CVE-2020-3423
Cisco IOS XE Lua Interpreter Arbitrary Code Execution Vulnerability
Description
A vulnerability in the implementation of the Lua interpreter that is integrated in Cisco IOS XE Software could allow an authenticated, local attacker to execute arbitrary code with root privileges on the underlying Linux operating system (OS) of an affected device. The vulnerability is due to insufficient restrictions on Lua function calls within the context of user-supplied Lua scripts. An attacker with valid administrative credentials could exploit this vulnerability by submitting a malicious Lua script. When this file is processed, an exploitable buffer overflow condition could occur. A successful exploit could allow the attacker to execute arbitrary code with root privileges on the underlying Linux OS of the affected device.
INFO
Published Date :
Sept. 24, 2020, 6:15 p.m.
Last Modified :
Nov. 7, 2023, 3:22 a.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
5.9
Exploitability Score :
0.8
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-2020-3423.
| URL | Resource |
|---|---|
| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ios-lua-rce-7VeJX4f | Vendor 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).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2020-3423 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2020-3423 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]
Nov. 07, 2023
Action Type Old Value New Value Removed CVSS V3 Cisco Systems, Inc. AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:N Added CVSS V3.1 Cisco Systems, Inc. AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:N -
CPE Deprecation Remap by [email protected]
May. 22, 2023
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:h:cisco:isr_1101:-:*:*:*:*:*:*:* OR *cpe:2.3:h:cisco:1101_integrated_services_router:-:*:*:*:*:*:*:* -
CPE Deprecation Remap by [email protected]
May. 22, 2023
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:h:cisco:isr_1109:-:*:*:*:*:*:*:* OR *cpe:2.3:h:cisco:1109_integrated_services_router:-:*:*:*:*:*:*:* -
CPE Deprecation Remap by [email protected]
May. 22, 2023
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:h:cisco:isr_111x:-:*:*:*:*:*:*:* OR *cpe:2.3:h:cisco:111x_integrated_services_router:-:*:*:*:*:*:*:* -
CPE Deprecation Remap by [email protected]
May. 22, 2023
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:h:cisco:isr_1120:-:*:*:*:*:*:*:* OR *cpe:2.3:h:cisco:1120_integrated_services_router:-:*:*:*:*:*:*:* -
CPE Deprecation Remap by [email protected]
May. 22, 2023
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:h:cisco:isr_1160:-:*:*:*:*:*:*:* OR *cpe:2.3:h:cisco:1160_integrated_services_router:-:*:*:*:*:*:*:* -
CPE Deprecation Remap by [email protected]
May. 22, 2023
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:h:cisco:isr_1111x:-:*:*:*:*:*:*:* OR *cpe:2.3:h:cisco:1111x_integrated_services_router:-:*:*:*:*:*:*:* -
CPE Deprecation Remap by [email protected]
May. 22, 2023
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:h:cisco:isr_1100:-:*:*:*:*:*:*:* OR *cpe:2.3:h:cisco:1100_integrated_services_router:-:*:*:*:*:*:*:* -
Reanalysis by [email protected]
Oct. 07, 2021
Action Type Old Value New Value Changed CPE Configuration AND OR *cpe:2.3:o:cisco:ios_xe:-:*:*:*:*:*:*:* OR cpe:2.3:h:cisco:1100_integrated_services_router:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:4221_integrated_services_router:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:4321_integrated_services_router:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:4331_integrated_services_router:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:4351_integrated_services_router:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:4431_integrated_services_router:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:4451-x_integrated_services_router:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:4461_integrated_services_router:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:asr_1001-hx:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:asr_1001-x:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:asr_1002-hx:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:asr_1002-x:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:asr_1004:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:asr_1006:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:asr_1006-x_router:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:asr_1009-x_router:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:asr_1013:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:cbr-8_converged_broadband_router:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:cloud_services_router_1000v:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:isr_1100_router:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:isr_1101_router:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:isr_1109_router:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:isr_1111x_router:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:isr_111x_router:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:isr_1120_router:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:isr_1160_router:-:*:*:*:*:*:*:* AND OR *cpe:2.3:o:cisco:ios_xe:-:*:*:*:*:*:*:* OR cpe:2.3:h:cisco:1100_integrated_services_router:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:4221_integrated_services_router:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:4321_integrated_services_router:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:4331_integrated_services_router:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:4351_integrated_services_router:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:4431_integrated_services_router:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:4451-x_integrated_services_router:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:4461_integrated_services_router:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:asr_1001-hx:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:asr_1001-x:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:asr_1002-hx:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:asr_1002-x:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:asr_1004:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:asr_1006:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:asr_1006-x:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:asr_1009-x:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:asr_1013:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:cbr-8_converged_broadband_router:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:cloud_services_router_1000v:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:isr_1100:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:isr_1101:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:isr_1109:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:isr_1111x:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:isr_111x:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:isr_1120:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:isr_1160:-:*:*:*:*:*:*:* -
CPE Deprecation Remap by [email protected]
Oct. 05, 2021
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:h:cisco:asr_1001-hx_router:-:*:*:*:*:*:*:* OR *cpe:2.3:h:cisco:asr_1001-hx:-:*:*:*:*:*:*:* -
CPE Deprecation Remap by [email protected]
Oct. 05, 2021
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:h:cisco:asr_1004_router:-:*:*:*:*:*:*:* OR *cpe:2.3:h:cisco:asr_1004:-:*:*:*:*:*:*:* -
CPE Deprecation Remap by [email protected]
Oct. 05, 2021
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:h:cisco:asr_1006_router:-:*:*:*:*:*:*:* OR *cpe:2.3:h:cisco:asr_1006:-:*:*:*:*:*:*:* -
CPE Deprecation Remap by [email protected]
Oct. 05, 2021
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:h:cisco:asr_1002-x_router:-:*:*:*:*:*:*:* OR *cpe:2.3:h:cisco:asr_1002-x:-:*:*:*:*:*:*:* -
CPE Deprecation Remap by [email protected]
Oct. 05, 2021
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:h:cisco:asr_1013_router:-:*:*:*:*:*:*:* OR *cpe:2.3:h:cisco:asr_1013:-:*:*:*:*:*:*:* -
CPE Deprecation Remap by [email protected]
Oct. 05, 2021
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:h:cisco:asr_1001-x_router:-:*:*:*:*:*:*:* OR *cpe:2.3:h:cisco:asr_1001-x:-:*:*:*:*:*:*:* -
CPE Deprecation Remap by [email protected]
Oct. 05, 2021
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:h:cisco:asr_1002-hx_router:-:*:*:*:*:*:*:* OR *cpe:2.3:h:cisco:asr_1002-hx:-:*:*:*:*:*:*:* -
Reanalysis by [email protected]
Aug. 06, 2021
Action Type Old Value New Value -
Initial Analysis by [email protected]
Oct. 08, 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:H/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ios-lua-rce-7VeJX4f No Types Assigned https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ios-lua-rce-7VeJX4f Vendor Advisory Added CWE NIST CWE-119 Added CPE Configuration AND OR *cpe:2.3:o:cisco:ios_xe:-:*:*:*:*:*:*:* OR cpe:2.3:h:cisco:1100_integrated_services_router:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:4221_integrated_services_router:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:4321_integrated_services_router:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:4331_integrated_services_router:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:4351_integrated_services_router:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:4431_integrated_services_router:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:4451-x_integrated_services_router:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:4461_integrated_services_router:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:asr_1001-hx_router:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:asr_1001-x_router:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:asr_1002-hx_router:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:asr_1002-x_router:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:asr_1004_router:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:asr_1006-x_router:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:asr_1006_router:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:asr_1009-x_router:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:asr_1013_router:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:cbr-8_converged_broadband_router:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:cloud_services_router_1000v:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:isr_1100_router:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:isr_1101_router:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:isr_1109_router:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:isr_1111x_router:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:isr_111x_router:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:isr_1120_router:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:isr_1160_router:-:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Sep. 24, 2020
Action Type Old Value New Value Changed Description A vulnerability in the implementation of the Lua interpreter that is integrated in Cisco IOS XE Software could allow an authenticated, local attacker to execute arbitrary code with root privileges on the underlying Linux operating system (OS) of an affected device. The vulnerability is due to insufficient restrictions on Lua function calls within the context of user-supplied Lua scripts. An attacker with valid administrative credentials could exploit this vulnerability by submitting a malicious Lua script. When this file is processed, an exploitable buffer overflow condition could occur. A successful exploit could allow the attacker to execute arbitrary code with root privileges on the underlying Linux OS of the affected device. A vulnerability in the implementation of the Lua interpreter that is integrated in Cisco IOS XE Software could allow an authenticated, local attacker to execute arbitrary code with root privileges on the underlying Linux operating system (OS) of an affected device. The vulnerability is due to insufficient restrictions on Lua function calls within the context of user-supplied Lua scripts. An attacker with valid administrative credentials could exploit this vulnerability by submitting a malicious Lua script. When this file is processed, an exploitable buffer overflow condition could occur. A successful exploit could allow the attacker to execute arbitrary code with root privileges on the underlying Linux OS of the affected device.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2020-3423 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-2020-3423
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.04 }} 0.00%
score
0.05635
percentile