CVE-2019-14868

In ksh version 20120801, a flaw was found in the way it evaluates certain environment variables. An attacker could use this flaw to override or bypass environment restrictions to execute shell commands. Services and applications that allow remote unauthenticated attackers to provide one of those environment variables could allow them to exploit this issue remotely.

CVSS v3.0 7.8 HIGH
CVSS v2.0 7.2 HIGH

7.8^/10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.2^/10

CVSS v2.0 : HIGH

V2 Legend

Vector : AV:L/AC:L/Au:N/C:C/I:C/A:C

Exploitability : 3.9 / Impact : 10.0

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14868	Issue Tracking Third Party Advisory
https://github.com/att/ast/commit/c7de8b641266bac7c77942239ac659edfee9ecd2	Patch Third Party Advisory
https://support.apple.com/kb/HT211170	Third Party Advisory
http://seclists.org/fulldisclosure/2020/May/53	Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/07/msg00015.html	Mailing List Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:ksh_project:ksh:20120801:*:*:*:*:*:*:*

Configuration 2 (hide)

cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

Configuration 3 (hide)

cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*

Information

Published : 2020-04-02 10:15

Updated : 2023-02-12 15:36

NVD link : CVE-2019-14868

Mitre link : CVE-2019-14868

JSON object : View

CWE

CWE-77

Improper Neutralization of Special Elements used in a Command ('Command Injection')

Products Affected

debian

debian_linux

ksh_project

apple

mac_os_x

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7.8 /10