CVE-2018-14036

accountsservice: insufficient path check in user_change_icon_file_authorized_cb() in user.c

Severity Score

6.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Directory Traversal with ../ sequences occurs in AccountsService before 0.6.50 because of an insufficient path check in user_change_icon_file_authorized_cb() in user.c.

IBM iNotes en versiones anteriores a la 8.5.3 Fix Pack 6 y versiones 9.x anteriores a la 9.0.1 permite que atacantes remotos omitan el mecanismo de filtrado remoto de imágenes y obtener información sensible mediante un mensaje de email manipulado. IBM X-Force ID: 83371.

Kevin Backhouse discovered that AccountsService incorrectly dropped privileges. A local user could possibly use this issue to cause AccountsService to crash or hang, resulting in a denial of service. Kevin Backhouse discovered that AccountsService incorrectly handled reading .pam_environment files. A local user could possibly use this issue to cause AccountsService to crash or hang, resulting in a denial of service. This issue only affected Ubuntu 20.04 LTS and Ubuntu 20.10. Various other issues were also addressed.

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Attack Vector

Network

Attack Complexity

Low

Authentication

Single

Confidentiality

Partial

Integrity

None

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2018-07-13 CVE Reserved
2018-07-13 CVE Published
2024-08-05 CVE Updated
2024-08-05 First Exploit
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

CAPEC

References (7)

URL	Tag	Source
http://www.securityfocus.com/bid/104757	Third Party Advisory

URL	Date	SRC
http://www.openwall.com/lists/oss-security/2018/07/02/2	2024-08-05
https://bugs.freedesktop.org/show_bug.cgi?id=107085	2024-08-05
https://bugzilla.suse.com/show_bug.cgi?id=1099699	2024-08-05

URL	Date	SRC
https://cgit.freedesktop.org/accountsservice/commit/?id=f9abd359f71a5bce421b9ae23432f539a067847a	2018-09-06

URL	Date	SRC
https://access.redhat.com/security/cve/CVE-2018-14036	2018-10-30
https://bugzilla.redhat.com/show_bug.cgi?id=1601019	2018-10-30

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Freedesktop Search vendor "Freedesktop"		Accountsservice Search vendor "Freedesktop" for product "Accountsservice"				< 0.6.50 Search vendor "Freedesktop" for product "Accountsservice" and version " < 0.6.50"		-		Affected