CVE Vulnerability

CVE-2018-20834

A vulnerability was found in node-tar before version 4.4.2 (excluding version 2.2.2). 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. A patch has been applied to node-tar v2.2.2).

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/npm/node-tar/compare/58a8d43...a5f7779 Patch Third Party Advisory
https://github.com/npm/node-tar/commit/b0c58433c22f5e7fe8b1c76373f27e3f81dcd4c8 Patch Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:1821
https://github.com/npm/node-tar/commit/7ecef07da6a9e72cc0c4d0c9c6a8e85b6b52395d
https://nvd.nist.gov/vuln/detail/CVE-2018-20834
https://github.com/npm/node-tar/commits/v2.2.2
Configurations

Configuration 1

cpe:2.3:a:node-tar_project:node-tar:*:*:*:*:*:*:*:*
cpe:2.3:a:node-tar_project:node-tar:*:*:*:*:*:*:*:*
Information

Published : 2019-04-30 07:29

Updated : 2019-09-04 08:15

NVD link : CVE-2018-20834

Mitre link : CVE-2018-20834

Products Affected
No products.
CWE
CWE-59