CVE-2019-9686
Published Mar 11, 2019
Last updated 4 years ago
Overview
- Description
- pacman before 5.1.3 allows directory traversal when installing a remote package via a specified URL "pacman -U <url>" 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.
- Source
- cve@mitre.org
- NVD status
- Analyzed
Social media
- Hype score
- Not currently trending
Risk scores
CVSS 3.1
- Type
- Primary
- Base score
- 8.8
- Impact score
- 5.9
- Exploitability score
- 2.8
- Vector string
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- Severity
- HIGH
CVSS 2.0
- Type
- Primary
- Base score
- 9.3
- Impact score
- 10
- Exploitability score
- 8.6
- Vector string
- AV:N/AC:M/Au:N/C:C/I:C/A:C
Weaknesses
- nvd@nist.gov
- CWE-22
Configurations
[
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:pacman_project:pacman:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "53E5D4C7-A60E-4422-9168-9EBFC93FF985",
"versionEndExcluding": "5.1.3"
}
],
"operator": "OR"
}
]
}
]