Vulnerability Name:

CVE-2019-3464 (CCN-157395)

Assigned:2018-12-31
Published:2019-02-05
Updated:2021-07-21
Summary: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.
CVSS v3 Severity:9.8 Critical (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
8.5 High (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
9.8 Critical (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
8.5 High (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
CVSS v2 Severity:7.5 High (CVSS v2 Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
10.0 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
Vulnerability Type:CWE-20
Vulnerability Consequences:Gain Access
References:Source: MITRE
Type: CNA
CVE-2019-3464

Source: FULLDISC
Type: Mailing List, Not Applicable, Third Party Advisory
20210526 KL-001-2021-007: CommScope Ruckus IoT Controller Undocumented Account

Source: BID
Type: Third Party Advisory, VDB Entry
106839

Source: XF
Type: UNKNOWN
rssh-cve20193464-cmd-exec(157395)

Source: CCN
Type: Debian Mailing List, Tue, 5 Feb 2019 16:28:24 -0500
rssh security update

Source: MLIST
Type: Mailing List, Third Party Advisory
[debian-lts-announce] 20190206 [SECURITY] [DLA 1660-1] rssh security update

Source: FEDORA
Type: Mailing List, Third Party Advisory
FEDORA-2019-e47add6b2b

Source: FEDORA
Type: Mailing List, Third Party Advisory
FEDORA-2019-bfb407659e

Source: FEDORA
Type: Mailing List, Third Party Advisory
FEDORA-2019-d1487c13ac

Source: CCN
Type: Debian Web site
Source Package: rssh

Source: GENTOO
Type: Third Party Advisory
GLSA-202007-29

Source: MISC
Type: Mailing List, Third Party Advisory
https://tracker.debian.org/news/1026713/accepted-rssh-234-5deb9u2-source-amd64-into-stable-embargoed-stable/

Source: UBUNTU
Type: Third Party Advisory
USN-3946-1

Source: DEBIAN
Type: Third Party Advisory
DSA-4382

Vulnerable Configuration:Configuration 1:
  • cpe:/a:pizzashack:rssh:2.3.4:*:*:*:*:*:*:*

    • Configuration 2:
  • cpe:/o:debian:debian_linux:8.0:*:*:*:*:*:*:*
  • OR cpe:/o:debian:debian_linux:9.0:*:*:*:*:*:*:*

    • Configuration 3:
  • cpe:/o:fedoraproject:fedora:29:*:*:*:*:*:*:*
  • OR cpe:/o:fedoraproject:fedora:30:*:*:*:*:*:*:*
  • OR cpe:/o:fedoraproject:fedora:31:*:*:*:*:*:*:*

    • Configuration 4:
  • cpe:/o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*
  • OR cpe:/o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*
  • OR cpe:/o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
  • OR cpe:/o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:com.ubuntu.bionic:def:20193464000
    V
    		CVE-2019-3464 on Ubuntu 18.04 LTS (bionic) - medium.
    2019-02-06
    oval:com.ubuntu.cosmic:def:201934640000000
    V
    		CVE-2019-3464 on Ubuntu 18.10 (cosmic) - medium.
    2019-02-06
    oval:com.ubuntu.cosmic:def:20193464000
    V
    		CVE-2019-3464 on Ubuntu 18.10 (cosmic) - medium.
    2019-02-06
    oval:com.ubuntu.bionic:def:201934640000000
    V
    		CVE-2019-3464 on Ubuntu 18.04 LTS (bionic) - medium.
    2019-02-06
    oval:com.ubuntu.trusty:def:20193464000
    V
    		CVE-2019-3464 on Ubuntu 14.04 LTS (trusty) - medium.
    2019-02-06
    oval:com.ubuntu.xenial:def:201934640000000
    V
    		CVE-2019-3464 on Ubuntu 16.04 LTS (xenial) - medium.
    2019-02-06
    oval:com.ubuntu.xenial:def:20193464000
    V
    		CVE-2019-3464 on Ubuntu 16.04 LTS (xenial) - medium.
    2019-02-06
    BACK
    pizzashack rssh 2.3.4
    debian debian linux 8.0
    debian debian linux 9.0
    fedoraproject fedora 29
    fedoraproject fedora 30
    fedoraproject fedora 31
    canonical ubuntu linux 14.04
    canonical ubuntu linux 16.04
    canonical ubuntu linux 18.04
    canonical ubuntu linux 18.10