CVE-2019-3689

nfs-utils: root-owned files stored in insecure /var/lib/nfs directory

Severity Score

9.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The nfs-utils package in SUSE Linux Enterprise Server 12 before and including version 1.3.0-34.18.1 and in SUSE Linux Enterprise Server 15 before and including version 2.1.1-6.10.2 the directory /var/lib/nfs is owned by statd:nogroup. This directory contains files owned and managed by root. If statd is compromised, it can therefore trick processes running with root privileges into creating/overwriting files anywhere on the system.

El paquete nfs-utils en SUSE Linux Enterprise Server 12 en versiones anteriores e incluyendo la versión 1.3.0-34.18.1 y en SUSE Linux Enterprise Server 15 en versiones anteriores e incluyendo la versión 2.1.1-6.10.2, el directorio /var/lib/nfs es propiedad de statd:nogroup. Este directorio contiene archivos de propiedad y administrados por root. Si statd esta comprometido, puede engañar a los procesos que se ejecutan con privilegios de root para crear/sobrescribir archivos en cualquier parte del sistema si fs.protected_symlinks no está configurado.

*Credits: Malte Kraus of SUSE

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

Low

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2019-01-03 CVE Reserved
2019-09-19 CVE Published
2024-09-10 EPSS Updated
2024-09-17 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-276: Incorrect Default Permissions

CAPEC

References (6)

URL	Tag	Source
https://git.linux-nfs.org/?p=steved/nfs-utils.git%3Ba=commitdiff%3Bh=fee2cc29e888f2ced6a76990923aef19d326dc0e	X_refsource_misc
https://lists.debian.org/debian-lts-announce/2019/10/msg00026.html	Mailing List

URL	Date	SRC

URL	Date	SRC
https://bugzilla.suse.com/show_bug.cgi?id=1150733	2023-11-07

URL	Date	SRC
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00071.html	2023-11-07
http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00006.html	2023-11-07
https://usn.ubuntu.com/4400-1	2023-11-07

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Linux-nfs Search vendor "Linux-nfs"	Nfs-utils Search vendor "Linux-nfs" for product "Nfs-utils"	<= 1.3.0-34.18.1 Search vendor "Linux-nfs" for product "Nfs-utils" and version " <= 1.3.0-34.18.1"	-	Affected	in	Suse Search vendor "Suse"	Linux Enterprise Server Search vendor "Suse" for product "Linux Enterprise Server"	12 Search vendor "Suse" for product "Linux Enterprise Server" and version "12"	-	Safe
Linux-nfs Search vendor "Linux-nfs"	Nfs-utils Search vendor "Linux-nfs" for product "Nfs-utils"	<= 2.1.1-6.10.2 Search vendor "Linux-nfs" for product "Nfs-utils" and version " <= 2.1.1-6.10.2"	-	Affected	in	Suse Search vendor "Suse"	Linux Enterprise Server Search vendor "Suse" for product "Linux Enterprise Server"	15 Search vendor "Suse" for product "Linux Enterprise Server" and version "15"	-	Safe