5.3
MEDIUM
CVE-2021-22764
"PowerLogic Authentication Bypass"
Description

A CWE-287: Improper Authentication vulnerability exists in PowerLogic PM55xx, PowerLogic PM8ECC, PowerLogic EGX100 and PowerLogic EGX300 (see security notification for version infromation) that could cause loss of connectivity to the device via Modbus TCP protocol when an attacker sends a specially crafted HTTP request.

INFO

Published Date :

June 11, 2021, 4:15 p.m.

Last Modified :

Nov. 7, 2023, 3:30 a.m.

Remotely Exploitable :

Yes !

Impact Score :

1.4

Exploitability Score :

3.9
Affected Products

The following products are affected by CVE-2021-22764 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.

ID Vendor Product Action
1 Schneider-electric powerlogic_pm5560_firmware
2 Schneider-electric powerlogic_pm5561_firmware
3 Schneider-electric powerlogic_pm5562_firmware
4 Schneider-electric powerlogic_pm5563_firmware
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-2021-22764.

URL Resource
http://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-159-02%2Chttp://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-159-03

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-2021-22764 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-22764 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
    Added Reference Schneider Electric SE http://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-159-02%2Chttp://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-159-03 [No types assigned]
    Removed Reference Schneider Electric SE http://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-159-02,http://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-159-03
  • Initial Analysis by [email protected]

    Jun. 23, 2021

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:N/I:N/A:P)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
    Changed Reference Type http://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-159-02,http://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-159-03 No Types Assigned http://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-159-02,http://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-159-03 Vendor Advisory
    Added CPE Configuration AND OR *cpe:2.3:o:schneider-electric:powerlogic_pm5560_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 2.7.8 OR cpe:2.3:h:schneider-electric:powerlogic_pm5560:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:schneider-electric:powerlogic_pm5561_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 10.7.3 OR cpe:2.3:h:schneider-electric:powerlogic_pm5561:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:schneider-electric:powerlogic_pm5562_firmware:*:*:*:*:*:*:*:* versions up to (including) 2.5.4 OR cpe:2.3:h:schneider-electric:powerlogic_pm5562:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:schneider-electric:powerlogic_pm5563_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 2.7.8 OR cpe:2.3:h:schneider-electric:powerlogic_pm5563:-:*:*:*:*:*:*:*
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2021-22764 is associated with the following CWEs:

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.22 }} 0.06%

score

0.59962

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability