CVE-2019-3464

CRITICAL

rssh - Remote Code Execution via Environment Variable Injection

Title source: llm
STIX 2.1

Description

Insufficient sanitization of environment variables passed to rsync can bypass the restrictions imposed by rssh, a restricted shell that should restrict users to perform only rsync operations, resulting in the execution of arbitrary shell commands.

References (10)

Core 10
Core References
Third Party Advisory vendor-advisory x_refsource_debian
https://www.debian.org/security/2019/dsa-4382
Mailing List, Third Party Advisory mailing-list x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2019/02/msg00007.html
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/106839
Third Party Advisory vendor-advisory x_refsource_ubuntu
https://usn.ubuntu.com/3946-1/
Third Party Advisory vendor-advisory x_refsource_gentoo
https://security.gentoo.org/glsa/202007-29
Mailing List, Not Applicable, Third Party Advisory mailing-list x_refsource_fulldisc
http://seclists.org/fulldisclosure/2021/May/78

Scores

CVSS v3 9.8
EPSS 0.0855
EPSS Percentile 92.5%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-665
Status published
Products (10)
canonical/ubuntu_linux 14.04
canonical/ubuntu_linux 16.04
canonical/ubuntu_linux 18.04
canonical/ubuntu_linux 18.10
debian/debian_linux 8.0
debian/debian_linux 9.0
fedoraproject/fedora 29
fedoraproject/fedora 30
fedoraproject/fedora 31
pizzashack/rssh 2.3.4
Published Feb 06, 2019
Tracked Since Feb 18, 2026