CVE-2019-14868

HIGH7.4

In ksh version 20120801, a flaw was found in the way it evaluates certain environment variables

Published Apr 2, 2020

Modified 1 years ago

No fix available

Details

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.

References

WEBhttp://seclists.org/fulldisclosure/2020/May/53 WEBhttps://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14868 WEBhttps://github.com/att/ast/commit/c7de8b641266bac7c77942239ac659edfee9ecd2 WEBhttps://lists.debian.org/debian-lts-announce/2020/07/msg00015.html WEBhttps://support.apple.com/kb/HT211170 ADVISORYhttps://www.cve.org/CVERecord?id=CVE-2019-14868

CVSS Analysis

CVSS v3.1

7.4

Exploitability

Attack Vector

LocalAV:L

Attack Complexity

HighAC:H

Privileges Required

NonePR:N

User Interaction

NoneUI:N

Scope

UnchangedS:U

Impact

Confidentiality

HighC:H

Integrity

HighI:H

Availability

HighA:H

7.4/CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness Type (CWE)

Input Validation

CWE-77

Command Injection

Ecosystems

Timeline

PublishedApr 2, 2020

ModifiedAug 5, 2024