CVE-2020-1747
Cisco PyYAML Arbitrary Code Execution Vulnerability
Description
A vulnerability was discovered in the PyYAML library in versions before 5.3.1, where it is susceptible to arbitrary code execution when it processes untrusted YAML files through the full_load method or with the FullLoader loader. Applications that use the library to process untrusted input may be vulnerable to this flaw. An attacker could use this flaw to execute arbitrary code on the system by abusing the python/object/new constructor.
INFO
Published Date :
March 24, 2020, 3:15 p.m.
Last Modified :
Nov. 21, 2024, 5:11 a.m.
Source :
secalert@redhat.com
Remotely Exploitable :
Yes !
Impact Score :
5.9
Exploitability Score :
3.9
Public PoC/Exploit Available at Github
CVE-2020-1747 has a 6 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-2020-1747
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-2020-1747
.
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).
None
Python HTML
Radisys Vulnerability Assessment and Management System
Rust Makefile
None
CMake Shell Perl C++ C Batchfile CSS Makefile M4 Python
A centralized repository of standalone security patches for open source libraries.
appsec backport cve devsecops fix hotfix open-source patch protection remediation seal security update upgrade vulnerability
None
Shell Python JavaScript Jinja
None
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2020-1747
vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2020-1747
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 af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00017.html Added Reference http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00017.html Added Reference https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1747 Added Reference https://github.com/yaml/pyyaml/pull/386 Added Reference https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7PPAS6C4SZRDQLR7C22A5U3QOLXY33JX/ Added Reference https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/K5HEPD7LEVDPCITY5IMDYWXUMX37VFMY/ Added Reference https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MMQXSZXNJT6ERABJZAAICI3DQSQLCP3D/ Added Reference https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WORRFHPQVAFKKXXWLSSW6XKUYLWM6CSH/ Added Reference https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZBJA3SGNJKCAYPSHOHWY3KBCWNM5NYK2/ Added Reference https://www.oracle.com/security-alerts/cpujul2022.html -
CVE Modified by secalert@redhat.com
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by secalert@redhat.com
Nov. 07, 2023
Action Type Old Value New Value Added Reference Red Hat, Inc. https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WORRFHPQVAFKKXXWLSSW6XKUYLWM6CSH/ [No types assigned] Added Reference Red Hat, Inc. https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZBJA3SGNJKCAYPSHOHWY3KBCWNM5NYK2/ [No types assigned] Added Reference Red Hat, Inc. https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/K5HEPD7LEVDPCITY5IMDYWXUMX37VFMY/ [No types assigned] Added Reference Red Hat, Inc. https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MMQXSZXNJT6ERABJZAAICI3DQSQLCP3D/ [No types assigned] Added Reference Red Hat, Inc. https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7PPAS6C4SZRDQLR7C22A5U3QOLXY33JX/ [No types assigned] Removed Reference Red Hat, Inc. https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WORRFHPQVAFKKXXWLSSW6XKUYLWM6CSH/ Removed Reference Red Hat, Inc. https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZBJA3SGNJKCAYPSHOHWY3KBCWNM5NYK2/ Removed Reference Red Hat, Inc. https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/K5HEPD7LEVDPCITY5IMDYWXUMX37VFMY/ Removed Reference Red Hat, Inc. https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MMQXSZXNJT6ERABJZAAICI3DQSQLCP3D/ Removed Reference Red Hat, Inc. https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7PPAS6C4SZRDQLR7C22A5U3QOLXY33JX/ Removed CVSS V3 Red Hat, Inc. AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Added CVSS V3.1 Red Hat, Inc. AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H -
Modified Analysis by nvd@nist.gov
Feb. 03, 2023
Action Type Old Value New Value Changed Reference Type https://www.oracle.com/security-alerts/cpujul2022.html No Types Assigned https://www.oracle.com/security-alerts/cpujul2022.html Patch, Third Party Advisory Added CPE Configuration OR *cpe:2.3:a:oracle:communications_cloud_native_core_network_function_cloud_native_environment:22.1.0:*:*:*:*:*:*:* -
CVE Modified by secalert@redhat.com
Jul. 25, 2022
Action Type Old Value New Value Added Reference https://www.oracle.com/security-alerts/cpujul2022.html [No Types Assigned] -
Modified Analysis by nvd@nist.gov
Mar. 26, 2021
Action Type Old Value New Value Changed Reference Type https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7PPAS6C4SZRDQLR7C22A5U3QOLXY33JX/ No Types Assigned https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7PPAS6C4SZRDQLR7C22A5U3QOLXY33JX/ Mailing List, Third Party Advisory Changed Reference Type https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/K5HEPD7LEVDPCITY5IMDYWXUMX37VFMY/ Third Party Advisory https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/K5HEPD7LEVDPCITY5IMDYWXUMX37VFMY/ Mailing List, Third Party Advisory Changed Reference Type https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MMQXSZXNJT6ERABJZAAICI3DQSQLCP3D/ Third Party Advisory https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MMQXSZXNJT6ERABJZAAICI3DQSQLCP3D/ Mailing List, Third Party Advisory Changed Reference Type https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WORRFHPQVAFKKXXWLSSW6XKUYLWM6CSH/ Third Party Advisory https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WORRFHPQVAFKKXXWLSSW6XKUYLWM6CSH/ Mailing List, Third Party Advisory Changed Reference Type https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZBJA3SGNJKCAYPSHOHWY3KBCWNM5NYK2/ Third Party Advisory https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZBJA3SGNJKCAYPSHOHWY3KBCWNM5NYK2/ Mailing List, Third Party Advisory -
CVE Modified by secalert@redhat.com
Jan. 30, 2021
Action Type Old Value New Value Added Reference https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7PPAS6C4SZRDQLR7C22A5U3QOLXY33JX/ [No Types Assigned] -
Modified Analysis by nvd@nist.gov
Jan. 27, 2021
Action Type Old Value New Value Changed Reference Type http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00017.html No Types Assigned http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00017.html Mailing List, Third Party Advisory Changed Reference Type http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00017.html No Types Assigned http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00017.html Mailing List, Third Party Advisory Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1747 Issue Tracking, Third Party Advisory https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1747 Issue Tracking, Patch, Third Party Advisory Changed Reference Type https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MMQXSZXNJT6ERABJZAAICI3DQSQLCP3D/ No Types Assigned https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MMQXSZXNJT6ERABJZAAICI3DQSQLCP3D/ Third Party Advisory Changed CPE Configuration OR *cpe:2.3:a:pyyaml:pyyaml:*:*:*:*:*:*:*:* versions up to (excluding) 5.3.1 OR *cpe:2.3:a:pyyaml:pyyaml:*:*:*:*:*:*:*:* versions from (including) 5.1 up to (excluding) 5.3.1 Changed CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* OR *cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:* -
CVE Modified by secalert@redhat.com
Jan. 26, 2021
Action Type Old Value New Value Added Reference https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MMQXSZXNJT6ERABJZAAICI3DQSQLCP3D/ [No Types Assigned] -
CPE Deprecation Remap by nvd@nist.gov
May. 28, 2020
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:a:yaml:pyyaml:*:*:*:*:*:*:*:* versions from (excluding) 5.3.1 OR *cpe:2.3:a:pyyaml:pyyaml:*:*:*:*:*:*:*:* versions from (excluding) 5.3.1 -
CVE Modified by secalert@redhat.com
May. 11, 2020
Action Type Old Value New Value Added Reference http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00017.html [No Types Assigned] -
CVE Modified by secalert@redhat.com
Apr. 12, 2020
Action Type Old Value New Value Added Reference http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00017.html [No Types Assigned] -
Initial Analysis by nvd@nist.gov
Mar. 30, 2020
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:C/I:C/A:C) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1747 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1747 Issue Tracking, Third Party Advisory Changed Reference Type https://github.com/yaml/pyyaml/pull/386 No Types Assigned https://github.com/yaml/pyyaml/pull/386 Patch, Third Party Advisory Changed Reference Type https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/K5HEPD7LEVDPCITY5IMDYWXUMX37VFMY/ No Types Assigned https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/K5HEPD7LEVDPCITY5IMDYWXUMX37VFMY/ Third Party Advisory Changed Reference Type https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WORRFHPQVAFKKXXWLSSW6XKUYLWM6CSH/ No Types Assigned https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WORRFHPQVAFKKXXWLSSW6XKUYLWM6CSH/ Third Party Advisory Changed Reference Type https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZBJA3SGNJKCAYPSHOHWY3KBCWNM5NYK2/ No Types Assigned https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZBJA3SGNJKCAYPSHOHWY3KBCWNM5NYK2/ Third Party Advisory Added CWE NIST CWE-20 Added CPE Configuration OR *cpe:2.3:a:yaml:pyyaml:*:*:*:*:*:*:*:* versions up to (excluding) 5.3.1 Added CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* -
CVE Modified by secalert@redhat.com
Mar. 29, 2020
Action Type Old Value New Value Added Reference https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/K5HEPD7LEVDPCITY5IMDYWXUMX37VFMY/ [No Types Assigned] -
CVE Modified by secalert@redhat.com
Mar. 27, 2020
Action Type Old Value New Value Added Reference https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZBJA3SGNJKCAYPSHOHWY3KBCWNM5NYK2/ [No Types Assigned] -
CVE Modified by secalert@redhat.com
Mar. 27, 2020
Action Type Old Value New Value Added Reference https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WORRFHPQVAFKKXXWLSSW6XKUYLWM6CSH/ [No Types Assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2020-1747
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-2020-1747
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.54 }} -0.03%
score
0.77037
percentile