CVE-2019-14868
OpenServer ksh Environment Variable Injection Vulnerability
Description
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.
INFO
Published Date :
April 2, 2020, 5:15 p.m.
Last Modified :
Feb. 12, 2023, 11:36 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
5.9
Exploitability Score :
1.8
Public PoC/Exploit Available at Github
CVE-2019-14868 has a 1 public PoC/Exploit
available at Github.
Go to the Public Exploits
tab to see the list.
Affected Products
The following products are affected by CVE-2019-14868
vulnerability.
Even if cvefeed.io
is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2019-14868
.
URL | Resource |
---|---|
http://seclists.org/fulldisclosure/2020/May/53 | Mailing List Third Party Advisory |
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://lists.debian.org/debian-lts-announce/2020/07/msg00015.html | Mailing List Third Party Advisory |
https://support.apple.com/kb/HT211170 | Third Party Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Mahdi's build of mksh
Shell Perl C Roff
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2019-14868
vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2019-14868
vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Feb. 12, 2023
Action Type Old Value New Value Changed Description A flaw was found in the way ksh 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. 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. Removed Reference https://access.redhat.com/errata/RHSA-2020:0431 [No Types Assigned] Removed Reference https://access.redhat.com/errata/RHSA-2020:0515 [No Types Assigned] Removed Reference https://access.redhat.com/errata/RHSA-2020:0559 [No Types Assigned] Removed Reference https://access.redhat.com/errata/RHSA-2020:0568 [No Types Assigned] Removed Reference https://access.redhat.com/errata/RHSA-2020:1332 [No Types Assigned] Removed Reference https://access.redhat.com/errata/RHSA-2020:1333 [No Types Assigned] Removed Reference https://access.redhat.com/errata/RHSA-2020:2210 [No Types Assigned] Removed Reference https://access.redhat.com/errata/RHSA-2020:5351 [No Types Assigned] Removed Reference https://access.redhat.com/errata/RHSA-2020:5352 [No Types Assigned] Removed Reference https://access.redhat.com/security/cve/CVE-2019-14868 [No Types Assigned] Removed Reference https://bugzilla.redhat.com/show_bug.cgi?id=1757324 [No Types Assigned] Added CWE Red Hat, Inc. CWE-77 -
CVE Modified by [email protected]
Feb. 02, 2023
Action Type Old Value New Value Changed Description 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. A flaw was found in the way ksh 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. Removed CVSS V3 Red Hat, Inc. AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H Added CVSS V3.1 Red Hat, Inc. AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H Added Reference https://access.redhat.com/errata/RHSA-2020:2210 [No Types Assigned] Added Reference https://access.redhat.com/errata/RHSA-2020:1332 [No Types Assigned] Added Reference https://access.redhat.com/errata/RHSA-2020:5351 [No Types Assigned] Added Reference https://access.redhat.com/errata/RHSA-2020:5352 [No Types Assigned] Added Reference https://bugzilla.redhat.com/show_bug.cgi?id=1757324 [No Types Assigned] Added Reference https://access.redhat.com/errata/RHSA-2020:0568 [No Types Assigned] Added Reference https://access.redhat.com/errata/RHSA-2020:0515 [No Types Assigned] Added Reference https://access.redhat.com/errata/RHSA-2020:0559 [No Types Assigned] Added Reference https://access.redhat.com/errata/RHSA-2020:0431 [No Types Assigned] Added Reference https://access.redhat.com/errata/RHSA-2020:1333 [No Types Assigned] Added Reference https://access.redhat.com/security/cve/CVE-2019-14868 [No Types Assigned] Removed CWE Red Hat, Inc. CWE-77 -
Modified Analysis by [email protected]
Oct. 09, 2020
Action Type Old Value New Value Changed Reference Type http://seclists.org/fulldisclosure/2020/May/53 No Types Assigned http://seclists.org/fulldisclosure/2020/May/53 Mailing List, Third Party Advisory Changed Reference Type https://lists.debian.org/debian-lts-announce/2020/07/msg00015.html No Types Assigned https://lists.debian.org/debian-lts-announce/2020/07/msg00015.html Mailing List, Third Party Advisory Changed Reference Type https://support.apple.com/kb/HT211170 No Types Assigned https://support.apple.com/kb/HT211170 Third Party Advisory Removed CWE NIST CWE-74 Added CWE NIST CWE-77 Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:* versions up to (excluding) 10.15.5 -
CVE Modified by [email protected]
Jul. 21, 2020
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2020/07/msg00015.html [No Types Assigned] -
CVE Modified by [email protected]
May. 29, 2020
Action Type Old Value New Value Added Reference http://seclists.org/fulldisclosure/2020/May/53 [No Types Assigned] -
CVE Modified by [email protected]
May. 27, 2020
Action Type Old Value New Value Added Reference https://support.apple.com/kb/HT211170 [No Types Assigned] -
Initial Analysis by [email protected]
Apr. 03, 2020
Action Type Old Value New Value Added CVSS V2 NIST (AV:L/AC:L/Au:N/C:C/I:C/A:C) Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14868 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14868 Issue Tracking, Third Party Advisory Changed Reference Type https://github.com/att/ast/commit/c7de8b641266bac7c77942239ac659edfee9ecd2 No Types Assigned https://github.com/att/ast/commit/c7de8b641266bac7c77942239ac659edfee9ecd2 Patch, Third Party Advisory Added CWE NIST CWE-74 Added CPE Configuration OR *cpe:2.3:a:ksh_project:ksh:20120801:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2019-14868
is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2019-14868
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.20 }} 0.00%
score
0.55638
percentile