Executive Summary



This Alert is flagged as TOP 25 Common Weakness Enumeration from CWE/SANS. For more information, you can read this.
Informations
Name CVE-2019-9686 First vendor Publication 2019-03-11
Vendor Cve Last vendor Modification 2020-11-09

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Overall CVSS Score 8.8
Base Score 8.8 Environmental Score 8.8
impact SubScore 5.9 Temporal Score 8.8
Exploitabality Sub Score 2.8
 
Attack Vector Network Attack Complexity Low
Privileges Required None User Interaction Required
Scope Unchanged Confidentiality Impact High
Integrity Impact High Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:M/Au:N/C:C/I:C/A:C)
Cvss Base Score 9.3 Attack Range Network
Cvss Impact Score 10 Attack Complexity Medium
Cvss Expoit Score 8.6 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

pacman before 5.1.3 allows directory traversal when installing a remote package via a specified URL "pacman -U " due to an unsanitized file name received from a Content-Disposition header. pacman renames the downloaded package file to match the name given in this header. However, pacman did not sanitize this name, which may contain slashes, before calling rename(). A malicious server (or a network MitM if downloading over HTTP) can send a Content-Disposition header to make pacman place the file anywhere in the filesystem, potentially leading to arbitrary root code execution. Notably, this bypasses pacman's package signature checking. This occurs in curl_download_internal in lib/libalpm/dload.c.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9686

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') (CWE/SANS Top 25)

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 2

Sources (Detail)

Source Url
MISC https://git.archlinux.org/pacman.git/commit/?h=release/5.1.x&id=1bf767234...
https://git.archlinux.org/pacman.git/commit/?id=9702703633bec2c007730006de2ae...
https://git.archlinux.org/pacman.git/commit/?id=d197d8ab82cf10650487518fb9680...

Alert History

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Date Informations
2021-05-04 13:43:36
  • Multiple Updates
2021-04-22 02:55:34
  • Multiple Updates
2020-11-10 05:22:47
  • Multiple Updates
2020-05-23 02:34:23
  • Multiple Updates
2019-08-07 12:10:58
  • Multiple Updates
2019-03-12 17:19:35
  • Multiple Updates
2019-03-11 21:19:49
  • First insertion