CVE-2018-20835
"Tarsnap Arbitrary File Overwrite Vulnerability"
Description
A vulnerability was found in tar-fs before 1.16.2. An Arbitrary File Overwrite issue exists when extracting a tarball containing a hardlink to a file that already exists on the system, in conjunction with a later plain file with the same name as the hardlink. This plain file content replaces the existing file content.
INFO
Published Date :
April 30, 2019, 7:29 p.m.
Last Modified :
May 3, 2019, 2:49 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
3.9
Public PoC/Exploit Available at Github
CVE-2018-20835 has a 41 public PoC/Exploit
available at Github.
Go to the Public Exploits
tab to see the list.
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-2018-20835
.
URL | Resource |
---|---|
https://github.com/mafintosh/tar-fs/commit/06672828e6fa29ac8551b1b6f36c852a9a3c58a2 | Patch Third Party Advisory |
https://github.com/mafintosh/tar-fs/compare/d590fc7...a35ce2f | Patch Third Party Advisory |
https://hackerone.com/reports/344595 | Exploit Third Party 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).
GitHub Code Scanning Javascript Tutorial
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GitHub Code Scanning Javascript Tutorial
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GitHub Code Scanning Javascript Tutorial
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GitHub Code Scanning Javascript Tutorial
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GitHub Code Scanning Javascript Tutorial
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GitHub Code Scanning Javascript Tutorial
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GitHub Code Scanning Javascript Tutorial
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GitHub Code Scanning Javascript Tutorial
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GitHub Code Scanning Javascript Tutorial
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GitHub Code Scanning Javascript Tutorial
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GitHub Code Scanning Javascript Tutorial
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GitHub Code Scanning Javascript Tutorial
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GitHub Code Scanning Javascript Tutorial
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None
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Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2018-20835
vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2018-20835
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 -
Initial Analysis by [email protected]
May. 03, 2019
Action Type Old Value New Value Added CVSS V2 (AV:N/AC:L/Au:N/C:N/I:P/A:P) Added CVSS V3 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Changed Reference Type https://github.com/mafintosh/tar-fs/commit/06672828e6fa29ac8551b1b6f36c852a9a3c58a2 No Types Assigned https://github.com/mafintosh/tar-fs/commit/06672828e6fa29ac8551b1b6f36c852a9a3c58a2 Patch, Third Party Advisory Changed Reference Type https://github.com/mafintosh/tar-fs/compare/d590fc7...a35ce2f No Types Assigned https://github.com/mafintosh/tar-fs/compare/d590fc7...a35ce2f Patch, Third Party Advisory Changed Reference Type https://hackerone.com/reports/344595 No Types Assigned https://hackerone.com/reports/344595 Exploit, Third Party Advisory Added CWE CWE-20 Added CPE Configuration OR *cpe:2.3:a:tar-fs_project:tar-fs:*:*:*:*:*:*:*:* versions up to (excluding) 1.16.2
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2018-20835
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-2018-20835
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.20 }} 0.03%
score
0.57504
percentile