CVE Vulnerability

CVE-2018-20835

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.

6.4 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 10 / Impact : 4.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact PARTIAL

Scope

7.5 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References
Link Resource
https://hackerone.com/reports/344595 Exploit Third Party Advisory
https://github.com/mafintosh/tar-fs/compare/d590fc7...a35ce2f Patch Third Party Advisory
https://github.com/mafintosh/tar-fs/commit/06672828e6fa29ac8551b1b6f36c852a9a3c58a2 Patch Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:tar-fs_project:tar-fs:*:*:*:*:*:*:*:*
Information

Published : 2019-04-30 07:29

Updated : 2019-05-03 02:49

NVD link : CVE-2018-20835

Mitre link : CVE-2018-20835

Products Affected
No products.
CWE
CWE-20