CVE-2021-31998

inn: %post calls user owned file allowing local privilege escalation to root

Severity Score

7.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A Incorrect Default Permissions vulnerability in the packaging of inn of SUSE Linux Enterprise Server 11-SP3; openSUSE Backports SLE-15-SP2, openSUSE Leap 15.2 allows local attackers to escalate their privileges from the news user to root. This issue affects: SUSE Linux Enterprise Server 11-SP3 inn version inn-2.4.2-170.21.3.1 and prior versions. openSUSE Backports SLE-15-SP2 inn versions prior to 2.6.2. openSUSE Leap 15.2 inn versions prior to 2.6.2.

Una vulnerabilidad de Permisos por Defecto Incorrectos en el empaquetado de inn de SUSE Linux Enterprise Server versión11-SP3; openSUSE Backports versión SLE-15-SP2, openSUSE Leap versión 15.2 permite a atacantes locales escalar sus privilegios del usuario de noticias a root. Este problema afecta a: SUSE Linux Enterprise Server versión 11-SP3 versión inn-2.4.2-170.21.3.1 y versiones anteriores. openSUSE Backports SLE-15-SP2 versiones inn anteriores a 2.6.2. openSUSE Leap 15.2 versiones inn anteriores a 2.6.2

*Credits: Johannes Segitz of SUSE

CVSS Scores

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

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

High

Integrity

Low

Availability

None

Attack Vector

Local

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

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

CWE

CWE-276: Incorrect Default Permissions

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC
https://bugzilla.suse.com/show_bug.cgi?id=1182321	2024-09-16

URL	Date	SRC

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Opensuse Search vendor "Opensuse"	Inn Search vendor "Opensuse" for product "Inn"	<= 2.4.2-170.21.3.1 Search vendor "Opensuse" for product "Inn" and version " <= 2.4.2-170.21.3.1"	-	Affected	in	Suse Search vendor "Suse"	Linux Enterprise Server Search vendor "Suse" for product "Linux Enterprise Server"	11 Search vendor "Suse" for product "Linux Enterprise Server" and version "11"	sp3	Safe
Opensuse Search vendor "Opensuse"	Inn Search vendor "Opensuse" for product "Inn"	< 2.6.2 Search vendor "Opensuse" for product "Inn" and version " < 2.6.2"	-	Affected	in	Opensuse Search vendor "Opensuse"	Backports Sle Search vendor "Opensuse" for product "Backports Sle"	15.0 Search vendor "Opensuse" for product "Backports Sle" and version "15.0"	sp2	Safe
Opensuse Search vendor "Opensuse"	Inn Search vendor "Opensuse" for product "Inn"	< 2.6.2 Search vendor "Opensuse" for product "Inn" and version " < 2.6.2"	-	Affected	in	Opensuse Search vendor "Opensuse"	Leap Search vendor "Opensuse" for product "Leap"	15.2 Search vendor "Opensuse" for product "Leap" and version "15.2"	-	Safe