfire:ipfire:2.25:core_update142:*:*:*:*:*:*
cpe:2.3:a:ipfire:ipfire:2.25:core_update143:*:*:*:*:*:*
cpe:2.3:a:ipfire:ipfire:2.25:core_update144:*:*:*:*:*:*
cpe:2.3:a:ipfire:ipfire:2.25:core_update145:*:*:*:*:*:*
cpe:2.3:a:ipfire:ipfire:2.25:core_update146:*:*:*:*:*:*
cpe:2.3:a:ipfire:ipfire:2.25:core_update147:*:*:*:*:*:*
cpe:2.3:a:ipfire:ipfire:2.25:core_update148:*:*:*:*:*:*
cpe:2.3:a:ipfire:ipfire:2.25:core_update149:*:*:*:*:*:*
cpe:2.3:a:ipfire:ipfire:2.25:core_update150:*:*:*:*:*:*
cpe:2.3:a:ipfire:ipfire:2.25:core_update151:*:*:*:*:*:*
cpe:2.3:a:ipfire:ipfire:2.25:core_update152:*:*:*:*:*:*
cpe:2.3:a:ipfire:ipfire:2.25:core_update155:*:*:*:*:*:*
cpe:2.3:a:ipfire:ipfire:2.25:core_update156:*:*:*:*:*:*

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


References to Advisories, Solutions, and Tools