CVE-2018-19788

polkit: Improper handling of user with uid > INT_MAX leading to authentication bypass

Severity Score

8.8

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Attend

*SSVC

Descriptions

A flaw was found in PolicyKit (aka polkit) 0.115 that allows a user with a uid greater than INT_MAX to successfully execute any systemctl command.

Se ha detectado un fallo en PolicyKit (también conocido como polkit) 0.115 que permite que un usuario con una uid mayor que INT_MAX ejecute con éxito cualquier comando systemctl.

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Local

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

Single

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:Attend

Exploitation

Poc

Automatable

Tech. Impact

Total

* Organization's Worst-case Scenario

Timeline

2018-12-02 CVE Reserved
2018-12-03 CVE Published
2018-12-07 First Exploit
2024-06-04 EPSS Updated
2024-08-29 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-20: Improper Input Validation
CWE-287: Improper Authentication

CAPEC

References (14)

URL	Tag	Source
https://bugs.debian.org/915332	Issue Tracking
https://lists.debian.org/debian-lts-announce/2019/01/msg00021.html	Mailing List

URL	Date	SRC
https://github.com/AbsoZed/CVE-2018-19788	2018-12-07
https://github.com/d4gh0s7/CVE-2018-19788	2018-12-10
https://github.com/jhlongjr/CVE-2018-19788	2018-12-31
https://gitlab.freedesktop.org/polkit/polkit/issues/74	2024-08-29

URL	Date	SRC

URL	Date	SRC
https://access.redhat.com/errata/RHSA-2019:2046	2019-08-06
https://access.redhat.com/errata/RHSA-2019:3232	2019-08-06
https://security.gentoo.org/glsa/201908-14	2019-08-06
https://usn.ubuntu.com/3861-1	2019-08-06
https://usn.ubuntu.com/3861-2	2019-08-06
https://www.debian.org/security/2018/dsa-4350	2019-08-06
https://access.redhat.com/security/cve/CVE-2018-19788	2019-10-29
https://bugzilla.redhat.com/show_bug.cgi?id=1655925	2019-10-29

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Polkit Project Search vendor "Polkit Project"		Polkit Search vendor "Polkit Project" for product "Polkit"				0.115 Search vendor "Polkit Project" for product "Polkit" and version "0.115"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				8.0 Search vendor "Debian" for product "Debian Linux" and version "8.0"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				9.0 Search vendor "Debian" for product "Debian Linux" and version "9.0"		-		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				12.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "12.04"		esm		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				14.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "14.04"		lts		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				16.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "16.04"		lts		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				18.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "18.04"		lts		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				18.10 Search vendor "Canonical" for product "Ubuntu Linux" and version "18.10"		-		Affected