CVE-2018-6557
Ubuntu Base-Files MOTD Temporary File Handlers Denial of Service and Privilege Escalation
Description
The MOTD update script in the base-files package in Ubuntu 18.04 LTS before 10.1ubuntu2.2, and Ubuntu 18.10 before 10.1ubuntu6 incorrectly handled temporary files. A local attacker could use this issue to cause a denial of service, or possibly escalate privileges if kernel symlink restrictions were disabled.
INFO
Published Date :
Aug. 21, 2018, 4:29 p.m.
Last Modified :
Jan. 18, 2023, 9:22 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
5.9
Exploitability Score :
1.0
Affected Products
The following products are affected by CVE-2018-6557
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.
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-2018-6557.
| URL | Resource |
|---|---|
| http://www.securityfocus.com/bid/105148 | Third Party Advisory VDB Entry |
| http://www.securitytracker.com/id/1041530 | Broken Link Third Party Advisory VDB Entry |
| https://usn.ubuntu.com/3748-1/ | 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-2018-6557 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2018-6557 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 -
Reanalysis by [email protected]
Jan. 18, 2023
Action Type Old Value New Value Removed CVSS V3 NIST AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H Added CVSS V3.1 NIST AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H Changed Reference Type http://www.securitytracker.com/id/1041530 Third Party Advisory, VDB Entry http://www.securitytracker.com/id/1041530 Broken Link, Third Party Advisory, VDB Entry Changed CPE Configuration OR *cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:* OR *cpe:2.3:a:base-files_project:base-files:10.1ubuntu2.2:*:*:*:*:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:* -
Initial Analysis by [email protected]
Nov. 21, 2018
Action Type Old Value New Value Added CVSS V2 (AV:L/AC:M/Au:N/C:P/I:P/A:P) Added CVSS V3 AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://usn.ubuntu.com/3748-1/ No Types Assigned https://usn.ubuntu.com/3748-1/ Vendor Advisory Changed Reference Type http://www.securityfocus.com/bid/105148 No Types Assigned http://www.securityfocus.com/bid/105148 Third Party Advisory, VDB Entry Changed Reference Type http://www.securitytracker.com/id/1041530 No Types Assigned http://www.securitytracker.com/id/1041530 Third Party Advisory, VDB Entry Added CWE CWE-59 Added CPE Configuration OR *cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Aug. 28, 2018
Action Type Old Value New Value Added Reference http://www.securityfocus.com/bid/105148 [No Types Assigned] -
CVE Modified by [email protected]
Aug. 22, 2018
Action Type Old Value New Value Added Reference http://www.securitytracker.com/id/1041530 [No Types Assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2018-6557 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-2018-6557
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.04 }} 0.00%
score
0.05635
percentile