CVE-2021-32556

apport get_modified_conffiles() function command injection

Severity Score

3.3

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

It was discovered that the get_modified_conffiles() function in backends/packaging-apt-dpkg.py allowed injecting modified package names in a manner that would confuse the dpkg(1) call.

Se ha detectado que la función get_modified_conffiles() en el archivo backends/packaging-apt-dpkg.py permitía inyectar nombres de paquetes modificados de forma que se confundía la llamada a dpkg(1)

*Credits: maik@secfault-security.com (@fktio)

CVSS Scores

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

None

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

Low

Integrity

None

Availability

None

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-05-10 CVE Reserved
2021-06-12 CVE Published
2023-03-08 EPSS Updated
2024-09-16 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://bugs.launchpad.net/ubuntu/+source/apport/+bug/1917904	2021-06-23

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Canonical Search vendor "Canonical"		Apport Search vendor "Canonical" for product "Apport"				>= 2.14.1-0ubuntu3 < 2.14.1-0ubuntu3.29\+esm7 Search vendor "Canonical" for product "Apport" and version " >= 2.14.1-0ubuntu3 < 2.14.1-0ubuntu3.29\+esm7"		-		Affected
Canonical Search vendor "Canonical"		Apport Search vendor "Canonical" for product "Apport"				>= 2.20.1 < 2.20.1-0ubuntu2.30\+esm1 Search vendor "Canonical" for product "Apport" and version " >= 2.20.1 < 2.20.1-0ubuntu2.30\+esm1"		-		Affected
Canonical Search vendor "Canonical"		Apport Search vendor "Canonical" for product "Apport"				>= 2.20.9 < 2.20.9-0ubuntu7.24 Search vendor "Canonical" for product "Apport" and version " >= 2.20.9 < 2.20.9-0ubuntu7.24"		-		Affected
Canonical Search vendor "Canonical"		Apport Search vendor "Canonical" for product "Apport"				>= 2.20.11-0ubuntu27 < 2.20.11-0ubuntu27.18 Search vendor "Canonical" for product "Apport" and version " >= 2.20.11-0ubuntu27 < 2.20.11-0ubuntu27.18"		-		Affected
Canonical Search vendor "Canonical"		Apport Search vendor "Canonical" for product "Apport"				>= 2.20.11-0ubuntu50 < 2.20.11-0ubuntu50.7 Search vendor "Canonical" for product "Apport" and version " >= 2.20.11-0ubuntu50 < 2.20.11-0ubuntu50.7"		-		Affected
Canonical Search vendor "Canonical"		Apport Search vendor "Canonical" for product "Apport"				>= 2.20.11-0ubuntu65 < 2.20.11-0ubuntu65.1 Search vendor "Canonical" for product "Apport" and version " >= 2.20.11-0ubuntu65 < 2.20.11-0ubuntu65.1"		-		Affected