5.3
MEDIUM
CVE-2018-1113
Fedora and Red Hat Enterprise Linux Setup Nologin ShellEscalation
Description

setup before version 2.11.4-1.fc28 in Fedora and Red Hat Enterprise Linux added /sbin/nologin and /usr/sbin/nologin to /etc/shells. This violates security assumptions made by pam_shells and some daemons which allow access based on a user's shell being listed in /etc/shells. Under some circumstances, users which had their shell changed to /sbin/nologin could still access the system.

INFO

Published Date :

July 3, 2018, 1:29 a.m.

Last Modified :

Oct. 9, 2019, 11:38 p.m.

Source :

[email protected]

Remotely Exploitable :

No

Impact Score :

3.4

Exploitability Score :

1.8
Affected Products

The following products are affected by CVE-2018-1113 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Redhat enterprise_linux_desktop
2 Redhat enterprise_linux_server
3 Redhat enterprise_linux_workstation
4 Redhat setup
: Total Affected Vendor : 1 | Products : 4
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2018-1113.

URL Resource
https://access.redhat.com/errata/RHBA-2019:0327 Vendor Advisory
https://access.redhat.com/errata/RHSA-2018:3249 Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-1113 Issue Tracking Vendor Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2018-1113 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2018-1113 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Oct. 09, 2019

    Action Type Old Value New Value
    Added CVSS V3 Red Hat, Inc. AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L
    Added CWE Red Hat, Inc. CWE-285
  • CWE Remap by [email protected]

    Oct. 03, 2019

    Action Type Old Value New Value
    Changed CWE CWE-284 CWE-200 CWE-732
  • Modified Analysis by [email protected]

    Apr. 26, 2019

    Action Type Old Value New Value
    Changed Reference Type https://access.redhat.com/errata/RHSA-2018:3249 No Types Assigned https://access.redhat.com/errata/RHSA-2018:3249 Vendor Advisory
    Changed Reference Type https://access.redhat.com/errata/RHBA-2019:0327 No Types Assigned https://access.redhat.com/errata/RHBA-2019:0327 Vendor Advisory
    Added CPE Configuration OR *cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Apr. 24, 2019

    Action Type Old Value New Value
    Added Reference https://access.redhat.com/errata/RHBA-2019:0327 [No Types Assigned]
  • CVE Modified by [email protected]

    Oct. 31, 2018

    Action Type Old Value New Value
    Added Reference https://access.redhat.com/errata/RHSA-2018:3249 [No Types Assigned]
  • Initial Analysis by [email protected]

    Sep. 05, 2018

    Action Type Old Value New Value
    Added CVSS V2 (AV:L/AC:L/Au:N/C:P/I:P/A:P)
    Added CVSS V3 AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
    Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-1113 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-1113 Issue Tracking, Vendor Advisory
    Added CWE CWE-284
    Added CPE Configuration AND OR *cpe:2.3:a:redhat:setup:*:*:*:*:*:*:*:* versions up to (excluding) 2.11.4 OR cpe:2.3:o:fedoraproject:fedora:-:*:*:*:*:*:*:* cpe:2.3:o:redhat:enterprise_linux:-:*:*:*:*:*:*:*
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2018-1113 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2018-1113 weaknesses.

CAPEC-1: Accessing Functionality Not Properly Constrained by ACLs Accessing Functionality Not Properly Constrained by ACLs CAPEC-5: Blue Boxing Blue Boxing CAPEC-13: Subverting Environment Variable Values Subverting Environment Variable Values CAPEC-17: Using Malicious Files Using Malicious Files CAPEC-39: Manipulating Opaque Client-based Data Tokens Manipulating Opaque Client-based Data Tokens CAPEC-45: Buffer Overflow via Symbolic Links Buffer Overflow via Symbolic Links CAPEC-51: Poison Web Service Registry Poison Web Service Registry CAPEC-59: Session Credential Falsification through Prediction Session Credential Falsification through Prediction CAPEC-60: Reusing Session IDs (aka Session Replay) Reusing Session IDs (aka Session Replay) CAPEC-76: Manipulating Web Input to File System Calls Manipulating Web Input to File System Calls CAPEC-77: Manipulating User-Controlled Variables Manipulating User-Controlled Variables CAPEC-87: Forceful Browsing Forceful Browsing CAPEC-104: Cross Zone Scripting Cross Zone Scripting CAPEC-127: Directory Indexing Directory Indexing CAPEC-402: Bypassing ATA Password Security Bypassing ATA Password Security CAPEC-647: Collect Data from Registries Collect Data from Registries CAPEC-668: Key Negotiation of Bluetooth Attack (KNOB) Key Negotiation of Bluetooth Attack (KNOB) CAPEC-1: Accessing Functionality Not Properly Constrained by ACLs Accessing Functionality Not Properly Constrained by ACLs CAPEC-17: Using Malicious Files Using Malicious Files CAPEC-60: Reusing Session IDs (aka Session Replay) Reusing Session IDs (aka Session Replay) CAPEC-61: Session Fixation Session Fixation CAPEC-62: Cross Site Request Forgery Cross Site Request Forgery CAPEC-122: Privilege Abuse Privilege Abuse CAPEC-127: Directory Indexing Directory Indexing CAPEC-180: Exploiting Incorrectly Configured Access Control Security Levels Exploiting Incorrectly Configured Access Control Security Levels CAPEC-206: Signing Malicious Code Signing Malicious Code CAPEC-234: Hijacking a privileged process Hijacking a privileged process CAPEC-642: Replace Binaries Replace Binaries
Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.06 }} 0.01%

score

0.21072

percentile

CVSS30 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
: